论文标题
在改进的高扭方法中，核中的重夸克辐射能量损失
Heavy quark radiative energy loss in nuclei within the improved high-twist approach
论文作者
论文摘要
在此程序中，我们回顾了由于最近改进的高扭方法中多个Parton散射而导致的核夸克辐射能量损失的最新工作，可以通过对初始Partons的横向动量的精致设置来确保仪表不变性。我们的新结果与以前的无质量夸克能量损失和在软gluon辐射极限中分别进行重夸克能量损失的计算一致。与先前的结果相比，我们在数值上显示了对重夸克能量损失的校正，并且具有软gluon辐射近似。对于重型离子碰撞中的轻巧和重型风味数据的全球描述，证明了超出软gluon辐射限制的必要性。
In this proceedings, we review our recent work on the heavy quark radiative energy loss in nuclei due to multiple parton scattering within the recently improved high-twist approach, where gauge invariance can be ensured by a delicate setup of the initial partons' transverse momenta. Our new result is consistent with the previous calculations of light quark energy loss in the massless limit and heavy quark energy loss in the soft gluon radiation limit, respectively. We show numerically the correction to the heavy quark energy loss as compared with previous result and with soft gluon radiation approximation. The necessity to go beyond soft gluon radiation limit is demonstrated for a global description of light and heavy flavor data in heavy-ion collisions.
