Nuclei: A Superfluid Condensate of alpha -Particles. A Study within the Interacting Boson Model

摘要

We study the question whether pairs of neutrons and pairs of protons of the usual superfluid phases do not form a bound state to give rise to a superfluid condensate of '' alpha -particles''. We indeed find indications for this to be the case from a BCS like study for bosons using the proton-neutron IBM as well as from an even-odd effect in the number of pairs using experimental binding energies. (ERA citation 10:015326)