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Signal region and background region correlation function comparison in pp at sqrt(s) = 5.02 TeV

Figure Information
Scope: PWG
PWG-GA (Photons, Neutral Mesons)
Energy
5.02 TeV
System
p-p
Figure Group
Paper Figures: Measurement of isolated photon–hadron correlations in pp and p–Pb collisions at 5TeV
Figure Image
Figure image (.eps)
2020-06-01-pp_SR_BR_Overlay_pT_0.eps
Figure image (.pdf)
2020-06-01-2020-06-01-pp_SR_BR_Overlay_pT_0.pdf
Figure Caption

Isolated–hadron signal region (black circles) and background region (grey squares) correlations in pp collisions at sqrt(s) = 5.02 TeV as measured by the ALICE detector. The shower signal region photons correspond to isolated clusters with sigma2long< 0.3, while the shower background region photons correspond to isolated clusters with sigma2long > 0.4. The vertical bars represent statistical uncertainty only. The horizontal bars represent the bin width in |delta phi|.

Detail description

The correlation functions in pp in the shower shape signal region and shower shape background region. The background region correlations have been scaled by (1-P), where P is the purity . Then the background region correlations will be subtracted from the signal region correlations in order to obtain the subtracted correlation functions. 

  • Keywords: isolated photon-hadron correlations 
  • Fig 3 in paper
  • Data sample: LHC13def, LHC17q
  • Reco pass: pass4, pass1_CENT_wSDD
  • MC: gamma Jet LHC17g6a1, LHC18b10a(b)_calo ; JetJet: LHC17g6a3, LHC18l2a(b)