Daily Log

Weekly Goal ( 26 ~ 30 )

  • Continuing figure out jet-pairing methods to measure W pair mass from 4jets (Fully hadronic channel)

Weekly Goal ( 19 ~ 24 )

  • Figuring out Jet-pairing methods to measure W mass from 4Jets (Fully hadronic channel)
  • Reviewing the aplanarity cut codes and making it work well
  • Completing presentation slides to show the work progress so far

Nov 26, 2007

  • Sent an e-mail to Filip to discuss about what we have done and what we have to do

Nov 22, 2007

  • Obtained the correct aplanarity distribution plot after normalization of eigenvalues of sphericity tensor
aplanarity_20071122.gif
  • Error occured while trying to submit CRAB job for tt0j samples
  • Pre-finished ppt and Dr. Chung suggested that we should discuss about it tomorrow
    • Located in /afs/cern.ch/user/s/sahn/public/study_ttbar.ppt

Nov 20 ~ 21, 2007

  • Almost completed the ttbar study presentation slides : what have been done so far and plans what to do
  • Found the problem related to calcuate eigenvalues of sphericity tensor
    • Have to normalise the three eigenvalues to 1 : l1 + l2 + l3 = 1
  • According to the outputs from tt0j samples
    • The appearances of plots related to centrality, sum of non-leading jets Et and etc, are good, but somewhat different from CMS Note

centrality_20071121.gif sumet3_20071121.gif

Nov 19, 2007

  • Submitted CRAB Job for tt0j samples (now still running) without the aplanarity cuts
    • To compare the effect of the cuts
    • To confirm the signal of ttbar with little background
    • To figure out the appearances of the very hadronic ttbar signal
  • Started making some ppt slides for presenting my work progress so far
  • Found an interesting talk at Review meeting QCD/EWK/TOP
  • Studied fundamental concepts of particle physics by consulting the summer student lecture programme 2007

-- SangUnAhn - 19 Nov 2007

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Topic revision: r3 - 2008-01-30 - SangUnAhn
 
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