Transverse pion structure beyond leading twist in constituent models

The European Physical Journal C

C. Lorcé¹  P. Schweitzer²  B. Pasquini³ 

[1] Centre de Physique Théorique, École polytechnique, CNRS, Université Paris-Saclay, 91128, Palaiseau, France;Department of Physics, University of Connecticut, 06269, Storrs, CT, USA;Institute for Theoretical Physics, Tübingen University, Auf der Morgenstelle 14, 72076, Tübingen, Germany;Dipartimento di Fisica, Università degli Studi di Pavia, Pavia, Italy;Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, Pavia, Italy;

关键词: Quark Model;    Parton Distribution Function;    Spectator Model;    Constituent Quark Mass;    Constituent Model;   

DOI  :  10.1140/epjc/s10052-016-4257-8

来源: Springer

【 摘 要 】

The understanding of the pion structure as described in terms of transverse-momentum-dependent parton distribution functions (TMDs) is of importance for the interpretation of currently ongoing Drell–Yan experiments with pion beams. In this work we discuss the description of pion TMDs beyond leading twist in a pion model formulated in the light-front constituent framework. For comparison, we also review and derive new results for pion TMDs in the bag and spectator model.

【 授权许可】

CC BY