Cosmic Simulation in rel 14: Samples

Overview

• The first production of simulated cosmic is starting now. for info on this please see CosmicSimFirstProduction wiki
• These samples are produced in 14.4.0 AtlasProduction on the batch system, although simulation step is also available with Simulation/SimuJobTransforms/scripts/csc_cosmics_sim_trf.py
• What we used for these samples is now included in SimuJobTransforms-00-07-99, which needs tags G4CosmicFilter-00-00-12 and CosmicGenerator-00-00-34.

• Tags for digitization: CommissionUtils-00-00-21, PixelDigitization-00-07-13-02, SiDigitization-03-05-04, SCT_Digitization-00-11-13 . jobOptions testdig.py attached.
• The size of the ATLAS-GEO samples will be ~50k events when first stage finished.
• To access the data use STAGE_SVCCLASS=atlasgroupdisk
• Two filters: CosmicGenerator constrains the production vertex and direction of generator-level tracks, G4CosmicFilter requires simulated hits inside a certain volume - more details on the settings for the generator can be found in the attached jobOptions_ConfigCosmicProd.py. Note that the CosmicGenerator settings for pixelbarrel-filtered samples are optimized for pixel studies and may not be appropriate for other detector studies.
• Some limitations:
  • Several questions lately: note that the mu+/mu- ratio in simulation (1.5) is not the same as in data. The simulation flux calculation uses this reference: A. Dar , Phys. Rev. Letters 51, 227 (1983)
  • Timing is wrong for the muons, trigger will not work correctly.
• Old twikis available through this link

List of geometries used:

• ATLAS-GEO-03-00-00 (aligned, Solenoid On, Toroids On)
• ATLAS-GEONF-04-00-00 (aligned, no magn field)
• ATLAS-GEO-04-00-00 (aligned, Solenoid off, Toroids On)

List of simulation filter volumes used:

• Muon (all of Atlas, geant volume is MUONQ2::MUONQ2)
• TRT barrel (geant volume is TRT::BarrelOuterSupport)
• Pixel barrel (has to have hits inside geant volumes TRT::BarrelOuterSupport and Pixel::Pixel)

• new inner detector volume: (greant volume is OR of TRT::BarrelOuterSupport, TRT::WheelA, TRT::WheelB )
• new muon volume: (geant volume is CALO::CALO)

Samples

Production with Muon Volume

ATLAS-GEO-03-00-00:

• 5000 events at /castor/cern.ch/grid/atlas/atlasgroupdisk/proj-simcos/rel14/ATLAS-GEO-03-00-00/dig/dig.muon_B.70000x.root where x=1-5

• Test with new muon volume: 1873 events at castor/cern.ch/grid/atlas/atlasgroupdisk/proj-simcos/rel14/ATLAS-GEO-03-00-00/dig/dig.muonentry.700000.root and dig.muonentry.700005.root

ATLAS-GEONF-04-00-00:

• so far only a few thousand test events. Pixel hit timing not correct for these. Can be found at ~gencomm/w0/cosmicSim_rel14/NoField/dig.muon*.root .

Test with new Inner detector volume

• /castor/cern.ch/grid/atlas/atlasgroupdisk/proj-simcos/rel14/ATLAS-GEO-03-00-00/dig/dig.trt_B.900010.root, dig.trt_B.900014.root, and dig.trt_B.900018.root

Production with TRT barrel Volume

ATLAS-GEO-03-00-00:

• 58666 events at /castor/cern.ch/grid/atlas/atlasgroupdisk/proj-simcos/rel14/ATLAS-GEO-03-00-00/dig/dig.GEO-03-TRTBarrel.*.root
• The corresponding hits files can be found in the ATLAS-GEO-03-00-00/sim directory

ATLAS-GEONF-04-00-00:

• 50327 events at /castor/cern.ch/grid/atlas/atlasgroupdisk/proj-simcos/rel14/ATLAS-GEONF-04-00-00/dig.trtbarrel.200*.root
• The corresponding hits files can be found in the ATLAS-GEONF-04-00-00/hits directory

ATLAS-GEO-04-00-00:

• 57756 events at /castor/cern.ch/grid/atlas/atlasgroupdisk/proj-simcos/rel14/ATLAS-GEO-04-00-00/dig
• corresponding hits files can be seen in ATLAS-GEO-04-00-00/sim directory

Production with pixel barrel Volume

ATLAS-GEO-03-00-00:

• Approx 46k events can be found at: /castor/cern.ch/grid/atlas/atlasgroupdisk/proj-simcos/rel14/ATLAS-GEO-03-00-00/dig/dig.pixelbarrel_B.400*.root
• The corresponding hits files can be found in the ATLAS-GEO-03-00-00/sim directory

ATLAS-GEONF-04-00-00:

• Approx 48k events at /castor/cern.ch/grid/atlas/atlasgroupdisk/proj-simcos/rel14/ATLAS-GEONF-04-00-00/dig.pixelbarrel.500*.root
• The corresponding hits files can be found in the ATLAS-GEONF-04-00-00/hits directory

ATLAS-GEO-04-00-00:

• 55368 events. Files are in /castor/cern.ch/grid/atlas/atlasgroupdisk/proj-simcos/rel14/ATLAS-GEO-04-00-00/dig/dig.pixelbarrel_B.600*.root
• The corresponding hits files can be found in the ATLAS-GEO-04-00-00/sim directory

Instructions on how to run simulation / digitization / reconstruction

other useful info

• we can see how full our castor diskpool is by looking: here our limit is 5TB

-- ElseLytken - 23 Feb 2009

• testdig.py.txt: example of digitization jobOptions

• jobOptions_ConfigCosmicProd.py.txt: Cosmic generator settings