In-beam study of No-254

Citation
M. Leino et al., In-beam study of No-254, EUR PHY J A, 6(1), 1999, pp. 63-69
Citations number
36
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL A
ISSN journal
1434-6001 → ACNP
Volume
6
Issue
1
Year of publication
1999
Pages
63 - 69
Database
ISI
SICI code
1434-6001(199909)6:1<63:ISON>2.0.ZU;2-J
Abstract
Excited states of the Z = 102 nuclide No-254 hale been studied in the react ion Pb-208(Ca-48,2n) by means of in-beam gamma-ray spectroscopy in combinat ion with recoil gating and recoil decay tagging. A Ge detector array, consi sting of four clover detectors: and a gas-filled separator were used. Six g amma-ray lines were observed and associated with E2 transitions in the grou nd state band of No-254, the highest-lying of these being the 16(+) --> 14( +) transition. Based on global systematics and the extrapolated 2(1)(+) exc itation energy, the value beta(2) = 0.27+/-0.03 was extracted for the quadr upole deformation. An improved value for the half-life of No-254, T-1/2 = ( 48+/-3) s; was determined.