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general settings.py Source ##################################### # File for running TT alignment on 2010 data ##################################### from Configurables...
Data Container Profiling Introduction This page provides some interesting results from profiling different container implementations. The profiling was done with...
Data Containers for Track Discussions Introduction This page collects together some random thoughts on the various data containers in use in LHCb, as input to further...
Geometry Regions and Geometry aware Coordinates Introduction The purpose of this page is to share some ideas about geometry regions and geometry aware coordinates...
Identification of beauty and charm quark jets at LHCb The paper is available here. arXiv:1504.07670, LHCb PAPER 015 016 More detailed information: note 2014 074...
Getting started with BenderScript This `pseudo hands on` tutorial is an introduction to BenderScript a powerful Bender based enhancement of GaudiPython Dedicated...
LHCb Tutorial v12r1: Getting started with http://cern.ch/LHCb release area/DOC/bender Bender This hands on tutorial is an introduction to http://python.org...
LHCb Tutorial v14r5p1: Getting started with http://cern.ch/LHCb release area/DOC/bender Bender This hands on tutorial is an introduction to http://python.org...
LHCb Tutorial v24r0: Getting started with http://cern.ch/LHCb release area/DOC/bender Bender This hands on tutorial is an introduction to http://python.org...
LHCb Tutorial v28r0: Getting started with http://cern.ch/LHCb release area/DOC/bender Bender This hands on tutorial is an introduction to http://python.org...
Brunel v42r3p2 / First test with many events Test run with the following input taken from Freezer copied to volhcb34 Brunel v42r3p2 used, in config x86 64 slc5 gcc...
Brunel v44r0 Analysis (2012/11) The goal of this analysis is to check Brunel, LHCb`s reconstruction tool, to see where CPU time is spent and look for bottlenecks...
BandWidth division This page is to collect information regarding the bandwidth division for 2015 data taking. TOC: Data Preparation Datasets L0...
Check consistency between conditions used online ad offline To check that the same constants are used online and offline a script, for every run sent offline, configure...
Chi2 study This page collects information about study of the tracks enormous chi2. Analysis tool After creation the NTuple by the Gaudi based algorithm the data can...
Code Analysis Tools This page contain a guide to using various code profiling and analysis tools on the LHCb software. Please feel free to add any information to this...
StefanoPerazzini 31 May 2014 Stripping21 FAQ Which version of DaVinci do I have to use? In order to perform any test for S21 you should use the DaVinci HEAD present...
THIS PAGE IS OBSOLETE, PLEASE GO TO CondDBHowTo Getting started with CondDB (using Gaudi/LHCb) Overview In this TWiki page, I`ll try to give the fundamental informations...
LHCb Conditions Database How To Overview The aim of this page is to collect examples and instructions to allow the users of the LHCb Conditions Database (CondDB...
LHCb Conditions Database How To (for COOL) This is an old version of the documentation. The latest version is CondDBHowTo . Table of Contents Overview The...
Tracking and Alignment Plots for Conferences Tracking Muon tracking efficiency Plot Description Track reconstruction efficiency for 2012 and...
LHCb Core Software Meeting Date and Location 7. June 2006 10:30 11:40 CERN (2 R 030) Attendees Florence, Hubert, Juan, Marco Cl. (minutes), Markus, Matt,...
LHCb Core Software Meeting Date and Location 28. June 2006 10:00 11:30 CERN (2 R 030) Attendees Florence, Gloria, Guy (phone), Joel, Juan, Marco Ca., Marco...
LHCb Core Software Meeting Date and Location 19. July 2006 10:00 12:00 CERN (2 R 030) Attendees Andres (phone), Chris J., Florence, Gloria, Hubert, Juan,...
LHCb Core Software Meeting Date and Location 30. August 2006 10:00 12:30 CERN (2 R 030) Attendees Alexandr, Andrew, Ben, Florence, Gloria, Hubert, Joel, Juan...
LHCb Core Software Meeting Date and Location 27. September 2006 10:00 11:45 CERN (2 R 030) Attendees Florence, Greig (phone), Hubert, Joel, Juan, Marco Ca...
LHCb Core Software Meeting Date and Location 28 March 2007 10:30 12:20 CERN (2 R 030) (agenda) Attendees Florence, Gloria, Hubert, Marco Ca., Marco Cl. (minutes...
LHCb Core Software Meeting Date and Location 18 April 2007 10:30 12:30 CERN (2 R 030) Attendees Florence, Gloria, Marco Ca., Marco Cl. (minutes), Markus,...
LHCb Core Software Meeting Date and Location 23 May 2007 10:30 11:30 CERN (2 R 030) Attendees Gloria, Hubert, Marco Ca., Marco Cl. (minutes), Markus, Matt...
LHCb Core Software Meeting Date and Location March 12, 2008 10:40 12:00 CERN (2 R 030) Attendees Gloria, Hubert, Joel, Juan, Marco Ca., Marco Cl. (minutes...
LHCb Core Software Meeting Date and Location Dec 2008 10:30 12:30 CERN (2 R 030) Attendees Gloria, Hubert, Joel, Marco Ca., Marco Cl. (minutes), Markus, Olivier...
LHCb Core Software Meeting Date and Location Feb 2009 10:30 12:00 CERN (2 R 030) Attendees Gloria, Hubert, Joel, Marco Ca., Marco Cl. (minutes), Markus, Patrick...
LHCb Core Software Meeting Date and Location Apr 2009 10:30 12:00 CERN (2 R 030) Attendees Gloria, Joel, Karol, Marco Ca., Marco Cl. (minutes), Markus, Olivier...
LHCb Core Software Meeting Date and Location Apr 2009 10:30 12:00 CERN (2 R 030) Attendees Gloria, Joel, Juan, Karol, Marco Ca., Marco Cl. (minutes), Markus...
