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SUMMARY:Electron Identification Performance of the ALICE Experiment
DTSTART;VALUE=DATE-TIME:20261028T140500Z
DTEND;VALUE=DATE-TIME:20261028T142000Z
DTSTAMP;VALUE=DATE-TIME:20261030T205459Z
UID:indico-contribution-6334@cern.ch
DESCRIPTION:Speakers: Yeghishe Hambardzumyan (MIPT)\nHigh-precision measur
 ements of charmonium states in proton-proton collisions at the ALICE exper
 iment at LHC necessitate robust electron identification and background sup
 pression. A comprehensive analysis of electron identification performance 
 within the ALICE experiment is presented\, utilizing Run 3 proton-proton c
 ollision data at $\\sqrt{s}= 13.6$ TeV. Electron identification is based o
 n specific ionization energy loss in the Time Projection Chamber (TPC) in 
 conjunction with time-of-flight measurements from the TOF detector. A comp
 lementary method involving the matching of TPC tracks to electromagnetic c
 lusters in the Photon Spectrometer (PHOS) enhances the electron identifica
 tion. The efficiency of electron identification is evaluated using the dat
 a-driven tag-and-probe algorithm using $J/\\psi \\to e^+e^-$ decays. Data 
 from the PHOS detector is used for estimation of residual hadron contamina
 tion of the electron sample. The reported electron ID performance is essen
 tial for charmonium measurement in ongoing ALICE Run 3 analyses.\n\nhttps:
 //indico.particle.mephi.ru/event/626/contributions/6334/
LOCATION: Conference Hall 5
URL:https://indico.particle.mephi.ru/event/626/contributions/6334/
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