Investigation into the B(E2) anomaly in {sup 144}Nd using Coulomb excitation

Journal Article · Mon Sep 15 04:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.78.034309· OSTI ID:21192191

Fitzpatrick, C R ^[1]; Werner, V; Casten, R F; Williams, E; Ai, H; Heinz, A; McCutchan, E A; Meyer, D A; Novitski, E; Qian, J; Winkler, R ^[1]; Beausang, C W ^[1]; Cakirli, R B ^[1]; Guerdal, G ^[1]

---

1. WNSL, Yale University, New Haven, Connecticut 06511 (United States)

The ratio of B(E2) strengths between the lowest lying members of the ground state band in {sup 144}Nd, B{sub 4/2}=B(E2;4{sub 1}{sup +}{yields}2{sub 1}{sup +})/B(E2;2{sub 1}{sup +}{yields}0{sub 1}{sup +}), which is used to quantify collectivity in nonmagic nuclei, has been remeasured by means of Coulomb excitation. Ambiguities in literature values for this ratio have been resolved. The results are discussed in terms of the interplay of collective and single-particle degrees of freedom, and in the context of the formation of collective structures in the A=140 mass region, and more generally near (sub)shell closures. In addition, the B{sub 4/2} ratio of {sup 148}Sm has been remeasured, and the quadrupole moment of the 4{sub 1}{sup +} state is found to be on the order of 1 e b.

• OSTI ID: 21192191
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 78; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CLOSURES
COULOMB EXCITATION
DEGREES OF FREEDOM
E2-TRANSITIONS
GROUND STATES
MASS
NEODYMIUM 144
PARTICLES
QUADRUPOLE MOMENTS
SAMARIUM 148