LHCb Core Software Meeting Date and Location May 2009 10:30 12:00 CERN (2 R 030) Attendees Gloria, Hubert, Joel, Juan, Karol, Marco Ca., Marco Cl. (minutes...
LHCb Core Software Meeting Date and Location 2009 09 03 10:35 12:15 CERN (2 R 030) Attendees Gloria, Illya, Juan, Karol, Marco Ca., Marco Cl. (minutes),...
LHCb Core Software Meeting Date and Location 14 Oct 2009 10:30 12:15 CERN (2 R 030) Attendees Gloria, Hubert, Illya, Juan, Karol, Marco Ca., Marco Cl. (minutes...
LHCb Core Software Meeting Date and Location 09 Dec 2009 10:30 12:40 CERN (2 R 030) Attendees Gloria, Hubert, Illya, Joel, Karol, Marco Ca., Marco Cl. (minutes...
LHCb Core Software Meeting Date and Location 18 May 2011 10:30 HH:MM CERN (2 R 030) Attendees Benedikt Hegner, Gloria Corti, Gregoire Astruc, Hubert Degaudenzi...
LHCb Core Software Meeting Date and Location 07 Mar 2012 10:35 11:45 CERN (2 R 030) Attendees Ben Couturier, Emmanouil Kiagias, Gloria Corti, Illya Shapoval...
LHCb Core Software Meeting Date and Location 05 Feb 2014 10:30 12:00 CERN (2 R 030) Attendees Ben Couturier, Gloria Corti, Illya Shapoval, Joel Closier, #Liang...
LHCb Core Software Meeting Date and Location 19 Mar 2014 10:30 11:05 CERN (2 R 030) Attendees Anastasia Karachaliou, Ben Couturier, Illya Shapoval, Joel Closier...
LHCb Core Software Meeting Date and Location 28 May 2014 10:30 10:50 CERN (2 R 030) Attendees Anastasia Karachaliou, Ben Couturier, Gloria Corti, Illya Shapoval...
LHCb Core Software Meeting Date and Location 04 Jun 2014 10:30 11:10 CERN (2 R 030) Attendees Anastasia Karachaliou, Ben Couturier, Gloria Corti, Illya Shapoval...
LHCb Core Software Meeting Date and Location 11 Jun 2014 10:30 11:10 CERN (2 R 030) Attendees Alex Grecu, Anastasia Karachaliou, Ben Couturier, Gloria Corti...
LHCb Core Software Meeting Date and Location 01 Oct 2014 10:30 11:50 CERN (2 R 030) Attendees Anastasia Karachaliou, Ben Couturier, Gloria Corti (Vidyo), Illya...
Stripping Selections of the CP WG gamma with loops Stripping20 (24 August 2012) End of the Year Reprocessing Owner Line name Stream Approved...
How to create a new stripping line IMPORTANT Please do not import anything explicitly from the StrippingSelections package, which is used for development. In production...
How to create HLT TCKs This page describes the standard procedure that HLT piquets should follow to produce split TCKs for 2016 datataking Producing a dataset with...
DaVinci Physics Analysis Application Introduction DaVinci is the LHCb Analysis software, built on the Gaudi Framework. Coordinators The DaVinci release manager is...
DaVinci Migration to DC06 page The migration to DC06 is more or less complete. Many thanks to all who contributed. Timescales Code needed for DC06 stripping...
LHCb DaVinci Tutorial This hands on tutorial should be followed by all newcomers to the LHCb physics analysis software. The purpose of these exercises is to allow...
DaVinci Tutorial 1 We start with a very simple algorithm that looks at muons and fills some histograms. Follow it step by step. Every single line you need to write...
DaVinci Tutorial 2 The purpose of these exercises is to allow you to write a complete though simple selection algorithms for a typical decay: Bs J/ . Let`s do the...
DaVinci Tutorial 3 This tutorial is optional. It shows you how to change a specialised algorithm in something more generic. When you`ll be writing your own algorithms...
DaVinci Tutorial 4 Introduction The purpose of this exercise is to allow you to write a set of complete though simple selection algorithms for a typical decay: Bs...
DaVinci Tutorial 5 We have the sequence to select Bs candidates but no idea if we do it right. We will start with adding some debugging tools. Slides This tutorial...
DaVinci Tutorial 7 This is all about the advanced configuration of DecayTreeTuple . Slides This tutorial corresponds to the slides `New developments in DecayTreeTuple...
DaVinci Tutorial 8 How to run on a stripped DST. This has been last shown on 24/10/2012. See slides. Prerequisites This assumes you know how to tun DaVinci and know...
DaVinci Tutorial 9 Multivariate Selection Introduction This tutorial introduces the usage of the package to add multivariate classifiers to your selection. It shows...
DaVinci Tutorial 9a Adding a custom Multivariate Algorithm to the MVADictTools This tutorial is an extension to DaVinciTutorial9 and shows how to implement a new...
DC06 Activities DC06 Aims Challenge (using the LCG production services): Distribution...
How to run on stripped DC06 data Introduction This page explains all you need to know to run on DC06 stripped data. If there`s something missing, just add it! It...
How to run on re stripped DC06 data with the new format DSTs Introduction This page is the follow up from the official Stripping page by Patrick Koppenburg and...
Decay tree fitter Introduction The traditional method to fit a decay tree is `leaf by leaf`: one starts by fitting the vertices most downstream in the decay and builds...
In the context of the Gaudi parallelization projects, a detailed trace of a Brunel Run was requested. A patch to the GaudiAlg package was therefore prepared that prints...
AndreiTsaregorodtsev 17 Nov 2008 DIRAC Production Management This page describes the procedures and tools to define and follow the LHCb productions within the DIRAC...
