Measurement of electrons from charm and beauty hadron decays in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 8.16\,$TeV with ALICE

In this proceedings, we report new measurement of electrons from charm and beauty hadron decays in p-Pb collisions at \(\sqrt{s_{\text{NN}}} = 8.16\) TeV as a function of transverse momentum (p_T). The nuclear modification factor and cross section ratio with different collision energies are measured...

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Detalles Bibliográficos
Autor principal: Kawana, Daichi
Lenguaje:eng
Publicado: 2019
Materias:
hep-ex
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.7566/JPSCP.26.024014
http://cds.cern.ch/record/2653711
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author Kawana, Daichi
author_facet Kawana, Daichi
author_sort Kawana, Daichi
collection CERN
description In this proceedings, we report new measurement of electrons from charm and beauty hadron decays in p-Pb collisions at \(\sqrt{s_{\text{NN}}} = 8.16\) TeV as a function of transverse momentum (p_T). The nuclear modification factor and cross section ratio with different collision energies are measured. Both results imply cold nuclear matter effects on heavy-flavour production in p-Pb collisions are small enough to be negligible and there is no significant collision energy dependence between \(\sqrt{s_{\text{NN}}} = 8.16\) and 5.02 TeV.
id cern-2653711
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2019
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spelling cern-26537112022-01-28T03:03:08Zdoi:10.7566/JPSCP.26.024014http://cds.cern.ch/record/2653711engKawana, DaichiMeasurement of electrons from charm and beauty hadron decays in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 8.16\,$TeV with ALICEhep-exParticle Physics - ExperimentIn this proceedings, we report new measurement of electrons from charm and beauty hadron decays in p-Pb collisions at \(\sqrt{s_{\text{NN}}} = 8.16\) TeV as a function of transverse momentum (p_T). The nuclear modification factor and cross section ratio with different collision energies are measured. Both results imply cold nuclear matter effects on heavy-flavour production in p-Pb collisions are small enough to be negligible and there is no significant collision energy dependence between \(\sqrt{s_{\text{NN}}} = 8.16\) and 5.02 TeV.Lattice Quantum Chromodynamics (QCD) calculation predicts that a colour-deconfined QCD matter, Quark-Gluon Plasma (QGP), is formed at high temperature and 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 and interaction with the QGP 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 via heavy-flavour decays electrons. High-$p_{\rm{T}}$ electrons are especially interesting because they mainly originate from beauty hadrons. We report the $p_{\rm{T}}$ dependence of the nuclear modification factor ($R_{\rm{pPb}}$) and ratio of cross section of heavy-flavour decays electrons in p-Pb collisions with different collision energies, $\sqrt{s_{\mathrm{NN}}} = 8.16\,$TeV and $\sqrt{s_{\mathrm{NN}}} = 5.02\,$TeV.arXiv:1901.03496oai:cds.cern.ch:26537112019
spellingShingle hep-ex
Particle Physics - Experiment
Kawana, Daichi
Measurement of electrons from charm and beauty hadron decays in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 8.16\,$TeV with ALICE
title Measurement of electrons from charm and beauty hadron decays in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 8.16\,$TeV with ALICE
title_full Measurement of electrons from charm and beauty hadron decays in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 8.16\,$TeV with ALICE
title_fullStr Measurement of electrons from charm and beauty hadron decays in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 8.16\,$TeV with ALICE
title_full_unstemmed Measurement of electrons from charm and beauty hadron decays in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 8.16\,$TeV with ALICE
title_short Measurement of electrons from charm and beauty hadron decays in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 8.16\,$TeV with ALICE
title_sort measurement of electrons from charm and beauty hadron decays in p-pb collisions at $\sqrt{s_{\mathrm{nn}}} = 8.16\,$tev with alice
topic hep-ex
Particle Physics - Experiment
url https://dx.doi.org/10.7566/JPSCP.26.024014
http://cds.cern.ch/record/2653711
work_keys_str_mv AT kawanadaichi measurementofelectronsfromcharmandbeautyhadrondecaysinppbcollisionsatsqrtsmathrmnn816tevwithalice

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