6533b7d5fe1ef96bd1265261

RESEARCH PRODUCT

Description of rotating N=Z nuclei in terms of isovector pairing

A. V. AfanasjevA. V. AfanasjevS. Frauendorf

subject

PhysicsNuclear and High Energy PhysicsParticle physicsField (physics)IsovectorNuclear TheoryIsoscalarNuclear TheoryFOS: Physical sciencesSymmetry (physics)Nuclear Theory (nucl-th)Mean field theoryQuantum electrodynamicsIsospinPairingSpin-½

description

A systematic investigation of the rotating $N=Z$ even-even nuclei in the mass $A=58-80$ region has been performed within the frameworks of the Cranked Relativistic Mean field, Cranked Relativistic Hartree Bogoliubov theories and cranked Nilsson-Strutinsky approach. Most of the experimental data is well accounted for in the calculations. The present study suggests that there is strong isovector $np$-pair field at low spin, the strength of which is defined by the isospin symmetry. At high spin, the isovector pair field is destroyed and the data are well described by the calculations assuming zero pairing. No clear evidence for the existence of the isoscalar $t=0$ $np$-pairing has been obtained in the present investigation.

https://www.hzdr.de/publications/Publ-8521-1