Relativistic RPA for isobaric analogue and Gamow–Teller resonances in closed shell nuclei

C. De Conti, A.P. Galeão, F. Krmpotić
1998 Physics Letters B  
We perform a self-consistent relativistic RPA calculation for the isobaric analogue and Gamow-Teller resonances based on relativistic mean field theory results for the ground states of $^{48}$Ca, $^{90}$Zr and $^{208}$Pb. We use the parameter set NL1 for the $\sigma$, $\omega$ and $\rho$ mesons, and experimental values for the pion and nucleon. An extra parameter, related to the intensity of the contact term in the pion-exchange interaction, is crucial to reproduce the latter resonances.
doi:10.1016/s0370-2693(98)01373-2 fatcat:yosfqhhm3zcnxbqhj2msgvxmty