Journal of Physics G: Nuclear and Particle Physics ( IF 3.5 ) Pub Date : 2021-04-28 , DOI: 10.1088/1361-6471/abc5fc B G Zakharov
We present results of a detailed analysis of experimental data on the nuclear modification factor R AA and the flow coefficient v 2 for light hadrons from RHIC for 0.2 TeV Au + Au collisions and from LHC for 2.76 and 5.02 TeV Pb + Pb, and 5.44 TeV Xe + Xe collisions. We perform calculations within the light-cone path integral (LCPI) approach to induced gluon emission. We use running α s which is frozen at low momenta at some value . We find that the RHIC data support somewhat larger value of . For the χ 2 optimized values of , the theoretical predictions are in reasonable agreement with data on R AA and v 2. Calculations made for different formation times and life-times of the QGP show that jet quenching at the RHIC and LHC energies is only weakly sensitive to the initial and final stages of the QCD matter evolution.
中文翻译:
更新了光锥路径积分法中 RHIC 和 LHC 的射流淬火分析
我们展示了对RHIC 的 0.2 TeV Au + Au 碰撞和 LHC 的 2.76 和 5.02 TeV Pb + Pb 和 5.44 TeV 轻强子的核修饰因子R AA和流动系数v 2的实验数据的详细分析结果Xe + Xe 碰撞。我们在光锥路径积分 (LCPI) 方法中执行计算以诱导胶子发射。我们使用运行α s,它在某个值的低动量下被冻结。我们发现 RHIC 数据支持稍大的 值。对于 的χ 2优化值,理论预测与R AA和v 2。对 QGP 的不同形成时间和寿命进行的计算表明,RHIC 和 LHC 能量下的射流淬火对 QCD 物质演化的初始和最后阶段仅微弱敏感。