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Identification of a high-spin isomer inMo99
Author(s) -
G. A. Jones,
P. H. Regan,
P. M. Walker,
Zs. Podolyák,
P. D. Stevenson,
M. P. Carpenter,
J. J. Carroll,
R. S. Chakrawarthy,
P. Chowdhury,
A. B. Garnsworthy,
R. V. F. Janssens,
T. L. Khoo,
F. G. Kondev,
G. J. Lane,
Z. Liu,
D. Seweryniak,
Nicholas J. Thompson,
S. Zhu,
Spencer J. Williams
Publication year - 2007
Publication title -
physical review c
Language(s) - English
Resource type - Journals
eISSN - 1089-490X
pISSN - 0556-2813
DOI - 10.1103/physrevc.76.047303
Subject(s) - physics , atomic physics , excitation , spin (aerodynamics) , energy (signal processing) , fission , beam energy , nuclear reaction , nuclear physics , crystallography , beam (structure) , neutron , chemistry , quantum mechanics , optics , thermodynamics
A previously unreported isomer has been identified in Mo-99 at an excitation energy of E-x = 3010 keV, decaying with a half-life of T-1/2 = 8(2) ns. The nucleus of interest was produced following fusion-fission reactions between a thick Al-27 target frame and a Hf-178 beam at a laboratory energy of 1150 MeV. This isomeric state is interpreted as an energetically favored, maximally aligned configuration of nu h (11/2) circle times pi(g (9/2))(2).

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