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Strange, charm and bottom hadrons flow in pp, pPb and PbPb collisions

We present the elliptic azimuthal anisotropy coefficient ($v_2$) of the identified strange hadrons, $\mathrm{K_{S}^{0}}$ and $\Lambda$, in pPb and PbPb collisions at 5.02 TeV at mid-rapidity ($\lvert y \rvert <1$), and the heavy-flavor hadrons, D$^0$ and $\mathrm{J/\psi}$, in pPb at 8.16 TeV and...

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Autor principal: Pradhan, Raghunath
Lenguaje:eng
Publicado: 2021
Materias:
Acceso en línea:http://cds.cern.ch/record/2797705
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author Pradhan, Raghunath
author_facet Pradhan, Raghunath
author_sort Pradhan, Raghunath
collection CERN
description We present the elliptic azimuthal anisotropy coefficient ($v_2$) of the identified strange hadrons, $\mathrm{K_{S}^{0}}$ and $\Lambda$, in pPb and PbPb collisions at 5.02 TeV at mid-rapidity ($\lvert y \rvert <1$), and the heavy-flavor hadrons, D$^0$ and $\mathrm{J/\psi}$, in pPb at 8.16 TeV and high-multiplicity pp at 13 TeV and $\mathrm{\Upsilon(1S)}$ and $\mathrm{\Upsilon(2S)}$, in PbPb collisions at 5.02 TeV. The data samples were collected with the CMS experiment at the LHC. The $v_2$ coefficients of identified strange hadrons were measured using the scalar product and multi-particle cumulant methods as a function of $p_{T}$ for different centralities in PbPb collisions and event multiplicities in pPb collisions and compared with inclusive charged hadrons as well as the hydrodynamic calculations with initial conditions. The $v_2$ coefficients of D$^{0}$ and $\mathrm{J/\psi}$ mesons in pPb collisions are measured using the long-range two-particle correlation technique and compared with the results from color glass condensate (CGC) model. The positive $v_2$ results of D$^0$ and $\mathrm{J/\psi}$ in high multiplicity pp and pPb collisions suggest the collectivity of charm quarks in small system. For the first time, collectivity of b hadrons are studied via non-prompt D$^0$ using long-range two-particle correlation technique and $\mathrm{\Upsilon(1S)}$ and $\mathrm{\Upsilon(2S)}$ mesons using scalar product method. The $v_2$ results for $\mathrm{\Upsilon(1S)}$ meson as a function of $p_{T}$ is compared with theoretical predictions from five different approaches. 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-27977052022-11-15T13:38:37Zhttp://cds.cern.ch/record/2797705engPradhan, RaghunathStrange, charm and bottom hadrons flow in pp, pPb and PbPb collisionsDetectors and Experimental TechniquesWe present the elliptic azimuthal anisotropy coefficient ($v_2$) of the identified strange hadrons, $\mathrm{K_{S}^{0}}$ and $\Lambda$, in pPb and PbPb collisions at 5.02 TeV at mid-rapidity ($\lvert y \rvert <1$), and the heavy-flavor hadrons, D$^0$ and $\mathrm{J/\psi}$, in pPb at 8.16 TeV and high-multiplicity pp at 13 TeV and $\mathrm{\Upsilon(1S)}$ and $\mathrm{\Upsilon(2S)}$, in PbPb collisions at 5.02 TeV. The data samples were collected with the CMS experiment at the LHC. The $v_2$ coefficients of identified strange hadrons were measured using the scalar product and multi-particle cumulant methods as a function of $p_{T}$ for different centralities in PbPb collisions and event multiplicities in pPb collisions and compared with inclusive charged hadrons as well as the hydrodynamic calculations with initial conditions. The $v_2$ coefficients of D$^{0}$ and $\mathrm{J/\psi}$ mesons in pPb collisions are measured using the long-range two-particle correlation technique and compared with the results from color glass condensate (CGC) model. The positive $v_2$ results of D$^0$ and $\mathrm{J/\psi}$ in high multiplicity pp and pPb collisions suggest the collectivity of charm quarks in small system. For the first time, collectivity of b hadrons are studied via non-prompt D$^0$ using long-range two-particle correlation technique and $\mathrm{\Upsilon(1S)}$ and $\mathrm{\Upsilon(2S)}$ mesons using scalar product method. The $v_2$ results for $\mathrm{\Upsilon(1S)}$ meson as a function of $p_{T}$ is compared with theoretical predictions from five different approaches. These measurements provide insights into the origin of the collective phenomena in small and large systems.CMS-CR-2021-248oai:cds.cern.ch:27977052021-11-10
spellingShingle Detectors and Experimental Techniques
Pradhan, Raghunath
Strange, charm and bottom hadrons flow in pp, pPb and PbPb collisions
title Strange, charm and bottom hadrons flow in pp, pPb and PbPb collisions
title_full Strange, charm and bottom hadrons flow in pp, pPb and PbPb collisions
title_fullStr Strange, charm and bottom hadrons flow in pp, pPb and PbPb collisions
title_full_unstemmed Strange, charm and bottom hadrons flow in pp, pPb and PbPb collisions
title_short Strange, charm and bottom hadrons flow in pp, pPb and PbPb collisions
title_sort strange, charm and bottom hadrons flow in pp, ppb and pbpb collisions
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/2797705
work_keys_str_mv AT pradhanraghunath strangecharmandbottomhadronsflowinppppbandpbpbcollisions