arXiv:1203.6740·v2·Nuclear Theory
A renewed look at eta' in medium
Youngshin Kwon🇰🇷 · Su Houng Lee🇰🇷 · Kenji Morita🇯🇵 · Gyuri Wolf🇭🇺
Abstract
We revisit the question of whether the U_A(1) symmetry is effectively restored in hot and dense medium. In particular, by generalizing the Witten-Veneziano formula to finite temperature, we investigate whether the mass of eta'-meson will change in medium due to the restoration of chiral symmetry.
Comments: 6 pages, 2 figures