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Latest results on anisotropy flow of light and heavy flavors in PbPb collisions at CMS

Nonlinear response coefficients of higher-order $v_{n}$ anisotropy harmonics for charged particles, as a function of transverse momentum ($p_{\mathrm{T}}$) and collision centrality, are measured in PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 and 5.02~TeV. The nonlinear response coefficients are obtain...

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Autor principal: Milosevic, Jovan
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.314.0175
http://cds.cern.ch/record/2287644
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author Milosevic, Jovan
author_facet Milosevic, Jovan
author_sort Milosevic, Jovan
collection CERN
description Nonlinear response coefficients of higher-order $v_{n}$ anisotropy harmonics for charged particles, as a function of transverse momentum ($p_{\mathrm{T}}$) and collision centrality, are measured in PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 and 5.02~TeV. The nonlinear response coefficients are obtained using $v_{n}$ harmonics measured with respect to their own plane and the mixed harmonics. The results are compared with hydrodynamic models with different shear viscosity to entropy density ratios and initial conditions. Additionally, the $v_{2}$ and $v_{3}$ anisotropy harmonics of charged particles and prompt $D^{0}$ mesons are measured at $\lvert y \rvert \le$ 1 as a function of $p_{\mathrm{T}}$ and centrality in PbPb data at $\sqrt{s_{NN}}$ = 5.02~TeV collected with the CMS detector. Prompt $D^{0}$ mesons, formed from the $c$ quarks produced via initial hard scatterings, are separated up to a high extent from nonprompt $D^{0}$ mesons emerged from decays of b hadrons. The results indicate that the charm quarks interact strongly with the QGP medium. Comparisons between theoretical models and data provide new constraints on the interaction between charm quarks and the QGP medium.
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spelling cern-22876442021-05-03T07:53:46Zdoi:10.22323/1.314.0175http://cds.cern.ch/record/2287644engMilosevic, JovanLatest results on anisotropy flow of light and heavy flavors in PbPb collisions at CMSDetectors and Experimental TechniquesNonlinear response coefficients of higher-order $v_{n}$ anisotropy harmonics for charged particles, as a function of transverse momentum ($p_{\mathrm{T}}$) and collision centrality, are measured in PbPb collisions at $\sqrt{s_{NN}}$ = 2.76 and 5.02~TeV. The nonlinear response coefficients are obtained using $v_{n}$ harmonics measured with respect to their own plane and the mixed harmonics. The results are compared with hydrodynamic models with different shear viscosity to entropy density ratios and initial conditions. Additionally, the $v_{2}$ and $v_{3}$ anisotropy harmonics of charged particles and prompt $D^{0}$ mesons are measured at $\lvert y \rvert \le$ 1 as a function of $p_{\mathrm{T}}$ and centrality in PbPb data at $\sqrt{s_{NN}}$ = 5.02~TeV collected with the CMS detector. Prompt $D^{0}$ mesons, formed from the $c$ quarks produced via initial hard scatterings, are separated up to a high extent from nonprompt $D^{0}$ mesons emerged from decays of b hadrons. The results indicate that the charm quarks interact strongly with the QGP medium. Comparisons between theoretical models and data provide new constraints on the interaction between charm quarks and the QGP medium.CMS-CR-2017-275oai:cds.cern.ch:22876442017-09-19
spellingShingle Detectors and Experimental Techniques
Milosevic, Jovan
Latest results on anisotropy flow of light and heavy flavors in PbPb collisions at CMS
title Latest results on anisotropy flow of light and heavy flavors in PbPb collisions at CMS
title_full Latest results on anisotropy flow of light and heavy flavors in PbPb collisions at CMS
title_fullStr Latest results on anisotropy flow of light and heavy flavors in PbPb collisions at CMS
title_full_unstemmed Latest results on anisotropy flow of light and heavy flavors in PbPb collisions at CMS
title_short Latest results on anisotropy flow of light and heavy flavors in PbPb collisions at CMS
title_sort latest results on anisotropy flow of light and heavy flavors in pbpb collisions at cms
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.22323/1.314.0175
http://cds.cern.ch/record/2287644
work_keys_str_mv AT milosevicjovan latestresultsonanisotropyflowoflightandheavyflavorsinpbpbcollisionsatcms