DIRAC Taskqueue Director This page describes the algorithms used for Pilot Submission in the DIRAC TaskqueueDirector Agent. Aim The aim of the DIRAC Director is...
AdriaCasajus 16 Feb 2009 DIRAC Task Queue Matching This page describes how the DIRAC handles matching using Task Queues. Scenario One of the most CPU consuming tasks...
Building the statistics tables for Monte Carlo simulations. Foreword The user of a Monte Carlo sample is interested in a number of efficiency values to make sense...
EventFilter (EF) is a service that trains classifier models (or formulae) online. Currently it supports only MatrixNet ( ) classifier, but it could be extended in...
Comments on general classes Name of container One thing missing in containers is the ability to get in one call the name in the TES of the container. The method...
THIS PAGE NEEDS REVISION. Frequently Asked Questions about the Conditions Database This FAQ presents answers to questions regarding the functionnalities and usage...
GaudiAlgorithm Class Description The GaudiAlgorithm class is an extension to the basic Gaudi Algorithm class. It provides additional shortcut methods for things such...
THIS PAGE IS OBSOLETE Gaudi Conditions Database How To Friday April 23 2005, the first production version of COOL has been released. It means that it`s time to...
GaudiExcise, slice out an algorithm from Gaudi to run in its own sandbox excise tr. vb. ( #277;k #8242;s #299;z #8242;) : To remove by or as if by cutting...
GaudiHistoAlg Class Description The GaudiHistoAlg class is an extension to the GaudiAlgorithm base class, providing a selection of plotting functions for easy creation...
Configuring Gauss: available and future controls A list of the existing control parameters and some of foreseen new one, their meaning as well as status of the implementation...
Gen/GenTune Monte Carlo (MC) Generators tuning with Rivet in Gauss For an introduction to RIVET , Professor and their current state of implementation in LHCb please...
Ghosts (since 2012) how to get a new ghostprobability on not so new datasets in DV wording (i keep `new` and `old` at their meanings from 2012, to avoid messing...
Introduction The rationale and the basics of the use of Git in LHCb have been presented and discussed in a few places: Analysis and Software Week (2016 01...
Introduction GitCondDB is the new backend for condition data in LHCb. Concept The idea is simple: map time evolution of conditions data on a filesystem hierarchy...
Global Particle ID Software in LHCb Introduction This page contains technical information on the global Particle ID software in LHCb. UNDER CONSTRUCTION Sub...
Global PID Meetings 07/04/2006 meeting is to discuss the status for DC06. 07/07/2005 This meeting focused on presentations by the sub detectors on their current...
Hadron Alley Conditions (Jose A. Hernando) calMatchChi2 cut: chi squared of the match between Velo(2D,3D) tracks and L0 Calo cluster. computed as...
Simulation Material description As of global tag dddb 20150724 the Herschel geometry is included in the DDDB. This includes not only the scintillators themselves...
Hlt2 line development in the new template. For HLT2 lines in RunII, a new template has been prepared to which all existing and new HLT2 lines must be adapted. This...
3.1 : Implementation of control and data flow in Gaudi Scheduler Lead group HLT Participating groups HLT, Computing Description Implement a...
HLT Developers Checklist LHCb code development is fully described in SVNUsageGuidelines. You must be familiar with the guidelines laid out there, for which this page...
Trigger Code For Developers Note: This is seriously obsolete How to define an HLT alley? The HLT alleys are defined via options, see for example HltHadConfAlleySequence...
HltLine Most of this section is stolen from Gerhard Raven`s presentation. (LHCb SoftwareWeek Thursday, March 19, 2009 ) Concept An Hlt decision involves...
Bugs TrackIPSelection crashes if outputVerticesName is provided (HR 07/03/2007) TrackIPSelection always executes endExecute (HR 07/03/...
The HLT piquet guide First Steps If you are a new HLT piquet shifter, read setup instructions here. Some of the steps listed should be followed before the first shift...
How to modify the HLT TCK Introduction to TCKs and Manifests The Hlt configuration lives in $HLTTCKROOT/config.tar, which contains all configurations ever deployed...
Tracking in the High Level Trigger Tracking in 2015 Running the tracking only HLT tests There is a suite of qmtests available at Hlt/Moore/tests/qmtest/moore/physics...
Hlt Trigger Selection Naming Convention The following naming convention applies to strings used to identify Trigger Selections which may get saved in HltSummary. Since...
Upgrade HLT emulation This page provides information about the upgrade HLT emulation. Installation $ SetupProject brunel v45r1 build env # these extra packages are...
How to add a selection (preselection, offline selection) Introduction This page explains how to register a preselection to be run in the stripping. It is assumed...
Inclusive jets and dijets in LHCb The paper is available (LHCb CONF 2011 015). LHCB CONF 2011 015 Abstract The region #951; 3 is a kinematic range of interest...
LHCb jet performance at #8730;s 7 TeV The draft note is available here: Abstract Jet studies at LHCb are presented in this note to support jet measurements performed...
L0Muon Software L0Muon event model see L0Muon event model (top) L0Muon emulator The L0Muon emulator emulates the L0Muon trigger processing. It is based on 2 main...
To enable/disable a trigger channel and to change a downscaling fraction Open the L0DU FSM On windows: G:\online\ecs\Shortcuts311\TRG\TRGL0DU\TRGL0DU...
LHCb Background This page contains information related to machine related background studies in the LHCb experiment. Additional information can be found on the webpage...
Calorimeter tasks in the Calibration Farm the Calibration Farm the Orwell project the CaloCalib package Online Histogram production : CaloCalib algorithm...
Bookkeeping of the Calorimeter Commissioning Data This page provides useful information about the data samples stored during the commissioning phase of the calorimeters...
How to : setting the online DAQ This page contains the information that basic commissionners have to know to configure and run the DAQ in the calibration farm...
