16(+) Spin-Gap Isomer in Cd-96

B. S. Nara Singh; Z. Liu; R. Wadsworth; H. Grawe; T. S. Brock; P. Boutachkov; N. Braun; A. Blazhev; M. Gorska; S. Pietri; D. Rudolph; C. Domingo-Pardo; S. J. Steer; A. Atac; L. Bettermann; L. Caceres; K. Eppinger; T. Engert; T. Faestermann; F. Farinon; F. Finke; K. Geibel; J. Gerl; R. Gernhaeuser; N. Goel; A. Gottardo; J. Grebosz; C. Hinke; R. Hoischen; G. Ilie; H. Iwasaki; J. Jolie; A. Kaskas; I. Kojouharov; R. Kruecken; N. Kurz; E. Merchan; C. Nociforo; J. Nyberg; M. Pfuetzner; A. Prochazka; Zs Podolyak; P. H. Regan; P. Reiter; S. Rinta-Antila; C. Scholl; H. Schaffner; P. -A. Soderstrom; N. Warr; H. Weick; H. -J. Wollersheim; P. J. Woods; F. Nowacki; K. Sieja

doi:10.1103/PhysRevLett.107.172502

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16(+) Spin-Gap Isomer in Cd-96

B. S. Nara Singh, Z. Liu, R. Wadsworth, H. Grawe, T. S. Brock, P. Boutachkov, N. Braun, A. Blazhev, M. Gorska, S. Pietri, …

Physical review letters, Vol.107(17)

18/10/2011

DOI: https://doi.org/10.1103/PhysRevLett.107.172502

PMID: 22107511

Abstract

Physical Sciences

Physics

Physics, Multidisciplinary

Science & Technology

A beta-decaying high-spin isomer in Cd-96, with a half-life T-1/2 = 0.29(-0.10)(+0.11) s, has been established in a stopped beam rare isotope spectroscopic investigations at GSI (RISING) experiment. The nuclei were produced using the fragmentation of a primary beam of Xe-124 on a Be-9 target. From the half-life and the observed gamma decays in the daughter nucleus, Ag-96, we conclude that the beta-decaying state is the long predicted 16(+) "spin-gap'' isomer. Shell-model calculations, using the Gross-Frenkel interaction and the pi nu(p(1/2,)g(9/2)) model space, show that the isoscalar component of the neutron-proton interaction is essential to explain the origin of the isomer. Core excitations across the N = Z = 50 gaps and the Gamow-Teller strength, Bd(GT) distributions have been studied via large-scale shell-model calculations using the pi nu(g, d, s) model space to compare with the experimental B(GT) value obtained from the half-life of the isomer.

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Title: 16(+) Spin-Gap Isomer in Cd-96
Creators: B. S. Nara Singh - Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England
Z. Liu - University of Edinburgh
R. Wadsworth - University of York
H. Grawe - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
T. S. Brock - University of York
P. Boutachkov - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
N. Braun - University of Cologne
A. Blazhev - University of Cologne
M. Gorska - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
S. Pietri - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
D. Rudolph - Lund University
C. Domingo-Pardo - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
S. J. Steer - University of Surrey
A. Atac - Ankara University
L. Bettermann - University of Cologne
L. Caceres - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
K. Eppinger - Technical University of Munich
T. Engert - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
T. Faestermann - Technical University of Munich
F. Farinon - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
F. Finke - University of Cologne
K. Geibel - University of Cologne
J. Gerl - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
R. Gernhaeuser - Technical University of Munich
N. Goel - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
A. Gottardo - University of Edinburgh
J. Grebosz - Inst Nucl Phys PAN, Krakow, Poland
C. Hinke - Technical University of Munich
R. Hoischen - Lund University
G. Ilie - University of Cologne
H. Iwasaki - University of Cologne
J. Jolie - University of Cologne
A. Kaskas - Ankara University
I. Kojouharov - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
R. Kruecken - Technical University of Munich
N. Kurz - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
E. Merchan - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
C. Nociforo - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
J. Nyberg - Uppsala University
M. Pfuetzner - University of Warsaw
A. Prochazka - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
Zs Podolyak - University of Surrey
P. H. Regan - University of Surrey
P. Reiter - University of Cologne
S. Rinta-Antila - University of Liverpool
C. Scholl - University of Cologne
H. Schaffner - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
P. -A. Soderstrom - Uppsala University
N. Warr - University of Cologne
H. Weick - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
H. -J. Wollersheim - GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
P. J. Woods - University of Edinburgh
F. Nowacki - Université de Strasbourg
K. Sieja - Université de Strasbourg
Publication Details: Physical review letters, Vol.107(17)
Publisher: Amer Physical Soc
Number of pages: 5
Publication Date: 18/10/2011
Grant note: DFG cluster of excellence Origin and Structure of the Universe; German Research Foundation (DFG) ST/F012012/1; ST/J000124/1 / Science and Technology Facilities Council; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) 06KY205I; 06KY9136I; 06MT9156 / German BMBF; Federal Ministry of Education & Research (BMBF) ST/F012012/1; ST/J000124/1 / STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) UK STFC; UK Research & Innovation (UKRI); Science & Technology Facilities Council (STFC) Swedish Research Council; Swedish Research Council for Health Working Life & Welfare (Forte); Swedish Research Council Formas
Identifiers: 99783489602346; WOS:000296374100004
Academic Unit: School of Maths and Physics
Language: English
Resource Type: Journal article

16(+) Spin-Gap Isomer in Cd-96

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