28 July 2020 to 6 August 2020
virtual conference
Europe/Prague timezone

Drell-Yan production at NLO in the Parton Branching method at low and high DY masses and low and high $sqrt{s}$

30 Jul 2020, 12:05
virtual conference

virtual conference

Talk 06. Strong Interactions and Hadron Physics Strong Interactions and Hadron Physics


Qun Wang (Peking University (CN))


Transverse Momentum Dependent (TMD) parton distributions obtained from the Parton Branching (PB) method are combined with next-to-leading-order (NLO) calculations of Drell-Yan (DY) production. We apply the MC@NLO method for the hard process calculation and matching with the PB TMDs.
We compute predictions for the transverse momentum of Z bosons and Drell-Yan (DY) production. The theoretical predictions agree well, within uncertainties, with measurements at the Large Hadron Collider (LHC). We also compute the transverse momentum spectrum of low mass DY production at low center-of-mass energies $\sqrt{s}$ and compare our predictions with experimental measurements at low DY mass, and find very good agreement. In addition we use the low mass DY measurements at low $\sqrt{s}$ to determine the width $q_s$ of the intrinsic Gauss distribution of the PB -TMDs at low evolution scales and find values that have earlier been used in applications of PB -TMDs to high-energy processes at the LHC and HERA.

Primary authors

Hannes Jung (Deutsches Elektronen-Synchrotron (DE)) Armando Bermudez Martinez (CMS-DESY) Patrick Connor (Deutsches Elektronen-Synchrotron (DE)) Mr Luis Ignacio Estevez Banos Francesco Hautmann (University of Bilbao (ES)) Aleksandra Anna Lelek (University of Antwerp (BE)) Jindrich Lidrych (Deutsches Elektronen-Synchrotron (DESY)) Mikel Mendizabal (DESY) Melanie Viola Schmitz (Deutsches Elektronen-Synchrotron (DE)) Sara Taheri Monfared (Deutsches Elektronen-Synchrotron (DE)) Qun Wang (Peking University (CN)) Thomas Wening (DESY) Heng Yang (CERN) Radek Zlebcik (Charles University)

Presentation materials