论文标题

预测小型碰撞系统中的Parton能量损失

Predicting parton energy loss in small collision systems

论文作者

Huss, Alexander, Kurkela, Aleksi, Mazeliauskas, Aleksas, Paatelainen, Risto, van der Schee, Wilke, Wiedemann, Urs Achim

论文摘要

中等感应的Parton能量损失尚未在非常外围的重离子碰撞或质子离子碰撞中确定。但是,这些方位角动量各向异性的标准解释意味着一些党派撤退。即将到来的LHC的Light-Ion运行为在不同大小的不同系统中搜索Parton Energy损失提供了独特的机会。在这里,我们对LHC的系统大小扫描中带电的强子光谱中预期的Parton能量损失信号进行了预测。我们测试了一系列模型假设,以针对LHC的铅铅和Xenon-Xenon碰撞中带电的强子核修饰因子的横向动量和中心性依赖性。然后,我们试图对氧氧碰撞中带电的强子核修饰因子进行模型不可知的预测。

Medium induced parton energy loss is not conclusively established neither in very peripheral heavy-ion collisions nor in proton-ion collisions. However, the standard interpretation of azimuthal momentum anisotropies in theses systems implies some partonic rescattering. The upcoming light-ion runs at the LHC provide a unique opportunity to search for parton energy loss in different systems of similar size. Here, we make predictions for the expected parton energy loss signal in the charged hadron spectra in a system size scan at LHC. We test a large set of model assumptions against the transverse momentum and centrality dependence of the charged hadron nuclear modification factor in lead-lead and xenon-xenon collisions at the LHC. We then attempt to make a model agnostic prediction for the charged hadron nuclear modification factor in oxygen-oxygen collisions.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源