Isomer spectroscopy of (127)Cd
2010 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 82, no 3, 034323- p.Article in journal (Refereed) Published
The spin and configurational structure of excited states of (127)Cd, the two-proton and three-neutron hole neighbor of (132)Sn, has been studied. An isomeric state with a half-life of 17.5(3) mu s was populated in the fragmentation of a (136)Xe beam on a (9)Be target at a beam energy of 750 MeV/u. Time distributions of the delayed gamma transitions and gamma gamma coincidence relations were exploited to construct a decay scheme. The observed yrast (19/2)(+) isomer is proposed to have dominant configurations of nu(h(11/2)(-3))pi(g(9/2)(-1), p(1/2)(-1)), nu(h(11/2)(-2)d(3/2)(-1))pi(g(9/2)(-2)), and nu(h(11/2)(-2), s(1/2)(-1))pi(g(9/2)(-2)) and to decay by two competing stretched M2 and E3 transitions. Experimental results are compared with the isotone (129)Sn. The new information provides input for the proton-neutron interaction and the evolution of neutron hole energies in nuclei around the doubly magic (132)Sn core.
Place, publisher, year, edition, pages
2010. Vol. 82, no 3, 034323- p.
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-46616DOI: 10.1103/PhysRevC.82.034323ISI: 000282130200002ScopusID: 2-s2.0-77957318373OAI: oai:DiVA.org:kth-46616DiVA: diva2:455449
QC 201111102011-11-102011-11-042011-11-10Bibliographically approved