Calibration and Alignment

Mission Statement

The CMS Calibration and Alignment (AlCa) team coordinates the design and implementation of the CA infrastructure with the needs of the sub-detector groups.

Organization

Conveners

• Gianluca Cerminara
• Chiara Rovelli
• Stephanie Beauceron - Focus on trigger aspects

Alignment & Calibration Software Coordinators

• Alignment: Andreas Mussgiller
• Calibration: To be found...

Hypernews

• Calibration: https://hypernews.cern.ch/HyperNews/CMS/get/calibrations.html (hn-cms-alca@cernNOSPAMPLEASE.ch)
• (Old Alignment hn now frozen: https://hypernews.cern.ch/HyperNews/CMS/get/alignment.html (hn-cms-alignment@cernNOSPAMPLEASE.ch) )

Meetings

• Take place every other Tuesday at 16:30 CERN time in 40-2A-01.
• Agendas can be found in under Weekly Offline Meetings

DPG and POG Database and HLT Contacts

Calibration:

Sub-Detector	DPG/POG Contact	Database Contact
Pixel tracker	Viktor Veszpremi, Gavril Giurgiu, Urs Langenegger	Gemma Tinti
Strip tracker	Mario Galanti, Loic Quertenmont	Gabriele Benelli
ECAL	Marat Gataullin, Federico Ferri	Jean Fay, Pierre Depasse
HCAL	Willis Sakumoto Igor Vodopianov	Steve Won
Muon DT	Antonio Vilela Pereira	Paolo Ronchese
Muon CSC	Darin Baumgartel	Igor Vorobiev
Muon RPC	Marcello Maggi, Marcello Abbrescia	Michal Szleper,Marcello Maggi
Beamspot	Kevin Burket, Lenny Spiegel, Verena Martinez	Kevin Burket, Lenny Spiegel
L1 conditions	N/A	Werner Sun
JEC	Ricardo Eusebi, Mikko Voutilainen	Kostas Kousoris, Salvatore Rappoccio
Tracker dE/dx templates	Loic quertenmont	Loic Quertenmont
BTag POG	Cristina Ferro	Cristina Ferro
Tau POG	Evan Friis, Christian Veelken	Evan Friis
Muon POG: P scale and resol	Roberto Castello,Javier Santaolalla	Roberto Castello,Javier Santaolalla
Muon POG: MC conditions validation	Andrea Perrotta, Rocio Vilar Cortabitarte
Muon POG: data conditions validation	Alicia Calderon Tazon
EGamma POG	Yurii Maravin, Florian Beaudette
HI Analysis Objects	Edward Wenger,Yetkin Yilmaz	Edward Wenger,Yetkin Yilmaz
Castor	Luiz Martins Mundim Filho

Alignment:

Sub-Detector	DPG Contact	Database Contact
Tracker	Roberto Castello, Gero Flucke	Roberto Castello, Gero Flucke
Muon DT	Luca Scodellaro	Luca Scodellaro
Muon CSC	Yuriy Pakhotin	Yuriy Pakhotin

Trigger Studies Group:

Calibration	Stephanie Beauceron
Alignment	Javier Fernandez

Heavy Ions:

Contact person: Bolek Wyslouch

Possible differences in calibration procedeures between pp and HI are summarized here

Open tasks in Alignment and Calibration

Important: a list of vacant tasks in alignment and calibration that we would like to fill very urgently can be found under CMS.AlCaJobs.

