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Observation of a gamma-decaying millisecond isomeric state in Cd-128(80)

Title
Observation of a gamma-decaying millisecond isomeric state in Cd-128(80)
Author
김용균
Keywords
Isomeric decays; Shell model calculations; Transition strengths
Issue Date
2017-07
Publisher
ELSEVIER SCIENCE BV
Citation
PHYSICS LETTERS B, v. 772, page. 483-488
Abstract
A new high-spin isomer in the neutron-rich nucleus Cd-128 was populated in the projectile fission of a U-238 beam at the Radioactive Isotope Beam Factory at RIKEN. A half-life of T-1/2 = 6.3(8) mswas measured for the new state which was tentatively assigned a spin/parity of (15(-)). The experimental results are compared to shell model calculations performed using state-of-the-art realistic effective interactions and to the neighbouring nucleus Cd-129. In the present experiment no evidence was found for the decay of a 18(+) E6 spin-trap isomer, based on the complete alignment of the two-neutron and two-proton holes in the 0h(11/2) and the 0g(9/2) orbit, respectively, which is predicted to exist by the shell model. (C) 2017 The Author(s). Published by Elsevier B.V.
URI
https://www.sciencedirect.com/science/article/pii/S0370269317305531?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/114862
ISSN
0370-2693; 1873-2445
DOI
10.1016/j.physletb.2017.07.006
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > NUCLEAR ENGINEERING(원자력공학과) > Articles
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