WorkLog

To Be Done

• Proceedings for Moriond/UCL
• PRD - correction curves for RDF (toward trv pt sum nchg )
• MCTuning - compare ATLAs tune with CDF data
• LAr

Important Dates

BND School - 13th of September to Thursday, the 24th of September. August - RDF@CERN

June 29 to July 3 2009, a workshop on "Detector Understanding with First LHC Data" will take place at DESY, Hamburg.

Long Night of Science - 19th June

BBQ - 12th May

PYTHIA

Compile:

$ g77 -c pythiaxxxx.f

$ g77 -o mycode mycode.f pythiaxxxx.o

$ ./mycode > output.out

Lines longer than 72 characters? $ f77 -ffixed-line-length-0 fortran-code.f

To link with LHAPDF and compile:

Comment out: PDFSET, STRUCTM and STRUCTP

gfortran ue_dy2.f pythia-6.4.20.f /atlas/users/dkar/pythia/pythia6420/lhapdf/lib/libLHAPDF.a -o ue_dy -lstdc++

MSTP(51)=10042 (for CTEQ6L) MSTP(52)=2

Needed? export LHAPATH=/atlas/users/dkar/pythia/pythia6420/lhapdf/share/lhapdf/PDFsets export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/atlas/users/dkar/pythia/pythia6420/lhapdf/lib

Mid April 2009

Long Update

MC Tuning

Plans to use modified leading order PDF. Check why ATLAS tune (PYTHIA 6.402, CTEQ 6.01) does not match CDF DY UE data, hence tune A/AW. Try with MSTP(95)=2.

Reasons? ISR, Color parameter nearest neigbor?

Tunes - Hendrik (329) 0.22? Skands(320)0.16, RDF 0.25?

UE Study

Charged Jet, Calo Jets...(in CMS) MInbias study?( pthard = 0, all QCD), ptmax upto 3 GeV same distributions direction set by highest pt charged.

4th March, 2009

Physics Analysis

ATLAS UE studies: Two subgroups in Standard Model Physics group - QCD and W/Z+jets. Contact persons: Alessandro Tricoli (W/Z), Arthur Moraes (QCD) Jason Nielsen. Proposed topic in W/Z+jets group: Measurements of the Underlying Event in W/Z+jets events.

Look at ATLAS SM indico pages. Meeting. Mailing list.

Service Work

Look at LAr week talks.

Resources: Offline> LArCal> LArDigi... MC's which have trigger simulation, i.e "containers" corresponding LArRAWChannel, TrigTower, TileRow etc.

Read:

• Readout from FEBs to L1 system.
• Have to get FebID corresponding to missing FEB. Match it with TriggerTower, reconstruct Calocell.
• FEB, LSB, EMB, TBB, How energy is reconstructed layer by layer in main readout. Energy estimate in Level 1. Difference? Ratio? Correlation?
• Problems: Noise, Timing, Gaines recovery?

3rd March, 2009

Proposed Service work topic: using the L1 information to recover energy information for Feb not sending data with Guillaume Unal and Chaouki Boulahouache. More information needed...

Can log into lxplus machines - ran the test Helloworld job.

Questions about Athena/ATLAS analysis: Where are the MC samples?

Steps for me to would be:

• Locate MC samples (AOD?) for generator level and (reconstructed?) detector level.
• Write UE analysis code, start with DY. (Copy CDF code in local machine)
• Once that is successful,
• Compare with CDF data?
• Compare with tunes? (Generate MC's?)

Then JET UE (Jet algo at ATLAS?) and Z+ Jets. Find out status of ATLAS UE tunes. At UCL workshop?

2nd March, 2009

Arrive at CERN. Registered as "user". Got access card. Got computer accounts. Still not a member of atlas-current-physicists list, so can not access Physics workbook.

For grid account, visited: https://pktwiki.phy.tu-dresden.de/twiki/bin/view/IKTP/AtlasRegistr Filled out the form, got a pdf certificate. What next? Physically verify passport? Where?

Week of 23rd to 28th February, 2009

More of the same.

Week of 16th-20st February, 2009

Joined TU Dresden, Getting all paperwork done...

-- DeepakKar - 03 Mar 2009