Pion parton distributions in a nonlocal Lagrangian |
| |
Authors: | S Noguera V Vento |
| |
Institution: | 1. Departamento de F?±sica Te?3rica and Instituto de F?±sica Corpuscular, Universidad de Valencia-CSIC, E-46100, Burjassot, Spain
|
| |
Abstract: | We use phenomenological nonlocal Lagrangians, which lead to nontrivial forms for the quark propagator, to describe the pion.
We define a procedure based on previous studies on nonlocal Lagrangians for the calculation of the pion parton distributions
at low Q2. The obtained parton distributions fulfill all the wishful properties. Using a convolution approach we incorporate the composite
character of the constituent quarks. We evolve, using the Renormalization Group, the calculated parton distributions to the
experimental scale and compare favorably with the data and draw conclusions. |
| |
Keywords: | 11 10 St Bound and unstable states Bethe-Salpeter equations 12 38 Lg Other nonperturbative calculations 13 60 Fz Elastic and Compton scattering 24 10 Jv Relativistic models |
本文献已被 SpringerLink 等数据库收录! |
|