Calorimeter Data Displays This page contains nice displays of calorimeter data. Cosmics event August 2008 : injection event LHC TI8 TED injection (run...
Calorimeter Readout Scheme THIS PAGE HAVE BEEN MIGRATED TO A NEW ONLINE TWIKI PAGE INFORMATION BELOW ARE NO LONGER MAINTAINED AND MAY BE OBSOLETE (WILL DISAPPEAR...
LHCb Coding Guidelines Table of Contents C Coding Guidelines We suggest to follow, as much as possible, Bjarne Stroustrup`s code guidelines. Note that...
Welcome to the LHCb Computing page Do you have a question and are looking for an answer? Try the Q A website Project Management Computing Project Management...
Publications relating to LHCb computing This page is being populated, if you find items missing please add them. This page contains lists of presentations and conference...
DAST shift report from the DAST shifter Updates Date Update 04/03/2016 Most issues were related to Ganga. A few issues with warning messages, persistency...
Welcome to the LHCb Alignment Web Page Alignment Subtasks Former conveners: Lucia Grillo, Agnieszka Dziurda, Francesco Polci, Giulio Dujany Alignment software...
The LHCb online event display The LHCb online event display shows the pp collisions in the LHCb detector in both three and two dimensions. The display is based on...
Using Ganga to send FLUKA jobs on the Grid Before you start You need to have a valid Grid Certificate installed at the Linux machine, and be a member of the LHCb...
Neural Network Tools in Brunel Neural Network Tools (NNTools) in Brunel Neural Networks (NN) can be built on a set of input variables using various software...
Pattern Recognition The pattern recognition code is designed to associate hits in one or more detector to a single track. Pattern recognition in 2D (r z plane) in...
LHCb Physics Event Model Task Force Page Members Vanya Belyaev Marco Cattaneo Gloria Corti (Event Model Review) Ulrik Egede Chris Jones...
Information on this twiki page will eventually be propagated back to the main page and this page will be removed. The plan is that a single version of PIDCalib can...
LHCbPR Performance and Regression Tests Introduction LHCbPR is responsible for systematically running the regression tests, collecting and comparing results of these...
ParasNaik 2017 07 03 RICH mirror alignment and the High Level Trigger Introduction Ideas and implementations For maximal optimization at Brunel (i.e. Reconstruction...
LHCb Software Training: Printing and Job options The purpose of this exercise is to make you familiar with using job options to configure algorithms, and with the...
LHCb Software Training: Printing and Job options The purpose of this exercise is to make you familiar with using job options to configure algorithms, and with the...
SSB pages explained This twiki provideds detailed information about the `Site Status Board (SSB)` pages where needed. SSB is a tool provided by CERN/IT for monitoring...
The ST TELL1 Emulator This page contains information about the ST TELL1 Emulator and how to use it within the Vetra environment (v7r0 and up). The current version...
The ST TELL1 Emulator OLD Warning: This page describes an old version of the ST TELL1 Emulator. For the most recent version go here This page contains information...
RicardoVazquezGomez 2015 07 20 Stripping23 FAQ If you want to create a new stripping line, you should look here. The general way of testing the lines is described...
RicardoVazquezGomez 2015 10 16 The S24 is the restripping of the 25ns data after the technical stop from begining of September 2015. The DaVinci version to be used...
Stripping tips for Liasons and Stripping authors General structure The LHCbStripping is the procedure used to pass from raw data, which should never been accessed...
Vertex and PV Refitting in Stripping Vertex Fitter Since S21 the default vertex fitter is LoKi::VertexFitter. OfflineVertexFitter is deprecated and unmaintained therefore...
Track Reconstruction in the LHCb Inner Tracker Abstract A generic algorithm for tracking in the Inner Tracker is described. The performance of the algorithm is studied...
ST Vetra Analysis This page contains all information about the STVetraAnalysis package v3r2 version, for older version please read LHCbSTVetraAnalysisOld. If you...
This is the help page for ST Vetra Analysis for version v3r1 and before. For latest version please read LHCbSTVetraAnalysis. If you want to know how to build a ST...
Project VIPER The intention of this package is to provide examples of how to work with the IT code in python and ROOT. The scripts are not well maintained and will...
The TESLA project Mailing list: lhcb tesla Charge To process the output of the Hlt from the Turbo stream for physics analysis. Streams In 2016, streams were introduced...
Welcome to the Track Fitting task pages Mission Statement: Track Parameters and Covariance Matrix for Online and Offline Applications The Tracking task include...
General LHCb Tracking Wiki Page Run 1 2 Performance WG The tracking alignment WG has been merged with the PID CO WG to form the Run 1 2 Performance WG. Please...
Tracking strategies used in LHCb Introduction Tracks are found by different tracking strategies. A tracking strategy is mainly concerned with how tracks are found...
Welcome to the web pages of the LHCb Track Model Task Force Charter The charter, as defined by the Computing Technical Board, is to review the new implementation...
Transportservice Discussion Timing measurements by Ivan Belyaev Making the simple intrumentation of TranpsortSvc with the trivial n tuple: /afs/cern.ch/user...
LHCb trigger twiki pages General information Meetings : We have our weekly trigger meeting on Friday afternoon at 15:00 in 2 R 30. See the indico listing....
HLT Online Reference Guide Keywords: Setting the accept rate via PVSS,Beam Gas,Brunel output monitoring,Conditions DB snapshots,Reading Online Conditions,Event Filter...
Releases based on LHCb v24r0 (and Gaudi v20r1, LCG 55) This page documents releases based on LHCb v24r0. Do not edit , the content of these releases is frozen. LHCb...
Releases based on LHCb v25r0 (and Gaudi v20r2, LCG 55a) This page documents releases based on LHCb v25r0. Do not edit , the content of these releases is frozen....
