Study of a 5-Alpha Cluster Candidate with the 22 Ne( p , t ) 20 Ne and 22 Ne( p , 3 He) 20 F Reactions

The isobaric nuclei 20Ne and 20F were investigated with the 22Ne(p,t)20Ne and 22Ne(p,3He)20F reactions using a beam of protons at Ep = 80 MeV. The former reaction was employed to confirm a tentative candidate for the 5-alpha cluster state in 20Ne, while the latter was used to look for T = 2 isobaric analogue partner states in 20F to states which were already observed above Ex = 20 MeV in 20Ne. The existence of a state which could be considered as a candidate for the 5-alpha cluster state is confirmed here as well as the T = 2 IAS states in 20Ne.