TY  - JOUR
A1  - Shi, Wei
A1  - Zha, Wangmei
A1  - Chen, Baoyi
T1  - Charmonium coherent photoproduction and hadroproduction with effects of quark gluon plasma
T2  - Physics Letters B
N2  - We study the charmonium coherent photoproduction and hadroproduction consistently with modifications from both cold and hot nuclear matters. The strong electromagnetic fields from fast moving nucleus interact with the other target nucleus, producing abundant charmonium in the extremely low transverse momentum region pT<0.1 GeV/c. This results in significative enhancement of J/ψ nuclear modification factor in semi-central and peripheral collisions. In the middle pT region such as pT<3∼5 GeV/c, J/ψ final yield is dominated by the combination process of single charm and anti-charm quarks moving in the deconfined matter, c+c¯→J/ψ+g. In the higher pT region, J/ψ production are mainly from parton initial hard scatterings at the beginning of nucleus–nucleus collisions and decay of B hadrons. We include all of these production mechanisms and explain the experimental data well in different colliding centralities and transverse momentum regions.
Y1  - 2017
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54784
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-547844
SN  - 1873-2445
SN  - 0370-2693
VL  - 777.2018
SP  - 399
EP  - 405
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  -