Competition between T = 0 and T = 1 pairing in protonrich nuclei
Abstract
A cranked meanfield model with twobody T = 1 and T = 0 pairing interactions is presented. Approximate projection onto good particlenumber is enforced via an extended LipkinNogami scheme. Our calculations suggest the simultaneous presence of both T = 0 and T = 1 pairing modes in N = Z nuclei. The transitions between different pairing phases are discussed as a function of neutron/proton excess, T_{z}, and rotational frequency, ℏω. The additional binding energy due to theT = 0 nppairing correlations, is suggested as a possible microscopic explanation of the Wigner energy term in eveneven nuclei.
 Publication:

Physics Letters B
 Pub Date:
 February 1997
 DOI:
 10.1016/S03702693(96)016036
 arXiv:
 arXiv:nuclth/9608041
 Bibcode:
 1997PhLB..393....1S
 Keywords:

 Nuclear Theory
 EPrint:
 8 RevTeX pages, 3 uuencoded POSTSCRIPT figures included