Parton density constraints from massive vector boson production at the LHC

9th International Workshop on High-pT Physics at LHC

Klasen, Michael^1

Institut für Theoretische Physik, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 9, Münster

D-48149, Germany^1

关键词: Lepton pairs;    Measurements of;    Nuclear modification;    Parton densities;    Quark-gluon;    Transverse momenta;    Vector boson;    Virtual photons;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/589/1/012012/pdf
DOI  :  10.1088/1742-6596/589/1/012012

来源: IOP

【 摘 要 】

We demonstrate that not only the production of virtual photons decaying into low- mass lepton pairs, but also the one of weak bosons at large transverse momenta is dominated by quark-gluon scattering. Measurements of these processes at the LHC can therefore provide useful constraints on the parton densities in the proton, in particular the one of the gluon, and their nuclear modifications.