Survival probability of prompt and non-prompt dielectron pairs in pp collisions at $\sqrt{s}$ = 13.6 TeV in Run 3 with high interaction rate data and a comparison to Run 2

Scope: PWG
PWG-EM (Electromagnetic probes)
Energy
13.6 TeV
System
p-p
Figure Image
Figure image (.eps)
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Figure Caption

Survival probability of prompt and non-prompt dielectron pairs dependent on the separation power in the DCA xy, z, 3D components. Selected in the mass range of 0.08 < $m_{ee}$ < 0.14 GeV/$c^2$ (prompt) and 1.1 < $m_{ee}$ < 2.7 GeV/$c^2$ (non-prompt),  in pp collisions at $\sqrt{s} = 13.6$ and a comparison to Run 2 with upper and lower limits.

Detail description

Survival probability of prompt and non-prompt dielectron pairs dependent on the separation power in the DCA xy, z, 3D components. Selected in the mass range of 0.08 < $m_{ee}$ < 0.14 GeV/$c^2$ (prompt) and 1.1 < $m_{ee}$ < 2.7 GeV/$c^2$ (non-prompt),  in pp collisions at $\sqrt{s} = 13.6$ and a comparison to Run 2 with upper and lower limits.

In pp collisions, at 13.6 TeV, $B$ = 0.5 T with $p_{T}$ > 0.2 GeV/$c$, $|\eta| = 0.8$ and $2 < \varphi_{V} < \pi$ in the high interaction rate data. (LHC22o_pass4_minBias)

Tracking cuts:
 
kIsSPDfirst, 0.5, 1.5
kTPCchi2, 0.0, 4.0
kITSchi2, 0.0, 5.0
kITSncls, 4.5, 7.5
kTPCnclsCR, 80.0, 161.
kTPCncls, 90.0, 170.

Primary Track: 

kTrackDCAxy, -3.0, 3.0
kTrackDCAz, -3.0, 3.0

PID selection: 
TPC PID:

kTPCnSigmaEl_Corr, -3., 3., acc.
kTPCnSigmaPi_Corr, -99., 3.5, rej.
kTPCnSigmaKa, -3., 3., rej.
kTPCnSigmaPr_Corr, -3., 3., rej.

TOF PID: (recover)

kTPCnSigmaEl_Corr, -3., 3., acc.
kTPCnSigmaPi_Corr, -99., 3.5, rej.
kTOFnSigmaEl, -3., 3., rej. (pT > 0.3 GeV/c)

using PIDTPCFull (Bethe-Bloch) + post calibration of DQ framework