Measurements of azimuthal anisotropy of nonprompt D0 mesons in PbPb collisions at <math altimg="si1.svg"><msqrt><mrow><msub><mrow><mi>s</mi></mrow><mrow><mi mathvariant="normal">NN</mi></mrow></msub></mrow></msqrt><mo linebreak="goodbreak" linebreakstyle="after">=</mo><mn>5.02</mn><mspace width="0.2em"/><mtext>TeV</mtext></math> - INSPIRE

DataBETA

Measurements of azimuthal anisotropy of nonprompt D0 mesons in PbPb collisions at $\sqrt{s_{NN}} = 5.02 TeV$

CMS

Collaboration

Dec 3, 2022

13 pages

Published in:

Phys.Lett.B 850 (2024) 138389

Published: Feb 12, 2024

e-Print:

2212.01636 [nucl-ex]

DOI:

10.1016/j.physletb.2023.138389 (publication)

Report number:

CMS-HIN-21-003,
CERN-EP-2022-219

Experiments:

CERN-LHC-CMS

View in:

reference search18 citations

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Abstract: (Elsevier B.V.)

Measurements of the elliptic (

v_{2}

) and triangular (

v_{3}

) azimuthal anisotropy coefficients are presented for Image 1 mesons produced in Image 2 hadron decays (nonprompt Image 1 mesons) in lead-lead collisions at

\sqrt{s_{NN}} = 5.02 TeV

. The results are compared with previously published charm meson anisotropies measured using prompt Image 1 mesons. The data were collected with the CMS detector in 2018 with an integrated luminosity of 0.58

{nb}^{- 1}

. Azimuthal anisotropy is sensitive to the interactions of quarks with the hot and dense medium created in heavy ion collisions. Comparing results for prompt and nonprompt Image 1 mesons can assist in understanding the mass dependence of these interactions. The nonprompt results show lower magnitudes of

v_{2}

and

v_{3}

and weaker dependences on the meson transverse momentum and collision centrality than those found for prompt Image 1 mesons. The results are in agreement with theoretical predictions that include a mass dependence in the interactions of quarks with the medium.

Note:

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIN-21-003 (CMS Public Pages)

CMS
Heavy ions
QPG
Flow
Heavy flavor
D0: hadroproduction
angular distribution: anisotropy
decay: angular distribution
quark: interaction
D0: transverse momentum

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