Matter effects on $\eta$ and ${\eta }^{\prime }$ mesons

Vivek Kumar Tiwari, Anirban Kundu

We show how the nuclear medium affects the masses of the $\eta$ and ${\eta }^{\prime }$ mesons. The change should be easily detectable for dense matter and/or strong $\eta ({\eta }^{\prime })N\bar{N}$ coupling. We also…