* HI tasks

* DiJets tasks

Jets Shapes in HI task

Hi [high_pt] people. Olga told me to spread in high_pt subgroup the plots with my first results on study of the second moment of pt radial distribution. A comparison of predictions from PYTHIA and PYQUEN is analyzed. Pthat>30GeV, 20k events (definitely need more), only GEN data used at this moment. Comments, questions and suggestions are welcome! * DR2-20kevents.gif:
DR2-correct.gif

DiJets, information, plots for test !!!

  • 1k reco events, CMSSW_3_1_2
  • Pt_hat>30GeV

  • 1) event should contain at least two jets
  • 2) two jets (j1,j2) with highest Et should fly into two separate eta regions: |eta_j1|<1 and |eta_j2|>2 or |eta_j2|<1 and |eta_j1|>2
  • 3) Pt of the central jet should be more than 30GeV
  • 4) Pt of the third jet (if any) should be less than 5 GeV

  • First 3 reco jets without any cuts:
    jets_step1.gif

  • First 2 jets, with a cut for third jet:
    jets_step2.gif

  • First 2 jets, with a cut for leading jet > 30:
    jets_step3.gif

  • First 2 jets, going to separate eta regions:
    jets_step4.gif

Related Topics

  • eta region from -2 to -5:
    minus.gif

  • eta region from 2 to 5:
    plus.gif

  • Correction factors, depending on the value of the cut for the central jet. black-15gev, blue-20gev, red-25gev, green-30gev, pink-35gev, yellow-40gev:
    corr_test.gif

  • Ratio of two correction factors corr(Ptcentralx)/corr(Ptcentral>30). light blue-20gev, red-25gev, blue-35gev, green-40gev:
    ratio_test.gif
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FirstName Stepan
LastName Obraztsov
Email stepobr@cernNOSPAMPLEASE.ch
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Comment SINP MSU, CMS HI Group
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Topic attachments
I Attachment History Action Size Date Who Comment
GIFgif DR2-20kevents.gif r1 manage 11.6 K 2009-06-17 - 14:44 StepanObraztsov  
Unknown file formatcc TestMuL1L2Filter.cc r1 manage 17.5 K 2008-08-21 - 17:45 StepanObraztsov  
Header fileh TestMuL1L2Filter.h r1 manage 2.7 K 2008-08-21 - 17:45 StepanObraztsov  
Texttxt TestMuL1L2Filter_cff.py.txt r1 manage 2.8 K 2008-08-21 - 17:44 StepanObraztsov  
GIFgif corr_test.gif r1 manage 8.8 K 2009-11-13 - 16:28 StepanObraztsov  
GIFgif ratio_test.gif r1 manage 9.7 K 2009-11-13 - 16:29 StepanObraztsov  
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Topic revision: r7 - 2009-11-13 - StepanObraztsov
 
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