Pions in isospin asymmetric nuclei

Abstract

Using a pair of the lightest mirror nuclei, ${}^3$He and ${}^3$H, we study the effect of the medium modification of pion fields on the flavor non-singlet structure function. The change of the pion fields leads to an enhancement of the flavor asymmetry of the antiquark distributions in a nucleus.

Comments: 14 pages (4 figures)