Highly anomalous yrast B(E2) values and vibrational collectivity

Journal Article · Fri Oct 01 00:00:00 EDT 2004 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.70.047302· OSTI ID:20695698

Cakirli, R B ^[1]; Casten, R F ^[1]; Jolie, J; Warr, N ^[2]

---

1. Wright Nuclear Structure Laboratory, Yale University, New Haven, Connecticut 06520-8124 (United States)
2. Institut fuer Kernphysik, Universitaet zu Koeln, Cologne (Germany)

It is shown that the existing yrast B(E2) values [especially the B(E2;4{sub 1}{sup +}{yields}2{sub 1}{sup +})/B(E2;2{sub 1}{sup +}{yields}0{sub 1}{sup +}) ratio] in {sup 98}Ru are highly anomalous and cannot be plausibly interpreted with existing models. A survey of all even-even nuclei from 40{<=}Z{<=}80 shows that this phenomenon is rare in collective nuclei. It occurs to a much lesser extent in {sup 114}Te, {sup 114}Xe, and possibly a few other nuclides. The combination of vibrational-like energies and nonvibrational B(E2) values perhaps points to a different kind of vibrational behavior.

• OSTI ID: 20695698
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 70, Issue 4; Other Information: DOI: 10.1103/PhysRevC.70.047302; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BRANCHING RATIO
COLLECTIVE MODEL
E2-TRANSITIONS
NUCLEAR STRUCTURE
PARITY
RUTHENIUM 98
SPIN
TELLURIUM 114
VIBRATIONAL STATES
XENON 114
YRAST STATES