Electroweak boson production in heavy-ion collisions with CMS

14th International Conference on Strangeness in Quark Matter

Gardner, Michael^1

University of California, Davis, United States^1

关键词: Compact Muon solenoids;    Differential measurements;    Electroweak bosons;    Heavy ion collision;    High multiplicity;    Nucleon-nucleon collisions;    Nucleus-nucleus collision;    Precise measurements;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/509/1/012071/pdf
DOI  :  10.1088/1742-6596/509/1/012071

来源: IOP

【 摘 要 】

The Compact Muon Solenoid (CMS) is fully equipped to measure leptonic decays of electroweak probes in the high multiplicity environment of nucleus-nucleus collisions. Electroweak boson production is an important benchmark process at hadron colliders. Precise measurements of W and Z production in heavy-ion collisions can help to constrain nuclear PDFs as well as serve as a standard candle of the initial state in PbPb collisions at the LHC energies. The inclusive and differential measurements of the Z boson yield in the muon and electron decay channel will be presented, establishing that no modification is observed with respect to pp collisions, scaled by the number of incoherent nucleon-nucleon collisions.