Chemically non-equilibrated QGP and thermal photon elliptic flow

被引：0

作者：

Monnai, Akihiko ^{[1
]}

机构：

[1] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA

来源：

NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS | 2016年 / 276卷

关键词：

Heavy-ion collisions; Quark-gluon plasma; Photons; Chemical equilibration; GLUON DISTRIBUTION-FUNCTIONS; NUCLEAR COLLISIONS; COLLECTIVE FLOW; QUARK; QCD;

D O I：

10.1016/j.nuclphysbps.2016.05.052

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

It has been discovered in recent heavy-ion experiments that elliptic and triangular flow of direct photons are underpredicted by most hydrodynamic models. I discuss possible enhancement mechanisms based on late chemical equilibration of the QGP and in-medium modification of parton distributions. Numerical hydrodynamic analyses indicate that they suppress early photon emission and visibly enhance thermal photon elliptic flow.

引用

页码：233 / 236

页数：4

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