Trigger simulation check dijet fraction K0s and lambdas Dominik - - PowerPoint PPT Presentation

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Trigger simulation check dijet fraction K0s and lambdas Dominik - - PowerPoint PPT Presentation

Nov 10, 2023 36 likes •207 views

Trigger simulation check dijet fraction K0s and lambdas Dominik Wrana 08/23/11 Skype meeting 1 Trigger simulation L2 TWO CJET0.5 trigger: BSC Veto: No hit in BSC1 CLC: No hits in CLC Plug Veto: Trigger energy <0.75 GeV for sum of

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08/23/11 Skype meeting 1

Trigger simulation check dijet fraction K0s and lambdas

Dominik Wrana

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08/23/11 Skype meeting 2

Trigger simulation

L2 TWO CJET0.5 trigger: BSC Veto: No hit in BSC1 CLC: No hits in CLC Plug Veto: Trigger energy <0.75 GeV for sum of towers in 0<=ieta<=2 and 21<=ieta<=23. TWO_CJET0.5: two towers with total ET>0.5 GeV in 6<=ieta<=17. (trigger energy → DcasDataBlock in StnTuple) For earlier runs no eta cut! (Jonathan)

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08/23/11 Skype meeting 3

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08/23/11 Skype meeting 4

Cuts

  • Cut on hottest tower energy 0.5 GeV
  • Cut on 2

nd hottest tower energy 0.5 GeV

  • Before cuts: 221815
  • After trigger sim: 170070 23% less!
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08/23/11 Skype meeting 5

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08/23/11 Skype meeting 6

before after

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08/23/11 Skype meeting 7

Crazy tower

  • IPhi = 6
  • TEta = 37
  • Shift: E – 2 GeV

ET – 1.05 GeV

  • After crazy tower cut: 159959 28% less!
  • Before cuts: 221815
  • After trigger sim: 170070 23% less!
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08/23/11 Skype meeting 8

All cuts

  • All GXG without bad run – 306571
  • Trigger 2CJET0.5
  • BSC, CLC, Fplug vetoes
  • Neural Net
  • Trigger sim cut and crazy tower cut
  • Ntracks > 4
  • 1 vertex
  • ET sum > 4 GeV Events left: 159959
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08/23/11 Skype meeting 9

New means dist vs Sum ET

Asymmetric errors - marker on mean

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08/23/11 Skype meeting 10

Dijet fraction

N of events with 2 jets > 5 GeV

  • N of all events

(in |eta| < 2.1)

  • After trigger simulation and crazy tower cuts!
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08/23/11 Skype meeting 11

Asymmetric errors - marker on mean

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08/23/11 Skype meeting 12

K0s and lambdas

  • Using Maria's code:

with colinearity cut <= 3 and decay length > 0.5 Each track in |eta| < 2.1, or |eta| < 1.1, Pt of track > 0.4 GeV/c

  • Other cuts:

2CJET0.5 trigger and gap vetoes, neural net crazy tower and trig sim cuts, Sum ET > 4 GeV, 1 vertex,

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4 tracks 4 tracks

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4 tracks Lambdas

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8 tracks 6 tracks

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12 tracks 10 tracks

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14 tracks Too small statistic!!