$\rho - \omega$ Mixing at High Temperature and Density
  The temperature and density dependence of the $\rho-\omega$ mixing amplitude has been studied from a purely hadronic model. The in-medium baryon masses and chemical potentials have been obtained at the Mean Field (MF) Level and these results have been used to calculate the mixing amplitude. It has been observed that the mixing amplitude changes substantially at high temperature and density. 
Abhijit Bhattacharyya