A renewed look at eta' in medium

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.

6 pages, 2 figures

References in corpus (7)

• The QCD equation of state with dynamical quarks
• Transparency ratio in γA -> η' A' and the in-medium η' width
• Critical behavior of charmonia across the phase transition: A QCD sum rule approach
• Nuclear bound state of eta'(958) and partial restoration of chiral symmetry in the eta' mass
• eta-prime nucleus optical potential and possible eta-prime bound states
• Charmonium mass in hot and dense hadronic matter
• η' Multiplicity and the Witten-Veneziano relation at finite temperature

Cited by in corpus (11)

• Meson-nucleus potentials and the search for meson-nucleus bound states
• Determination of the η'-nucleus optical potential
• In medium eta' mass and eta' N interaction based on chiral effective theory
• Determination of the real part of the η'-Nb optical potential
• Functional Renormalization for Chiral and U_A(1) Symmetries at Finite Temperature
• Updated study of the $\eta$-${\eta }^{\prime }$ mixing and the thermal properties of light pseudoscalar mesons at low temperatures
• Chiral and U_A(1) symmetry in correlation functions in medium
• A $U_A(1)$ symmetry restoration scenario supported by the generalized Witten-Veneziano relation and its analytic solution
• Centrality dependence of Lévy-stable two-pion Bose-Einstein correlations in $\sqrt{s_{{}_{NN}}}=200$ GeV Au$+$Au collisions
• Effect of the final state interaction of ${\eta }^{\prime }N$ on the ${\eta }^{\prime }$ photoproduction off nucleon
• Lifetime of the eta' meson at low temperature