Journal article

Publication year: 2005

Journal: Physical Review D

Volume number: 71

Issue number: 3

ISSN: 1550-7998

eISSN: 1550-2368

Open access status: Green

DOI Link: https://doi.org/10.1103/PhysRevD.71.034009

Publisher: American Physical Society

Abstract: 
We pursue a phenomenological study of higher-twist effects in high-energy processes by taking into account the off-shellness (virtuality) of partons bound in the nucleon. The effect of parton off-shellness in deep inelastic ep-->eX scattering (DIS) and the Drell-Yan process (pp-->l (l) over barX) is examined. Assuming factorization and a single-parameter Breit-Wigner form for the parton spectral function, we develop a model to calculate the corresponding off-shell cross sections. Allowing for a finite parton width approximate to100 MeV, we reproduce the data of both DIS and the triple-differential Drell-Yan cross section without an additional K-factor. The results are compared to those from perturbative QCD and the intrinsic-k(T) approach.

Harvard Citation style: Linnyk, O., Leupold, S. and Mosel, U. (2005) Quark initial state interaction in deep inelastic scattering and the Drell-Yan process, Physical Review D, 71(3), Article 034009. https://doi.org/10.1103/PhysRevD.71.034009

APA Citation style: Linnyk, O., Leupold, S., & Mosel, U. (2005). Quark initial state interaction in deep inelastic scattering and the Drell-Yan process. Physical Review D. 71(3), Article 034009. https://doi.org/10.1103/PhysRevD.71.034009