EVIDENCE FOR THE I-PI=8-, K=8 ISOMERIC STATE IN HF-184

Authors
KRUMBHOLZ K SCHMIDTOTT WD HILD T KUNZE V MEISSNER F WENNEMANN C KELLER H KIRCHNER R KLEPPER O ROECKL E SCHARDT D RYKACZEWSKI K
Citation
K. Krumbholz et al., EVIDENCE FOR THE I-PI=8-, K=8 ISOMERIC STATE IN HF-184, ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 351(1), 1995, pp. 11-12
Citations number
12
Categorie Soggetti
Physics, Nuclear","Physics, Particles & Fields
Journal title
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI → ACNP
ISSN journal
09397922
Volume
351
Issue
1
Year of publication
1995
Pages
11 - 12
Database
ISI
SICI code
0939-7922(1995)351:1<11:EFTIKI>2.0.ZU;2-7
Abstract
Using an 11.4 MeV/u Xe-136 beam of the UNILAC accelerator of GSI and a (nat)W target, A=184 isobars were produced and separated by using an on-line mass separator. A new isomeric state was found in Hf-184. This state decays with a half-life of 48(10)s and emits three gamma-rays o f 73, 482, and 555keV as well as lower-lying cascade transitions. The hindrance of the 73 keV-E1 transition with DELTAK=8 is compared with t hose of other even-even hafnium isotopes. The half-life of Lu184 was e stimated to be between 15 and 25 s.