Releases based on LHCb v25r1 (and Gaudi v20r2, LCG 55a) This page documents releases based on LHCb v25r1. Do not edit , the content of these releases is frozen....
Releases based on LHCb v25r2 (and Gaudi v20r2, LCG 55a) This page documents releases based on LHCb v25r2. Do not edit , the content of these releases is frozen....
Releases based on LHCb v26r0 (and Gaudi v20r3, LCG 55b) This page documents releases based on LHCb v26r0. Do not edit , the content of these releases is frozen....
Releases based on LHCb v26r1 (and Gaudi v20r4, LCG 55c) This page documents releases based on LHCb v26r1. Do not edit , the content of these releases is frozen....
Releases based on LHCb v26r2 (and Gaudi v20r4, LCG 55c) This page documents releases based on LHCb v26r2. Do not edit , the content of these releases is frozen....
Releases based on LHCb v26r3 (and Gaudi v20r4, LCG 55c) This page documents releases based on LHCb v26r3. Do not edit , the content of these releases is frozen....
Releases based on LHCb v27r0 (and Gaudi v21r0, LCG 56) This page documents releases based on LHCb v27r0. Do not edit , the content of these releases is frozen. LHCb...
Releases based on LHCb v27r1 (and Gaudi v21r1, LCG 56a) This page documents releases based on LHCb v27r1. Do not edit , the content of these releases is frozen....
Releases based on LHCb v27r4 (and Gaudi v21r3, LCG 56b) This page documents releases based on LHCb v27r4. Do not edit , the content of these releases is frozen....
Releases based on LHCb v27r5 (and Gaudi v21r3, LCG 56b) This page documents releases based on LHCb v27r5. Do not edit , the content of these releases is frozen....
Releases based on LHCb v28r0 (and Gaudi v21r4, LCG 56c) This page documents releases based on LHCb v28r0. Do not edit , the content of these releases is frozen....
Releases based on LHCb v28r1 (and Gaudi v21r5, LCG 57) This page documents releases based on LHCb v28r1. Do not edit , the content of these releases is frozen. LHCb...
Releases based on LHCb v28r2 (and Gaudi v21r6, LCG 57a) This page documents releases based on LHCb v28r2. Do not edit , the content of these releases is frozen....
Releases based on LHCb v28r3 (and Gaudi v21r6, LCG 57a) This page documents releases based on LHCb v28r3. Do not edit , the content of these releases is frozen....
Releases based on LHCb v28r4 (and Gaudi v21r6, LCG 57a) This page documents releases based on LHCb v28r4. Do not edit , the content of these releases is frozen....
Releases based on LHCb v29r0 (and Gaudi v21r7, LCG 58) This page documents releases based on LHCb v29r0. Do not edit , the content of these releases is frozen. LHCb...
Releases based on LHCb v29r1 (and Gaudi v21r7p1, LCG 58a) This page documents releases based on LHCb v29r1. Do not edit , the content of these releases is frozen...
Releases based on LHCb v29r2 (and Gaudi v21r7p1, LCG 58a) This page documents releases based on LHCb v29r2. Do not edit , the content of these releases is frozen...
Releases based on LHCb v30r0 (and Gaudi v21r8, LCG 58b) This page documents releases based on LHCb v30r0. Do not edit , the content of these releases is frozen....
Releases based on LHCb v30r1 (and Gaudi v21r8, LCG 58b) Releases based on LHCb v30r1 stack are mainly documented in the tag collector. This page documents releases...
LoKi`s Array Particle Functions ACHI2DOCA It is an alias for ADOCACHI2 ACHI2V It is an alias for AVCHI2 ACHI2VX It is an alias for AVCHI2...
Recommended LoKi::Hybrid Functors This lists the filters recommended for use in the HLT and the selections. See DaVinciTutorial4 for a hands on tutorial. A longer...
LoKi User Guide For completeness see also LoKi Reference Manual Abstract LoKi is a package for the simple and user friendly data analysis. LoKi is based on architecture...
LoKi`s Particle Functions This lists a lot of the LoKi Functors. See DaVinciTutorial4 for a hands on tutorial. A list with examples of use in CombineParticles can...
LHCb LoKi Tutorial: Getting started with LoKi This hands on tutorial is an introduction to LoKi C toolkit for easy and friendly physics analysis. The purpose...
This documentation is a documentation for Gaudi based project maintainers. If you are only a user or a developer, you should have a look at GaudiCMake315Configuration...
General processing path To create a new Hlt2 line for the Turbo stream, you will need to make sure the line contains the particles in the event (and calculates all...
General processing path This tutorial is intended for those wishing to run the trigger from threshold settings. This makes life easier when developing Hlt2 lines as...
Making ntuples from Turbo data This page shows you how to configure DaVinci to process Turbo data. Due to the historical development cycle of the Turbo processing...
General comment Do we want to request the generation in DC06 of event samples WITH CP violation at least for Bd ? Who is intrested in starting/continuing the work...
MC Monitoring Tools HistDB The HistDB is an SQL based database storing the display settings and configurations for all histograms and pages. It can be used also for...
MC Monitoring Tools OnlineHistDB The Online HistDB can be used to store the display settings and configurations for all histograms and pages (see later). The database...
MDF Files How to convert DST to MDF? Python way (new) I used the following python file within a Panoramix v17r1 environment. (You need the latest aka `head` version...
Current status of the activity on the BK Participants: Philippe, Zoltan, Elisa Synchronization of the 2 DB The procedure is the following: first, we will...
MicroDST The purpose of the MicroDST is to select and store a sub set of data of interest from a file in the LHCb DST format, in a smaller file of the same format...
Using TisTos software with MicroDSTs (DaVinci v26r3p2 or higher) Introduction If you are looking for code example how to use TupleToolTISTOS in DecayTreeTupe with...
