Gluon contribution to open heavy-meson production in heavy-ion collisions

Cao, Shanshan; Qin, Guang-You; Wang, Xin-Nian

doi:10.1103/PhysRevC.93.024912

Title: Gluon contribution to open heavy-meson production in heavy-ion collisions

Journal Article · Mon Feb 22 00:00:00 EST 2016 · Physical Review C

DOI:https://doi.org/10.1103/PhysRevC.93.024912· OSTI ID:1429349

Cao, Shanshan ^[1]; Qin, Guang-You ^[2]; Wang, Xin-Nian ^[3]

Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Nuclear Science Division
China Central Normal Univ., Wuhan (China). Inst. of Particle Physics and Key Lab. of Quark and Lepton Physics (MOE)
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Nuclear Science Division; China Central Normal Univ., Wuhan (China). Inst. of Particle Physics and Key Lab. of Quark and Lepton Physics (MOE)

A sizable contribution to heavy-quark production in high-energy hadronic and nuclear collisions comes from heavy quark-antiquark pair production from gluon splitting during the parton shower evolution. Here, we investigate the effect of gluon-medium interaction on open heavy flavor spectra in ultrarelativistic heavy-ion collisions. The interaction of hard gluons and heavy quarks with the hot QCD medium is simulated by utilizing a Langevin transport model that simultaneously incorporates contributions from collisional and radiative processes. It is found that, while the gluon splitting channel has quite an important contribution to the single D-meson production cross section, its influence on the final heavy-meson nuclear modification turns out to be quite modest because the average lifetime of hard gluons is short before splitting into heavy-quark-antiquark pairs during the evolution and propagation of the parton shower.

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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); Duke Univ., Durham, NC (United States); JET Collaboration; National Natural Science Foundation of China (NSFC); Ministry of Science and Technology (MOST) (China); National Basic Research Program of China

Grant/Contract Number:: AC02-05CH11231; 11221504; 11375072; 2014DFG02050; 2014CB845404

OSTI ID:: 1429349

Alternate ID(s):: OSTI ID: 1238700

Journal Information:: Physical Review C, Vol. 93, Issue 2; ISSN 2469-9985

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 6 works

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Title: Gluon contribution to open heavy-meson production in heavy-ion collisions

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