论文标题
Lepton电荷不对称的线性缩放在$ W^\ pm $生产超相关核冲突中
Linear scaling of lepton charge asymmetry in $W^\pm$ production in ultra-relativistic nuclear collisions
论文作者
论文摘要
$ \ sqrt {s _ {\ rm nn}} = 5.02 $ tev在$ \ sqrt {s _ {s _ {s _ {s _ {s _ {s _ {s _ {s _ {最近出版的爱丽丝和Lepton电荷不对称的地图集数据得到了很好的再现。在Lepton电荷不对称中观察到有趣的线性缩放行为，这是碰撞系统价值夸克数不对称的函数，在$ \ sqrt {s _ {\ rm nn}}} = 5.02 $ tev的核碰撞系统不同大小的核碰撞系统之间。这种线性缩放行为可能是对PDF（NPDF）提取的附加约束。
The lepton charge asymmetry in $W^\pm$ production in the nuclear collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV is investigated with a parton and hadron cascade model PACIAE. Recently published ALICE and the ATLAS data of lepton charge asymmetry are well reproduced. An interesting linear scaling behavior is observed in the lepton charge asymmetry as a function of the collision system valence quark number asymmetry among the different size of nuclear collision systems at $\sqrt{s_{\rm NN}}=5.02$ TeV. This linear scaling behavior may serve as an additional constraint on the PDF (nPDF) extractions.
