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Collectivity of strange, charm, and bottom hadrons in pPb and PbPb with CMS

<!--HTML-->We present the elliptic azimuthal anisotropy coefficient ($v_2$) of the identified strange hadrons ($K_{S}^{0}$ and $\Lambda$) in pPb and PbPb collisions at 5.02 TeV, and the heavy-flavor hadrons ( J/psi, D$^0$) in pPb at 8.16 TeV and high-multiplicity pp at 13 TeV, using data colle...

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Detalles Bibliográficos
Autor principal: Pradhan, Raghunath
Lenguaje:eng
Publicado: 2021
Materias:
Acceso en línea:http://cds.cern.ch/record/2749455
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author Pradhan, Raghunath
author_facet Pradhan, Raghunath
author_sort Pradhan, Raghunath
collection CERN
description <!--HTML-->We present the elliptic azimuthal anisotropy coefficient ($v_2$) of the identified strange hadrons ($K_{S}^{0}$ and $\Lambda$) in pPb and PbPb collisions at 5.02 TeV, and the heavy-flavor hadrons ( J/psi, D$^0$) in pPb at 8.16 TeV and high-multiplicity pp at 13 TeV, using data collected by the CMS experiment at the LHC. The $v_2$ values of identified strange hadrons were measured for the first time using the scalar product and multi-particle method as a function of $p_{T}$ for different centralities in PbPb and event multiplicities in pPb collisions. The results are compared to the inclusive charged hadrons as well as the hydrodynamic model calculations with different initial state conditions. The positive $v_2$ results for charm hadrons in high-multiplicity pp and pPb collisions suggest the collectivity of charm quarks. The $v_2$ values of open heavy flavor hadrons and J/psi mesons in pp and pPb collisions are measured using the long-range two-particle correlation technique. The collectivity of b hadrons is also studied via non-prompt D$^0$ mesons (decay products of bottom hadrons) for the first time. The flavor ordering is indicated for $p_{\mathrm{T}}$ from $2-5$ GeV. The multiplicity dependence of prompt D$^0$ mesons shows the collectivity diminishes towards the small event activity regime. These measurements provide insights into the origin of the collective phenomena in small and large systems.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2021
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spelling cern-27494552022-11-02T22:26:19Zhttp://cds.cern.ch/record/2749455engPradhan, RaghunathCollectivity of strange, charm, and bottom hadrons in pPb and PbPb with CMSInitial Stages 2021Conferences<!--HTML-->We present the elliptic azimuthal anisotropy coefficient ($v_2$) of the identified strange hadrons ($K_{S}^{0}$ and $\Lambda$) in pPb and PbPb collisions at 5.02 TeV, and the heavy-flavor hadrons ( J/psi, D$^0$) in pPb at 8.16 TeV and high-multiplicity pp at 13 TeV, using data collected by the CMS experiment at the LHC. The $v_2$ values of identified strange hadrons were measured for the first time using the scalar product and multi-particle method as a function of $p_{T}$ for different centralities in PbPb and event multiplicities in pPb collisions. The results are compared to the inclusive charged hadrons as well as the hydrodynamic model calculations with different initial state conditions. The positive $v_2$ results for charm hadrons in high-multiplicity pp and pPb collisions suggest the collectivity of charm quarks. The $v_2$ values of open heavy flavor hadrons and J/psi mesons in pp and pPb collisions are measured using the long-range two-particle correlation technique. The collectivity of b hadrons is also studied via non-prompt D$^0$ mesons (decay products of bottom hadrons) for the first time. The flavor ordering is indicated for $p_{\mathrm{T}}$ from $2-5$ GeV. The multiplicity dependence of prompt D$^0$ mesons shows the collectivity diminishes towards the small event activity regime. These measurements provide insights into the origin of the collective phenomena in small and large systems.oai:cds.cern.ch:27494552021
spellingShingle Conferences
Pradhan, Raghunath
Collectivity of strange, charm, and bottom hadrons in pPb and PbPb with CMS
title Collectivity of strange, charm, and bottom hadrons in pPb and PbPb with CMS
title_full Collectivity of strange, charm, and bottom hadrons in pPb and PbPb with CMS
title_fullStr Collectivity of strange, charm, and bottom hadrons in pPb and PbPb with CMS
title_full_unstemmed Collectivity of strange, charm, and bottom hadrons in pPb and PbPb with CMS
title_short Collectivity of strange, charm, and bottom hadrons in pPb and PbPb with CMS
title_sort collectivity of strange, charm, and bottom hadrons in ppb and pbpb with cms
topic Conferences
url http://cds.cern.ch/record/2749455
work_keys_str_mv AT pradhanraghunath collectivityofstrangecharmandbottomhadronsinppbandpbpbwithcms
AT pradhanraghunath initialstages2021