SevdaEsen 2016 04 20 Meetings (short summaries by Yasmine) 2012 12 05 : Seventeenth meeting : Agenda Olivier summarized the studies needed for the ST viability...
There is a new framework for Multi Variate Selections in DaVinci! Please have a look at DaVinciTutorial9 to learn how it works. Any new selections, please use the...
MultiVariateSelections The purpose of these selections in LHCb is to improve the data selection performance compared to those obtained from applying a set of cuts...
Muon Alignment Links to past presentations detector spatial alignment with 2016 collision data Stefania Vecchi June, 6th 2016 detector spatial alignment...
Welcome to the LHCb Muon DAQ analysis page This page contains an introduction for reading and analyzing Muon real data acquired during the commissioning phase...
Welcome to the LHCb Muon DAQ Monitoring page This page contains directions on how to access Muon Online Monitoring Histograms LHCb Online Page Useful links...
This page contains a brief description of the muon system event model. Introduction Before entering into details of the muon event model let #146;us remind briefly...
Muon Hadron Alley Parameters (Hugo Ruiz) Note that all IP and IPS cuts are refered to the minimum value to any primary vertex. The numbers between parentheses inform...
LHCb MuonID General informations This page is intended to be a repository of documents, discussions and meetings about the LHCb Muon Identification Procedure Mailing...
The VeloDataMonitor package a simple analysis example. As of Vetra v5r1 the noise and pedestal monitoring of VeloFullDataMonitor becomes obsolete and the package...
OT Mono layer alignment Introduction In his thesis Alexander Kozlinkiy has shown that the OT sense wires are not perfectly centered in the straws. See for example...
OTrCosmics Offline Software Event generation To simulate events we have implemented a simple cosmics generator in Gauss. It currently resides in Gen/ParticleGuns...
Panoramix : F.A.Q. and First Manual Welcome to the first Panoramix Wiki page. This page is to be used as a F.A.Q. where everybody can add any question or answer he...
Particle MC truth matching This page is intended for documentation related to association between LHCb::Particles and LHCb::MCParticles in DaVinci. It describes new...
Particle primary vertex association The motivation for LHCb::Particle to primary vertex (PV) association is outlined in this by Patrick Koppenburg. This wiki aims...
Particle Selection Toolkit Introduction This wiki explains the use of new python wrapper classes that are intended to simplify both the writing and use of particle...
PatDownstream Starting from a seed track in the T stations, the algorithm will attempt to add TT hits to produce downstream tracks, e.g. for charged decay products...
PatForward PatForward is a pattern recognition algorithm designed to find long tracks. It starts from Velo seeds, adds the corresponding T station track segments and...
PatMatch PatMatch is an algorithm to match Velo and T station tracks to produce long tracks from both segments. Its main focus is speed. The algorithm is documented...
PatSeeding PatSeeding is a standalone reconstruction algorithm for the LHCb main tracker. It is documented in the following places: reconstruction and $K^0 S...
PatVeloGeneralTracking This algorithm can run on unused Velo hits, typically after the standard Velo pattern recognition has done its job, to find tracks missed by...
PatVeloGeneric A generic pattern recognition algorithm for the Velo. It is documented in: VELO Pattern Recognition See also: VeloGenericTracking the...
PatVeloOpenTracking PatVeloOpenTracking is a general purpose tracking algorithm for the Velo which only requires hits on a track to be on consecutive sensors. A search...
PatVeloRTracking This algorithm searches for tracks in rz projection in the vertex detector. It is documented in the following note: Pattern Recognition ManuelSchiller...
PatVeloSpaceTracking Given Velo tracks in rz projection, this algorithm searches for tracks in full 3D in the vertex detector. It is documented in the following note...
PatVeloTT PatVeloTT starts from Velo seeds, adding matching TT hits to produce tracks which do not make it through the magnet (i.e. low momentum tracks that are deflected...
ROOT and POOL persistency, IO and IOHelper This twiki describes the tools to make the migration of POOL to ROOT in LHCb as was needed some time ago. These days all...
Tracking Physics Book Preparation page The resource to help you prepare for the physics book Deadlines: First drafts of notes expected 15th February...
!!! PAGE NO LONGER MAINTAINED. KEPT FOR HISTORICAL REASONS !!! Physics Analysis Software Packages Introduction The table below lists all packages used in physics...
PIDCalib Packages This page provides information on how to use the package for extracting PID performance results from both collision data and MC. Questions or comments...
List of old problems Major problems transferring to GridKA. Johan will chase it (gone away?) Problems registering a file in LFC using VOMS groups...
A list of talks at Tracking, Alignment and Vertexing conferences can be found in this table Year Conference Speaker Title Talk/Poster...
How to access to Monte Carlo Truth information for the Recontructed Primary Vertices ? This section describes the tool for extraction of the Monte Carlo truth information...
MariuszWitek 12 Jun 2008 Primary Vertex reconstruction Introduction There are 3 PV reconstruction algorithms PatPV2D Used in HLT1, based on 2D VELO tracks...
ProtoParticle Filters Introduction ProtoParticle filters are a set of Gaudi tools for the LHCb software framework that implement the core functionality of applying...
Last Published Publisher TWikiGuest Date 18 Aug 2008 16:50 {PublishContrib}{Dir} /afs/cern.ch/project/twiki/production/twiki/export/ {PublishContrib}{URL} https...
RawEvent The RAW data format. Contents What is the RawEvent? The RawEvent can be considered as a mini event store, which contains heavily packed, optimised data...
ReDecay, a method to re use the underlying events This page is intended to collect practical information on using ReDecay. This includes both the a quick overview...
Primary vertex re fitting Introduction This wiki is about the process of obtaining and safely using primary vertices that have been re fitted excluding tracks from...
track refitting Refit Tracks in Stripping Location (TrackRefitting) A short example is given below of how to use the DaVinciTrackRefitting package to refit tracks...
