论文标题
在轻锥路径积分方法中对RHIC和LHC的喷射淬火的更新分析
Updated analysis of jet quenching at RHIC and LHC within the light cone path integral approach
论文作者
论文摘要
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.我们在诱导的gluon发射的轻锥路径积分方法中执行计算。我们使用运行的$α_s$，该$在低矩形中以某种值$α_{s}^{fr} $冷冻。我们发现RHIC数据支持$α_{s}^{fr} $的更大值。对于$α_{s}^{fr} $的$χ^2 $优化值，理论预测与$ r_ {aa} $和$ v_2 $的数据是合理的一致性。对QGP的不同形成时间和生命时间进行的计算表明，RHIC和LHC能量处的喷射淬火仅对QCD物质演化的初始和最终阶段较弱。
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 approach to induced gluon emission. We use running $α_s$ which is frozen at low momenta at some value $α_{s}^{fr}$. We find that the RHIC data support somewhat larger value of $α_{s}^{fr}$. For the $χ^2$ optimized values of $α_{s}^{fr}$, 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.
