Analysis of (³He,t) charge exchange reactions using distorted wave impulse approximation

The spin-isospin excitations in nuclei remained the subject of intense experimental and theoretical investigations in the last few decades. The charge exchange, (ΔT=1), reactions (³He, t) and (t, ³He) at intermediate energies have been particularly frequently employed as probes of the spin-isospin excitation in nuclei. Especially the Gamow-Teller (GT) transitions (ΔT=1, ΔS=1, ΔJ=1 with ΔL=0) have been the matter of intensive investigation due to their key role in extracting the weak transition strength in excitation-region remains inaccessible to β-decay. The deduced strengths have been employed in calculations of late stellar evolution and neutrino-driven nucleosynthesis in which weak transition strengths play a major role. In this context, in the current conference contribution we list the results obtained through the study of (³He, t) charge-exchange reaction at 140 A MeV on ¹²⁰Sn and ²⁰⁸Pb targets, analyzed within the theoretical framework of distorted wave impulse approximation