Rerunning MuonID in DaVinci IF YOU ARE USING DAVINCI v22r0p2 OR HIGHER YOU DON`T NEED TO READ THIS When running default DaVinci setting, muon id info is already stored...
LHCb Stripping FAQ Re Stripping of MC in MicroDST format Motivation Why would you want to re strip your MicroDST? You want to change your stripping cuts for...
RichAlgBase Class Description The base class for all RICH algorithms. Currently uses the GaudiAlgorithm extension to the standard Algorithm class. Doxygen Documentation...
LHCb RICH Data Quality This page summarises the efforts of the RICH Data Quality with instructions for the RICH and the RICH DQ piquet. The RICH DQ piquet can be done...
RichKernel Package This packages contains common low level classes, interfaces and enumerations used through out the RICH software. Enumerations The package provides...
RichMoniAlgBase Class Description The base class for all RICH monitoring algorithms. Identical functionality as RichAlgBase, but derives from GaudiTupleAlg instead...
RichPID Class Summary Contains the Particle Identification information for the RICH detectors. Data members are : A smart reference to the associated track...
Cherenkov ring finding package The package RichRecTemplateRings is in the Rich/RichRecTemplateRings subdirectory directory of the REC packge which is part...
RICH Software Packages This page details the various CMT packages in the RICH software. Introduction Like all Gaudi and LHCb specific packages, the RICH code is partitioned...
Combined PID in DC04 Basic Information on DC04 Combined PID The technique used for combining the information from the different subdetectors was presented during...
OBSOLETE, please see the MakeLineForTurbo and MakeLineForTurboSimplified tutorials Disclaimer This tutorial is intended to get started with the general steps of the...
Work package : Simulation and Reconstruction WP convener : Tim Head Mailing list : lhcb upgrade ft software #64;cernNOSPAMPLEASE.ch Scope Develops an accurate...
Charged Charmless Two Body Selection Page These page contain the information about the charmless two body B decay selection strategy, implementation and results....
How to exclude sensors from the pattern recognition and how to use the VELO as a beam telescope. DISCLAIMER: PatVeloFilterClusters does not remove sensors from PR...
A simplified geometry for track fitting Introduction To correct for energy loss and multiple scattering on a charged particle trajectory, the LHCb track fit talks...
AndreiTsaregorodtsev 15 Mar 2009 Site Failure Recovery This page is describing procedures to be applied in case of the site failures. In the following is a brief...
Working with LHCb Software and SLC6 SLC6 on lxplus.cern.ch On the 6th of May 2013 , the CERN IT Department changed the lxplus.cern.ch alias to point to the new...
63 64 65 68 83 72 79 67 69 73 75 70 81 66 71 74 76 77 78 80 82 63 Bu2JpsiK...
Stripping coordinator`s cheatsheet What is an rDST When data is collected from the LHCb detector, the raw data will be transferred to the LHCb associated Tier 1 sites...
LHCb Stripping FAQ Which DaVinci version tags to use? For the vast majority of user analysis (making ntuples from stripping output, etc), you should use the latest...
Isolation Tools in the LHCb Stripping framework Contents Introduction Isolating your signal decay from other tracks in LHCb has been shown to help reject partially...
Stripping framework Contents Introduction The current stripping framework is based on the code of Hlt2Lines and follows its concept. Stripping framework consists...
Tested with DV v30r2p1, on Run 111473, PreReco13b test sample provided by M. Cattaneo: /castor/cern.ch/user/j/jhe/Stripping18/111473 0000000110 FastVeloFix.dst...
Tested with DV v30r2p1, on Run 111473, PreReco13b test sample provided by M. Cattaneo: /castor/cern.ch/user/j/jhe/Stripping18/111473 0000000110 FastVeloFix.dst...
Tested with DV v30r3, on Run 111473, PreReco13b test sample provided by M. Cattaneo: /castor/cern.ch/user/j/jhe/Stripping18/111473 0000000110 FastVeloFix.dst with...
Performance and recent developments of the real time track reconstruction and alignment of the LHCb detector Conference: 2017, 5 12 July 2017, Venice, Italy The LHCb...
Step 1. Setting up a release directory for running the software All alignment related code is combined in the `Alignment` project. For running the TAlignment algorithm...
Since contribution is on volunteer basis people included here, are the people who expressed willing and/or have been working in the related topics. WORK IN PROGRESS...
Task Force on Core Software (TFCS) The Task Force on Core Software (TFCS) was formed in April 2016 to tackle the issues related to the framework, event model, non...
Softwares Pedestal runs The software resides in SVN, and can be obtained using: svn co svn ssh://svn.cern.ch/reps/uttestbeamsoft Data should be stored on eos...
TbUT analysis software This page provides information about the TbUT package. The software is a part of the project. The main aim of this software is to perform whole...
TCK Trigger Configuration Key The HLT is configured via a unique key, named Trigger Configuration Key (TCK), that defines the sequence of algorithms, and the cuts...
TCK Presenter Most of the stuff here is probably outdated. The webpage of the TCK Presenter is http://lbtckpresenter.cern.ch/ Introduction The TCK Presenter is a...
TestBeamOct2017 This section will summarize the main documents, informations and results of the October 2017 testbeam. A fiber based telescope was installed in the...
Test Driven Development in LHCb Test Driven Development (tdd) is a software development process that relies on the repetition of a very short development cycle, based...
Using TESTisTos Tool in Python This page illustrates full power of TESTisTos tool. Such extensive example may be confusing. For a simple example how to use this tool...
Timing Studies, i.e, how many Kalmans can be squeezed into one HLT sequence... This page explains how to study the impact of increasing the number of Kalman filter...
