Submicrosecond isomer in 45117Rh72 and the role of triaxiality in its electromagnetic decay rate

S. Lalkovski , A.M. Bruce , A.M. Denis Bacelar , M. Górska , S. Pietri , Z. Podolyák , P. Bednarczyk , L. Caceres , E. Casarejos , I.J. Cullen , P. Doornenbal , G.F. Farrelly , A.B. Garnsworthy , H. Geissel , W. Gelletly , J. Gerl , J. Grȩbosz , C. Hinke , G. Ilie , D. Ivanova , Grzegorz Jaworski , S. Kisyov , I. Kojouharov , N. Kurz , N. Minkov , S. Myalski , M. Palacz , P. Petkov , W. Prokopowicz , P.H. Regan , H. Schaffner , S. Steer , S. Tashenov , P.M. Walker , H.J. Wollersheim


The neutron-rich nucleus 117Rh was synthesized in the fission of a relativistic 238U beam produced at the GSI laboratory in Darmstadt, Germany. An isomeric state with t1/2=138(17) ns decaying by a single γ ray was observed, providing the first information on the excited states in this nucleus. The experimental data are discussed in terms of systematics and interpreted by using the Woods-Saxon deformed shell model and triaxial-rotor-plus-particle calculations. The origin of the isomer is explained as being due to a hindered E2 transition to the ground state. © 2013 American Physical Society.
Author S. Lalkovski
S. Lalkovski,,
, A.M. Bruce
A.M. Bruce,,
, A.M. Denis Bacelar
A.M. Denis Bacelar,,
, M. Górska
M. Górska,,
, S. Pietri
S. Pietri,,
, Z. Podolyák
Z. Podolyák,,
, P. Bednarczyk
P. Bednarczyk,,
, L. Caceres
L. Caceres,,
, E. Casarejos
E. Casarejos,,
, I.J. Cullen
I.J. Cullen,,
et al.`
Journal seriesPhysical Review C, ISSN 0556-2813
Issue year2013
Publication size in sheets0.5
Score (nominal)45
ScoreMinisterial score = 45.0, ArticleFromJournal
Ministerial score (2013-2016) = 45.0, ArticleFromJournal
Publication indicators WoS Impact Factor: 2013 = 3.881 (2) - 2013=3.551 (5)
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