Pion nucleus Drell-Yan process and parton transverse momentum in the pion

Abstract

During the INT-18-3 workshop, we presented an analysis of unpolarized Drell-Yan pair production in pion-nucleus scattering with a particular focus into the pion Transverse Momentum Distributions in view of the future Electron Ion Collider. The transverse distributions of the pion calculated in a Nambu--Jona-Lasinio framework, with Pauli-Villars regularization, were used. The pion Transverse Momentum Distributions evolved up to next-to-leading logarithmic accuracy is then tested against the transverse momentum spectrum of dilepton pairs up to a transverse momentum of 2 GeV. We found a fair agreement with available pion-nucleus data. This contribution joins common efforts from the TMD and the pion structure communities for the Electron Ion Collider.

arXiv commentTo appear in the proceedings of the program "Probing Nucleons and Nuclei in High Energy Collisions (INT 18-3)," Seattle, October 2018. To be published in World Scientific. Includes corresponding .sty and .cls. arXiv admin note: substantial text overlap with arXiv:1903.06803