13-19 May 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

Probing beauty and charm production in p-Pb collisions with high pT electrons measured with ALICE

15 May 2018, 17:00
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Open heavy flavour Poster Session

Speaker

Daichi Kawana (University of Tsukuba (JP))

Description

Lattice Quantum Chromodynamics (QCD) calculation predicts that a colour-deconfined Quark-Gluon Plasma (QGP) is formed at high temperature and high energy density reached in ultra-relativistic heavy-ion collisions. Heavy quarks (charm and beauty) are mostly produced by initial hard scatterings before the formation of the QGP. Therefore heavy-flavour hadrons are ideal probes to investigate the properties of the hot and dense QCD matter. In Pb-Pb collisions, a strong suppression of the production of heavy-flavour hadrons with high transverse momentum has been observed.
 A deeper understanding of heavy-flavour production in nucleus-nucleus collisions requires detailed studies of Cold Nuclear Matter (CNM) effects in order to clarify the role of initial- and final-state effects on their production. CNM effects include shadowing and/or saturation of partons, energy loss in CNM and $k_{\rm{T}}$-broadening. Such effects on heavy quark production can be studied in proton-nucleus collisions by measuring electrons from heavy-flavour hadron decays.
 The nuclear modification factor of electrons from heavy-flavor hadron decays was measured up to $p_{\rm{T}}$ = 20 GeV/$c$ in p-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 eV. The result suggests that heavy-flavour production in p-Pb collisions scales with the number of binary nucleon-nucleon collisions. High $p_{\rm{T}}$ electrons are particularly interesting because they mainly originate from beauty hadron decays. In this poster we will present new results on the production of electrons from heavy-flavor hadron decays and its nuclear modification factor up to approximately 30 GeV/$c$ in p-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 8.16 TeV collected in LHC-Run2 in 2016.

Collaboration ALICE
Content type Experiment
Centralised submission by Collaboration Presenter name already specified

Primary author

Daichi Kawana (University of Tsukuba (JP))

Presentation Materials