Elaborated example of DaVinci algorithm using TriggerTisTos tool THIS EXAMPLE IS OUT OF DATE AND NEEDS UPDATING PLEASE SEE PYTHON EXAMPLE INSTEAD AND DO EQUIVALENT...
TisTosParticleTagger DVAlgorithm This algorithm was first added to Phys/TisTosTobbing in v5r0 (use DaVinci v25r7 and higher). Chris Thomas and Vava contributed early...
TrackCalib Package TrackCalib was created as tool for creating tracking efficiency correction tables allowing for user defined track quality cuts, binning and variable...
TrackEventCloneKiller This is our standard clone killer algorithm which is run at the end of the pattern recognition in every standard reconstruction job. It works...
TrackHistory A track must provide provenance in the form of a history. This history should provide: which algorithm found the track (initially) which algorithm...
Tracking for 2015 Target Verify the performance of LHCb Tracking algorithms with the new beam conditions in 2015 (%$\sqrt{s}$% 13TeV, bunch spacing 25,50 ns) and...
Open tracking and alignment tasks These tasks are part of the LS1 list. If you interested in any of these tasks please contact Silvia Borghi, Michel De Cian and Patrick...
TrackMatchVeloSeed TrackMatchVeloSeed is a pattern recognition algorithm that tries to match a track in the Velo and a track in the T stations to form a long track...
This is page where you can put your inputs/comments/... For new topics, please start a new item, and for comments to existing items, please add subitems. Fits for...
TrackSeedFind Another standalone track reconstruction algorithm for the T stations. Apparently, it is rarely used by the community, so I can`t say much. It is documented...
A Track is mainly an object required to navigate to the following items: the representation of the trajectory a charged particle followed throughout the experiment...
TrAnalyse TrAnalyse is the code that monitors the efficiency and ghost rate of tracks found and fitted by other routines. The output is a table of the form:...
TrChecker This is the code that generates histograms that detail the performance of the tracking algorithms. It by default monitors the Best tracks which are the...
Trigger Code How to run the HLT? Environment: The LHCb software is organized in projects and each project is divided into packages. In order to be...
TriggerTisTos tool Some parts of documentation below are not up to date. Please see at Trigger Stripping meeting on Nov 1, 2010 for the most recent report on TisTos...
TsaSeeding Tsa seeding is a standalone track reconstruction algorithm for the T stations. It is documented in the following LHCb notes: Track Reconstruction in...
TupleTools and Configurables An FAQ and reminder about Configurables, specifically focussing on TupleTools. Prerequisites: The gaudi framework handles our job configuration...
Run 2 Turbo PV refitting issue The issue In order to obtain an unbiased (or less biased) measure of the displacement of a particle wrt a PV (eg, flight distance,...
TWeeder info for LHCb Total Number of topics: 2912 29 Topics updated during the last 7 days Days Web Topic Date S7 LHCb RichTestBeamMiniDaq...
Presentation on Mask Clustering for Velo by Daniel Campora Need to define clustering efficiency Standard clustering algorithm for Velo finds all clusters...
Various announcements by Dorothea Roundtable: Brij: downstream tracking, interested in porting the project from CUDA to openCL Constantin: Kalman...
Hit Decoding and Track Reconstruction for the UT Decoding Alberto Ottimo works on this (summer 2018). Tracking Placido Fernandez Declara isolated the current VeloUT...
Principal Reviewer Callot Code Location Package Project Functionality VeloLite/VeloLiteMoniSim Gauss monitoring of MCHits Det/VeloLiteDet...
AIM What we need: 1. a new transient representation of a V0 as a two track object for use in HLT and Brunel. The LHCb::RecVertex is not sufficient because it does...
Vectorize Source Code Brief introduction to Vectorization General Vectorization is nothing but parallel processing of multiple data. According to taxonomy it belongs...
ACDC Analysis The is the main coordination page for analysis of ACDC Data. Please feel free to edit/update this page: Adding your name next to the analysis...
The Velo Cluster and Track Monitor packages Latest update on 19 July 2006 by Aras Papadelis Introduction Material from the Software training day on 27/6 2006 can...
VeloGeneralTracking is a pattern recognition algorithm to use R and Phi clusters in the same module to make 3D points, which are combined to make tracks. It was written...
VeloGenericTracking A generic tracking algorithm. The R and Phi clusters are linked into tracks if they can be fitted with a 3D straight line. This method is slower...
The Velo/VeloFullDataMonitor package This package has been provided for the analysis of non zero suppressed data (NZS) within VETRA. On this page we introduce its...
VELO Online Monitoring Wish List This page is meant to be a scratch area for collecting ideas what to monitor and how. So everybody should feel free to add some ideas...
VeloSimMoni Produces monitoring histograms for checking silicon simulation. Produces an ouptut table when running boole. This monitors the MCVeloFE (front end...
FIR filtering FIR filtering theory is described in presentation but other documents and presentation from Doris and Kazu are available at search: FIR Which FIR is...
Computing the x talk Description and definitions The x talk is defined as the amount of signal from one channel (the signal channel ) spreading into another channel...
Vertex Fitters OfflineVertexFitter Developer: Yuehong Xie As the name suggests, this is a vertex fitter used for secondary vertex fitting in the offline data analysis...
New VETRA v6r0 Default configuration The latest edition of the Vetra project consists of NZS data analysis for both Velo and ST. This Twiki is devoted to the Velo...
How to find out which TCK was used for a given dataset You write a small python script like this one: from Gaudi.Configuration import from Configurables import...
THIS PAGE IS OBSOLETE. JuanPalacios 17 Nov 2005 XmlConditions page The XmlConditions package is designed to hold a persistent, local copy of conditions for use...
Measurement of jet production in Z0/ #947; #8727; #8594; #956; #956; #8722; events at LHCb in #8730;s 7 TeV pp collisions Note:this result is superseded by the paper...
Number of topics: 296

 
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