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Sensitivity study with a $$\textit{D}$$ and $$\textit{B}$$ mesons modular simulation code of heavy flavor $$R_{AA}$$ and azimuthal anisotropies based on beam energy, initial conditions, hadronization, and suppression mechanisms

Journal Article · · Physical Review. C
 [1];  [2];  [3];  [3];  [4]
  1. Subatech (Subatomic Physics and Associated Technologies), Nantes (France); Université de Nantes (France); National Institute of Nuclear Physics and Particle Physics (IN2P3), Paris (France); Centre National de la Recherche Scientifique (CNRS) (France); OSTI
  2. Central China Normal University (CCNU), Wuhan (China)
  3. Univ. of Illinois at Urbana-Champaign, IL (United States)
  4. Univ. of Sao Paulo (Brazil)
Heavy flavor probes provide important information about the in-medium properties of the quark-gluon plasma produced in heavy-ion collisions. In this work, we investigate the effects of 2D + 1 event-by-event fluctuating hydrodynamic backgrounds on the nuclear suppression factor and momentum anisotropies of heavy flavor mesons and nonphotonic electrons. Using the state-of-the-art $$\textit{D}$$ and $$\textit{B}$$ mesons modular simulation code (called “DAB-MOD”), we perform a systematic comparison of different transport equations in the same background, including a few energy-loss models—with and without energy-loss fluctuations—and a relativistic Langevin model with different drag parametrizations. We present the resulting $$\textit{D}$$ and $$\textit{B}$$ mesons $$R_{A A}, v_2, v_3,$$ and $$v_4$$ as well as multiparticle cumulants, in AuAu collisions at $$\sqrt{s_{NN}}$$ = 200 GeV and PbPb collisions at $$\sqrt{s_{NN}}$$ = 2.76 TeV and $$\sqrt{s_{NN}}$$ = 5.02 TeV , and compare them to the available experimental data. The $$v_2$${4}/$$v_2$${2} ratio, which is known to be a powerful probe of the initial conditions and flow fluctuations in the soft sector, is also studied in the context of heavy flavor. We also investigate the correlations between the transverse anisotropies of heavy mesons and all charged particles to better understand how heavy quarks couple to the hydrodynamically expanding quark-gluon plasma. Finally, we study the influence that different initial conditions and the implementation of heavy-light quark coalescence has on our results.
Research Organization:
Rutgers Univ., Piscataway, NJ (United States); Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Organization:
Alfred P. Sloan Foundation; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Fundação de Amparo a Pesquisa do Estado de São Paulo (FAPESP); Ministry of Science and Technology of the People’s Republic of China (MOST); National Natural Science Foundation of China (NSFC); Region Pays de la Loire; USDOE; USDOE Office of Science (SC)
Grant/Contract Number:
SC0019175; SC0020633
OSTI ID:
1803607
Alternate ID(s):
OSTI ID: 1836578
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 2 Vol. 102; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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