A renewed look at eta' in medium

Details A renewed look at eta' in medium A renewed look at eta' in medium

2012-03-30

arxiv.org/abs/1203.6740v2

Physics

Nuclear Physics

Nuclear Theory

6 pages, 2 figures

Scientific paper

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.

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