Journal article

Publication year: 2010

Journal: Physical Review D

Volume number: 81

Issue number: 3

ISSN: 1550-7998

eISSN: 1550-2368

Open access status: Green

DOI Link: https://doi.org/10.1103/PhysRevD.81.034002

Publisher: American Physical Society

Abstract: 
Drell-Yan pair production is investigated. We reexamine a model where the quark momentum fraction is defined as the ratio of the corresponding light-cone components of the quark and parent nucleon in a naive parton-model approach. It is shown that the results differ from the standard parton model. This is due to unphysical solutions for the momentum fractions within the naive approach which are not present in the standard parton model. In a calculation employing full quark kinematics, i.e., including primordial quark transverse momentum, these solutions also appear. A prescription is given to handle these solutions in order to avoid incorrect results. The impact of these solutions in the full kinematical approach is demonstrated and compared to the modified result.

Harvard Citation style: Eichstaedt, F., Leupold, S. and Mosel, U. (2010) Phenomenological model for the Drell-Yan process: Reexamined, Physical Review D, 81(3), Article 034002. https://doi.org/10.1103/PhysRevD.81.034002

APA Citation style: Eichstaedt, F., Leupold, S., & Mosel, U. (2010). Phenomenological model for the Drell-Yan process: Reexamined. Physical Review D. 81(3), Article 034002. https://doi.org/10.1103/PhysRevD.81.034002