CMSSW Software

Release Planning

The list of new features planned for upcoming releases can be found here: AlCaReleasePlans

Submission of New Tags

To submit new tags for the release the developers are required to:

• queue the tags on the TagCollector
• send an announcement mail to the Software Coordinators and the conveners
• Add the tags to the wiki pages liste below:
  • Alignement: SWGuideTrackAlignmentVersions
  • Calibration: AlCaCalibTagCollector

Release Validation

The list of validation contacts and validation results for each new release can be found here: SWGuideValidationTableAlCa

The Matrix of which RelVals are run for which RelVal samples can be found here: AlCaRecoRelVals

Release Notes

Release notes relating to calibration and alignment can be found at SWGuideCalAliReleaseNotes31X

The original list of deliverables for 31X is here: AlCa31XDeliverables

Global Tags for Conditions

For information on global tags for conditions data, including how to include conditions in a CMSSW job, see SWGuideFrontierConditions

Tag collector for the Global-Tag.

The instructions for the Tag collector for the Global-Tag can be found here

Policy for global tags for data taking

For details see GlobalTagPolicy

Operations and sign-off procedure for constants updates

The operational procedures for proposing constants updates can be found under AlCaConstantsOperations. The protocol of the constants sign-off sessions can be found under
https://twiki.cern.ch/twiki/bin/view/CMS/AlcaSignOff2011
and AlCaSignOff

Mis-calibration and mis-alignment scenarios

Some global tags for MC production apply a smearing of alignment and calibration constants defined through certain mis-calibration and mis-alignment scenarios. Details concerning these scenarios can be found here: AlCaScenarios.

AlCaReco

The set of AlCaRecos to be run for each primary data set during different phases of data taking is documented here: AlCaRecoMatrix.

Trigger Bits for AlCaReco

The set of trigger paths used as input for each AlCaReco skim is documented here: SWGuideAlCaRecoTriggerBits

Tools

• Instructions to use the Offline Drop Box can be found here
• Instructions to upload DQM files to the DQM GUI can be found here
• Intructions to use the crab/WMBS automation can be found here

Documents

• CSA08 Internal Note
• Strategy for alignment and calibration at startup

Calibration and Alignment Workflows

• X-alignment workshop, CERN 24 May 2011.
• Calibration and Alignment Workflows
• Calibration and Alignment Workplans
• Latency of Calibration and Alignment workflows in CRUZET4
• Automation

Tutorials/SWGuide

• Database tutorial for Alca contacts
• Tutorial presentations
• Trigger Paths for Alignment and Calibration
• Testing AlCaReco production using cmsDriver.py
• SWGuide: Using the CAF for calibration and alignment
• How to apply miscalibration and misalignment on the fly in an analysis job
• SWGuide for track based alignment

Conditions Database

• Offline Conditions Database Page

Tutorials/SWGuide

• How to create new conditions objects
• How to upload constants to the conditions database using the PopCon Dropbox
  • Metadata template for the PopCon Dropbox
• Connect strings for accessing ORCON and ORCOFF

Policies and Conventions

• Tag naming convention for conditions data
• Strategy for integration of new/modified CondFormats
• AlCa policy concerning database

Run-Based MC

* Please follow the instructions to prepare conditions tag for the run-based MC production test.

CSA07 and CSA08 Exercises

• Calibration and Alignment in CSA08
• CSA07 Excercises
• Constants description for CSA07 scenario

Other Links

• ECAL Calibrated RecHit Definition
• Frontier Squid deployment instructions and sites.

Old Links

• I/O Requirements for DB workflows
• Older meetings: Meetings Minutes
• November 2005 integration and stress test: CalAliDB Stress Test, Meetings.
• Ecal Peformance Wiki
• Ecal O2O Peformance Wiki
• CMSSW workplan for Calibration: pdf-document
• Software workplan for Alignment: pdf-document
• old wiki of calibration and alignment at FNAL.
• old RoadMap (CA roadmap)
• Milestones

GT Management Tools

here

Review Status

Editor/Reviewer and Date	Comments
Main.lueking - 05 Oct 2005	Page author
OanaBoeriu - 09 Mar 2007	page content last edited
JennyWilliams - 27 March 2007	transferred page into swguide

Responsible: Gianluca Cerminara
Responsible: ChiaraRovelli
Responsible: Marco De Mattia

Last reviewed by: Reviewer