Chiral Doublet Structures in Odd-Odd N = 75 Isotones: Chiral Vibrations

Journal Article · Mon Feb 05 00:00:00 EST 2001 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.86.971· OSTI ID:40205819

Starosta, K; Koike, T; Chiara, C J; Fossan, D B; LaFosse, D R; Hecht, A A; Beausang, C W; Caprio, M A; Cooper, J R; Kru''cken, R ^[1]

---

1. and others

New sideband partners of the yrast bands built on the {pi}h{sub 11/2}{nu}h{sub 11/2} configuration were identified in {sub 55}Cs , {sub 57}La , and {sub 61}Pm N=75 isotones of {sup 134}Pr . These bands form with {sup 134}Pr unique doublet-band systematics suggesting a common basis. Aplanar solutions of 3D tilted axis cranking calculations for triaxial shapes define left- and right-handed chiral systems out of the three angular momenta provided by the valence particles and the core rotation, which leads to spontaneous chiral symmetry breaking and the doublet bands. Small energy differences between the doublet bands suggest collective chiral vibrations.

• Sponsoring Organization: (US)
• OSTI ID: 40205819
• Journal Information: Physical Review Letters, Vol. 86, Issue 6; Other Information: DOI: 10.1103/PhysRevLett.86.971; Othernumber: PRLTAO000086000006000971000001; 020105PRL; PBD: 5 Feb 2001; ISSN 0031-9007
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
CONFIGURATION
ENANTIOMORPHS
ISOTONIC NUCLEI
ROTATION
VALENCE