论文标题
LHC与爱丽丝的PB-PB和PB-PB碰撞中的Electroweak-Boson产生
Electroweak-boson production in p-Pb and Pb-Pb collisions at the LHC with ALICE
论文作者
论文摘要
电动玻色子是重型离子碰撞的初始状态的敏感探针，为了将其与夸克（Quark-gluon-gluon等血浆（QGP）的存在）诱导的现象相比，需要精确的知识。 Z和W $^\ PM $ BOSON的生产率对Parton分布功能的核修饰（PDF）特别敏感，Muonic衰减（Z $ \rightArrowμ^+μ^+μ^ - $和w $^\^\ pm \ pm pm \rightArrowμ^\ pmν$）可提供中等蓝的过程。在这项贡献中，$ \ sqrt {s _ {_ {_ {\ rm nn}} $ = 8.16 tev和pb-pb碰撞在$ \ sqrt {数据是在Alice Muon光谱仪的正向快速性时收集的，并将其与有和不包括核修饰的理论预测进行了比较。
Electroweak bosons are sensitive probes of the initial state of heavy-ion collisions, of which a precise knowledge is required in order to disentangle initial state effects from phenomena induced by the presence of the quark--gluon plasma (QGP). The production rate of the Z and W$^\pm$ bosons is especially sensitive to the nuclear modification of the Parton Distribution Functions (PDF), and the muonic decays (Z $\rightarrow μ^+μ^-$ and W$^\pm \rightarrow μ^\pm ν$) offer medium-blind processes carrying this information to the detector where it can be directly collected. In this contribution, new measurements of electroweak bosons in p--Pb collisions at $\sqrt{s_{_{\rm NN}}}$ = 8.16 TeV and Pb--Pb collisions at $\sqrt{s_{_{\rm NN}}}$ = 5.02 TeV measured by the ALICE Collaboration are reported. The data are collected at forward rapidity with the ALICE muon spectrometer and are compared to theoretical predictions with and without including nuclear modifications.
