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Simulation in LHCb

This page is intended to hold fast evolving information on the simulation and to allow contributions by all. More information is available from the Gauss official web site that is cross referenced to this site.

Some topics in these pages may be not up to date, in which case they are indicated with Warning, important (May-Be-)Not-Up-To-Date. If you find something is no longer up to date, please tag it as such.

Topic being worked on are indicated with Work in progress, under construction In-Work.

Introduction

Gauss is the LHCb Simulation software, built on the Gaudi Framework.
It consist of a first phase where the events are generated (e.g. pp collisions at 14 TeV) and a second phase where the particles are propagated trough the LHCb detectors.

Coordinators

The Gauss integration and release manager is Gloria Corti. The list of topics and coordinators/contacts is here.

Gauss Web

The main Gauss web page containing release information and links to user guides and tutorials, is here.

Documentation

Current and future developments

Bugs and features

To report new bugs or unexpected feature use the "LHCb Physics software" savannah portal and select "Simulation" as category.

You can also check the list of already known bugs and their status.

Future releases

The current sets are under active development and support:

Deadline for contributions Project/Package Version Details Group Release
15 Oct 2012 - Work in progress, under construction DecFiles v25r17 Definition of new event types for MC11a MC11a 16 Oct 2012
15 Oct 2012 - Work in progress, under construction DecFiles v26r17 Definition of new event types for MC-2012 2012 16 Oct 2012
15 Oct 2012 - Work in progress, under construction Gauss v42r2 Based on LHCb v35r2/Gaudi v23r4, for 2012 early simulation, fixes issues with Herwig++, introduced LbAlpGen and GenTune based on Rivet, New version of pythia8, Support for GDML, improvement of Gauss configurable and support for upgrade 2012 17 Oct 2012
14 Oct 2012 - Work in progress, under construction Geant4 v94r2p5 Build of G4 9.4.p02 on Gaudi v23r4 2012 15 Oct 2012
16 Oct 2012 - Work in progress, under construction Geant4 v95r1 Build of G4 9.5.p01 with dependency on LCG and not Gaudi DEV 16 Oct 2012
24 Oct 2012 - Work in progress, under construction Boole v26r0 Based on LHCb v35r2/Gaudi v23r4, with support for upgrade DEV 26 Oct 2012
30 Oct 2012 - Work in progress, under construction Gauss v43r2 Use new version of Geant4 v95r1, based on LHCb v35r2/Gaudi v23r3, new version of pythia6, lhapdf DEV 10 Oct 2012
18 Oct 2012 - Work in progress, under construction Gauss v44r2 New version of EvtGen v13r0 with interface to tauola++, photos++ and pythia8 DEV 19 Oct 2012
mid Nov 2012 DecFiles v27r0 With new format in decay files for tests with Gauss > v44r2 DEV end Nov 2012

Preview as available in the nightly builds can be found here

See the LHCb Tag Collector for details, status and deadline for contributions for future versions.

Instructions to Gauss Managers to prepare releases

-- Last Update: GloriaCorti - 16-Mar-2012

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Topic revision: r88 - 2012-10-15 - GloriaCorti
 
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