Scope: PWG
PWG-DQ (Dileptons and Quarkonia)
Energy
5.36 TeV
System
p-p
Figure Image
Figure image (.eps)
Figure image (.pdf)
Figure Caption
inclusive J/psi production at midrapidity in pp collisions at 5.36 TeV,
signal extraction of inclsuive J/psi production at 4 < pT < 5 GeV/c using like-sign method.
Detail description
Data set : LHC24ap pass1,
event selection :
* |vtx_z| < 10 cm
* sel8 (minimum bias in Run3)
track selection :
* pT > 1GeV/c, |eta| < 0.9
* TPCncls > 90, TPC chi2 < 4
* ITS chi2 < 5, ITSisAny (at least of one hit among the inner barrel ITS)
* |DCA_xy| < 0.5 cm, |DCA_z| < 0.5cm
PID selection :
* |nsigma TPC electron| < 3,
* nsigma TPC proton > 2.5 (at p_IN < 3 GeV/c) , nsigma TPC proton > 2 (at p_IN > 3 GeV/c)
* nsigma TPC pion > 2.5 (at p_IN < 3 GeV/c) , nsigma TPC pion > 2 (at p_IN > 3 GeV/c)