EXCITED-STATES IN HG-176,HG-178 AND SHAPE COEXISTENCE IN VERY NEUTRON-DEFICIENT HG ISOTOPES

Authors
CARPENTER MP JANSSENS RVF AMRO H BLUMENTHAL DJ BROWN LT SEWERYNIAK D WOODS PJ ACKERMANN D AHMAD I DAVIDS C FISCHER SM HACKMAN G HAMILTON JH KHOO TL LAURITSEN T LISTER CJ NISIUS D RAMAYYA AV REVIOL W SCHWARTZ J SIMPSON J WAUTERS J
Citation
Mp. Carpenter et al., EXCITED-STATES IN HG-176,HG-178 AND SHAPE COEXISTENCE IN VERY NEUTRON-DEFICIENT HG ISOTOPES, Physical review letters, 78(19), 1997, pp. 3650-3653
Citations number
24
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
78
Issue
19
Year of publication
1997
Pages
3650 - 3653
Database
ISI
SICI code
0031-9007(1997)78:19<3650:EIHASC>2.0.ZU;2-W
Abstract
Excited states have been observed for the first time in the neutron-de ficient Hg-176,Hg-178 nuclei using the recoil-decay tagging (RDT) tech nique in which prompt gamma rays are associated with a particular isot ope through a correlation with the characteristic ground state alpha d ecay. Below N=102, the excitation energy of a rotational band built on a prolate shape (beta(2) similar to 0.25) increases with decreasing m ass to the point where there is no longer any evidence for its presenc e at low spin in Hg-176. Th, data are in qualitative agreement with re cent mean field calculations.