TY - JOUR
T1 - Sensitivity study with a D and B mesons modular simulation code of heavy flavor RAA and azimuthal anisotropies based on beam energy, initial conditions, hadronization, and suppression mechanisms
AU - Katz, Roland
AU - Prado, Caio A.G.
AU - Noronha-Hostler, Jacquelyn
AU - Noronha, Jorge
AU - Suaide, Alexandre A.P.
N1 - We wish to thank Prof. Pol-Bernard Gossiaux and Shanshan Cao for their fruitful discussions and help. The authors thank Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for support. R.K. is supported by the Region Pays de la Loire (France) under Contract No. 2015-08473. C.A.G.P. is supported by the NSFC under Grant No. 11521064, MOST of China under Project No. 2014CB845404. J.N.H. acknowledges the support of the Alfred P. Sloan Foundation, support from the U.S. DOE Nuclear Science Grant No. DE-SC0019175, and the Office of Advanced Research Computing (OARC) at Rutgers, the State University of New Jersey, for providing access to the Amarel cluster and associated research computing resources that have contributed to the results reported here. This work made use of the Illinois Campus Cluster, a computing resource that is operated by the Illinois Campus Cluster Program (ICCP) in conjunction with the National Center for Supercomputing Applications (NCSA) and which is supported by funds from the University of Illinois at Urbana–Champaign. J.N. is partially supported by CNPq Grant No. 306795/2017-5 and FAPESP Grant No. 2017/05685-2.
PY - 2020/8
Y1 - 2020/8
N2 - 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 D and 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 D and B mesons RAA, v2, v3, and v4 as well as multiparticle cumulants, in AuAu collisions at sNN=200GeV and PbPb collisions at sNN=2.76TeV and sNN=5.02TeV, and compare them to the available experimental data. The v2{4}/v2{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. We study the influence that different initial conditions and the implementation of heavy-light quark coalescence has on our results.
AB - 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 D and 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 D and B mesons RAA, v2, v3, and v4 as well as multiparticle cumulants, in AuAu collisions at sNN=200GeV and PbPb collisions at sNN=2.76TeV and sNN=5.02TeV, and compare them to the available experimental data. The v2{4}/v2{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. We study the influence that different initial conditions and the implementation of heavy-light quark coalescence has on our results.
UR - http://www.scopus.com/inward/record.url?scp=85090003806&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85090003806&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.102.024906
DO - 10.1103/PhysRevC.102.024906
M3 - Article
AN - SCOPUS:85090003806
SN - 2469-9985
VL - 102
JO - Physical Review C
JF - Physical Review C
IS - 2
M1 - 024906
ER -