eprintid: 25121
rev_number: 15
eprint_status: archive
userid: 3895
dir: disk0/00/02/51/21
datestamp: 2018-07-26 13:06:28
lastmod: 2018-09-03 07:13:53
status_changed: 2018-07-26 13:06:28
type: doctoralThesis
metadata_visibility: show
creators_name: Jiménez Bustamante, Raúl Tonatiuh
title: Inclusive J/psi production at mid-rapidity in Pb-Pb collisions at sqrt(s_NN)= 5.02 TeV
subjects: ddc-530
divisions: i-130200
adv_faculty: af-13
abstract: Charmonium production is a key observable in the study of the properties of the Quark-Gluon Plasma created in ultrarelativistic heavy-ion collisions. The ALICE detector at the LHC provides unique capabilities at mid-rapidity to study charmonium production at low transverse momentum. J/psi mesons can be reconstructed via their dielectron decay channel. This thesis presents the measurement of inclusive J/psi production in Pb-Pb collisions at the center of mass energy of sqrt(s_NN)= 5.02 TeV. Due to the large integrated luminosity collected by ALICE during the second stage of operation of the LHC, the inclusive J/psi nuclear modification factor was measured as a function of centrality and as a function of transverse momentum in different centrality classes. The inclusive J/psi nuclear modification factor exhibits an enhancement towards lower transverse momentum, reaching a value around unity, and a suppression at high transverse momentum where energy-loss mechanisms are dominant. A qualitative description of the measurements is achieved by the models which include a large fraction of J/psi production by recombination. In addition, in peripheral collisions, the observation at mid-rapidity of an excess of J/psi with low transverse momentum (< 150  MeV/c) is presented.
date: 2018
id_scheme: DOI
id_number: 10.11588/heidok.00025121
ppn_swb: 1655397141
own_urn: urn:nbn:de:bsz:16-heidok-251214
date_accepted: 2018-06-22
advisor: HASH(0x561a62879168)
language: eng
bibsort: JIMENEZBUSINCLUSIVEJ2018
full_text_status: public
citation:   Jiménez Bustamante, Raúl Tonatiuh  (2018) Inclusive J/psi production at mid-rapidity in Pb-Pb collisions at sqrt(s_NN)= 5.02 TeV.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/25121/1/PhDThesis_RTJB.pdf