Abstract
Dynamical symmetries of IBM-3 (interacting boson model including isospin (T)) with not only goodTbut also goodsanddboson isospins (Ts, Td) carry signatures typical of some heavy (proton rich)N∼Zeven–even nuclei and therefore complete study of these symmetries is important for proton drip line nuclei. With good (Ts, Td) there are three dynamical symmetries in IBM-3 and they are called [Ud(5)⊗UTd(3)]⊕UTs(3), [Ud(15)⊃Od(15)]⊕UTs(3), andOsd(18)⊃Od(15)⊕OTs(3) limits; the last two symmetry limits carryα-particle-like correlations. For these three symmetry limits group chains, irrep labels, group generators, linear and quadratic Casimir operators, and energy formulas are given. ForT=0 even–even nuclei, in the three symmetry limits analytical formulas are given forB(E2)'s involving low-lying levels and also for the yrast band members. There are clear signatures of isospin both in spectra andB(E2)'s which can be subjected to experimental tests in the future.
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.
