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Titolo:
K-FORBIDDEN TRANSITIONS FROM MULTI-QUASI-PARTICLE STATES
Autore:
WALKER PM; CULLEN DM; PURRY CS; APPELBE DE; BYRNE AP; DRACOULIS GD; KIBEDI T; KONDEV FG; LEE LY; MACCHIAVELLI AO; REED AT; REGAN PH; XU F;
Indirizzi:
UNIV SURREY,DEPT PHYS GUILDFORD GU2 5XH SURREY ENGLAND UNIV LIVERPOOL,DEPT PHYS,OLIVER LODGE LAB LIVERPOOL L69 3BX MERSEYSIDE ENGLAND AUSTRALIAN NATL UNIV,RES SCH PHYS SCI & ENGN,DEPT PHYS NUCL CANBERRA ACT 0200 AUSTRALIA UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB BERKELEY CA 94720
Titolo Testata:
Physics letters. Section B
fascicolo: 1-4, volume: 408, anno: 1997,
pagine: 42 - 46
SICI:
0370-2693(1997)408:1-4<42:KTFMS>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
BARRIER PENETRATION; QUASI-PARTICLE; DECAY; ISOMERS; ALIGNMENT; SELECTION; NUCLEI; HF-174;
Keywords:
DEFORMED NUCLEI; K ISOMERS; TRANSITION RATES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
27
Recensione:
Indirizzi per estratti:
Citazione:
P.M. Walker et al., "K-FORBIDDEN TRANSITIONS FROM MULTI-QUASI-PARTICLE STATES", Physics letters. Section B, 408(1-4), 1997, pp. 42-46

Abstract

Four-quasiparticle, K-pi = 12(+) states in Hf-172 and W-178, with half-lives less than 2 ns, are found to decay to their respective K-pi = O+ ground-state bands, in competition with transitions to intermediate-K, two-quasiparticle structures. All decay transitions are weakly hindered. When taken together with other K-isomer decay rates, an overalltrend of decreasing hindrance with increasing excitation energy is evident. Estimates based on density-of-states considerations approximately reproduce the trend of the data, but also indicate the need to include other K-mixing effects. (C) 1997 Published by Elsevier Science B.V.

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Documento generato il 29/11/20 alle ore 06:41:27