Measurement of electrons from heavy-flavour hadron decays in pp collisions at &[root]s = 13 TeV with ALICE

ORAL

Abstract

Due to their large mass, heavy-flavour (charm and beauty) quarks are mostly produced in initial hard scattering processes on a shorter time scale than the formation time of the hot and dense colour-deconfined QCD matter, the so called Quark-Gluon-Plasma (QGP). When heavy quarks go through the QGP medium, they lose energy by radiative and collisional processes. Therefore, they are an effective probe to investigate the properties of the QGP.

 In this presentation, the measurement of the yield of electrons from heavy-flavour hadron decays in pp collisions at √s = 13 TeV performed by ALICE Collaboration will be shown. The yield has been measured up to 12 GeV/c. The high pT region (pT >12 GeV/c) will be accessible in the future by using EMCal detector and analyzing the full pp 13 TeV statistic. Thus the electrons can be measured with EMCal trigger up to higher pT region at mid-rapidity(| η |<0.6) by analyzing this data. The Inner Tracking System(ITS) and Time Projection Chamber(TPC), ElectroMagnetic Calorimeter(EMCal) detectors are used for the electron identification. The yield is obtained after subtracting the main background, hadron contaminations and photonic electrons, from the yield of the inclusive electrons. The results will be compared with a FONLL QCD prediction.

Presenters

  • Toma Suzuki

    Physics Society of Japan

Authors

  • Toma Suzuki

    Physics Society of Japan