Abstract
Pairing from different fermions, neutrons and protons, is unique in nuclear physics. The fingerprint for the isoscalar T=0 neutron–proton (np) pairing has however remained a question. We study this exotic pairing mode in excited states of rotating N≈Z nuclei by applying the state-of-the-art shell-model calculations for 88Ru and the neighboring 90,92Ru isotopes. We show that the T=0 np pairing is responsible for the distinct rotational behavior between the N=Z and N>Z nuclei. Our calculation suggests a gradual crossover from states with mixed T=1 and T=0 pairing near the ground state to those dominated by the T=0 np pairing at high spins. It is found that the T=0 np pairing plays an important role in enhancing the high-spin collectivity, thereby reducing shape variations along the N=Z line.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
