期刊论文

Wang, Xin-Nian

英文

PHYSICAL REVIEW LETTERS

0031-9007

2020

125

12

122301

10.1103/PhysRevLett.125.122301

We thank T. Luo and W. Ke for discussions, and W. Chen and Z. Yang for providing clvisc hydro events. This work is supported by NSFC under Grants No. 11935007, No. 11221504, and No. 11890714, by DOE under Contract No. DE-AC02-05CH11231, and by NSF under Grant No. ACI-1550228 within the JETSCAPE Collaboration. Computations are performed at DOE NERSC and NSC of CCNU.

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Transverse momentum broadening and energy loss of a propagating parton are dictated by the space-time profile of the jet transport coefficient q^ in a dense QCD medium. The spatial gradient of q^ perpendicular to the propagation direction can lead to a drift and asymmetry in parton transverse momentum distribution. Such an asymmetry depends on both the spatial position along the transverse gradient and path length of a propagating parton as shown by numerical solutions of the Boltzmann transport in the simplified form of a drift-diffusion equation. In high-energy heavy-ion collisions, this asy...