Study on the 21Na(p,γ)22Mg stellar reaction by the (p,t) reaction

Abstract We have experimentally studied the excited states in 22 Mg near and above the proton threshold using the 24 Mg( p,t ) transfer reaction. The states at 5.714, 5.962, and 6.046 MeV, which are important for nucleosynthesis in novae, were assigned to have J π = 2 + , (1 − ), and 0 + , respectively. The doublets at around 6.3 MeV were, furthermore, resolved and successfully assigned to have J π = (6 + ) and (4 + ) for the first time.