arXiv:1608.03858·v3·High Energy Physics — Phenomenology
In-Medium Pion Valence Distributions in a Light-Front Model
J. P. B. C de Melo · K. Tsushima · (Laboratório de Fisica Teorica e Computacional - LFTC, Universidade Cruzeiro do Sul) · I. Ahmed · (National Center for Physics, Quaidi-i-Azam University Campus)
Abstract
Pion valence distributions in nuclear medium and vacuum are studied in a light-front constituent quark model. The in-medium input for studying the pion properties is calculated by the quark-meson coupling model. We find that the in-medium pion valence distribution, as well as the in-medium pion valence wave function, are substantially modified at normal nuclear matter density, due to the reduction in the pion decay constant.
Comments: 16 pages. 10 eps figures, typos corrected. Version to appear Physics Letters B