Speaker
Yiyu Zhou
(University of Turin)
Description
In this work, we investigate the nuclear modification effects in transverse momentum dependent
(TMD) observables by implementing a nuclear covariance matrix in the treatment of theoretical uncertainties. Global QCD analysis is performed with the aforementioned nuclear covariance matrix to verify its equivalence with the traditional approach of including a nuclear correction parameter. The data analyzed are the Drell-Yan $q_T$-differential data in $pA$ and $\pi A$ collisions. In addition, we also perform global QCD analysis with no treatment for the nuclear effects, verifying the necessity of implementing the nuclear corrections.
Authors
Andrea Signori
(Istituto Nazionale di Fisica Nucleare)
Emanuele Roberto Nocera
(Istituto Nazionale di Fisica Nucleare)
Mariaelena Boglione
(Istituto Nazionale di Fisica Nucleare)
Patrick Barry
(Argonne National Lab)
Yiyu Zhou
(University of Turin)
