On the existence of a second Jπ = 0+ resonance at high excitation energy in 24Mg and a possible mechanism for the occurrence of resonances in the (12C + 12C) system

Abstract

Evidence for the existence of a second Jπ = 0 + resonance at high excitation energy in 24Mg (E x = 19.70 MeV) is shown from a study of the 12C( 12C, α)20Ne reaction at Ec.m. = 5.80 ± 0.05 MeV. Using this result and those obtained previously, a comparison is made with the resonances observed in the second well of the fission barrier of some actinides.