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Title: Modeling of heavy-flavor pair correlations in Au-Au collisions at 200 A GeV at the BNL Relativistic Heavy Ion Collider

Journal Article · · Physical Review C, Nuclear Physics
 [1];  [2];  [3]
  1. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Nuclear Science Division; Duke Univ., Durham, NC (United States). Dept. of Physics
  2. China Central Normal Univ., Wuhan (China). Inst. of Particle Physics and Key Lab. of Quark and Lepton Physics (MOE)
  3. Duke Univ., Durham, NC (United States). Dept. of Physics

In this paper, we study the nuclear modification of angular and momentum correlations between heavy quark pairs in ultrarelativistic heavy-ion collisions. The evolution of heavy quarks inside the thermalized medium is described via a modified Langevin approach that incorporates both elastic and inelastic interactions with the medium constituents. The spacetime evolution of the fireball is obtained from a (2+1)-dimensional viscous hydrodynamics simulation. The hadronization of heavy quarks is performed by utilizing a hybrid model of fragmentation and coalescence. Our results show that the nuclear modification of the transverse momentum imbalance of D $$\overline{D}$$ pairs reflects the total energy loss experienced by the heavy quarks and may help us probe specific regions of the medium. The angular correlation of heavy-flavor pairs, especially in the low- to intermediate-transverse-momentum regime, is sensitive to the detailed energy-loss mechanism of heavy quarks inside the quark-gluon plasma.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Nuclear Physics (NP); Open Science Grid (OSG); JET Collaboration; National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
AC02-05CH11231; FG02-05ER41367; 11375072
OSTI ID:
1429347
Alternate ID(s):
OSTI ID: 1226672
Journal Information:
Physical Review C, Nuclear Physics, Vol. 92, Issue 5; Related Information: © 2015 American Physical Society.; ISSN 0556-2813
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 28 works
Citation information provided by
Web of Science

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