Decay spectroscopy of Cd-129

Saito Y.; Dillmann I; Krucken R.Bernier N.Ball G. C.Bowry M.Andreoiu C.Bidaman H.Bildstein VBoubel P.Burbadge C.Caballero-Folch R.Dunlop M. R.Dunlop R.Evitts L. J.Garcia F. H.Garnsworthy A. B.Garrett P. E.Grawe H.Hackman G.Hallam S.Henderson J.Ilyushkin S.Jungclaus A.Kisliuk D.Lassen J.Li R.MacConnachie E.MacLean A. D.McGee E.Moukaddam M.Olaizola B.Padilla-Rodal E.Park J.Paetkau O.Petrache C. M.Pore J. L.Radich A. J.Ruotsalainen P.Smallcombe J.Smith J. K.Svensson C. E.Teigelhofer A.Turko J.Zidar T.

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Decay spectroscopy of Cd-129

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Excited states of 129In populated following the beta decay of Cd-129 were experimentally studied with the GRIFFIN spectrometer at the ISAC facility of TRIUMF, Canada. A 480-MeV proton beam was impinged on a uranium carbide target and Cd-129 was extracted using the Ion Guide Laser Ion Source (IG-LIS). beta and. rays following the decay of 129Cd were detected with the GRIFFIN spectrometer comprising the plastic scintillator SCEPTAR and 16 high-purity germanium (HPGe) clover-type detectors. From the beta-gamma-gamma coincidence analysis, 32 new transitions and seven new excited states were established, expanding the previously known level scheme of In-129. The log ft values deduced from the beta-feeding intensities suggest that some of the high-lying states were populated by the nu 0g7(/2) -> pi 0g(9/2) allowed Gamow-Teller (GT) transition, which indicates that the allowed GT transition is more dominant in the Cd-129 decay than previously reported. Observation of fragmented Gamow-Teller strengths is consistent with theoretical calculations.

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《Physical review, C》 |2020年第2期|共13页
作者
Saito Y.; Dillmann I; Krucken R.Bernier N.Ball G. C.Bowry M.Andreoiu C.Bidaman H.Bildstein VBoubel P.Burbadge C.Caballero-Folch R.Dunlop M. R.Dunlop R.Evitts L. J.Garcia F. H.Garnsworthy A. B.Garrett P. E.Grawe H.Hackman G.Hallam S.Henderson J.Ilyushkin S.Jungclaus A.Kisliuk D.Lassen J.Li R.MacConnachie E.MacLean A. D.McGee E.Moukaddam M.Olaizola B.Padilla-Rodal E.Park J.Paetkau O.Petrache C. M.Pore J. L.Radich A. J.Ruotsalainen P.Smallcombe J.Smith J. K.Svensson C. E.Teigelhofer A.Turko J.Zidar T.;
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Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z4, Canada;

TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada;

Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, CanadaUniv Guelph, Dept Phys, Guelph, ON N1G 2W1, CanadaGSI Helmholtzzentrum Schwerionenforsch GmbH, D-64291 Darmstadt, GermanyColorado Sch Mines, Dept Phys, Golden, CO 80401 USACSIC, Inst Estruct Mat, E-28006 Madrid, SpainUniv Nacl Autonoma Mexico, Inst Ciencias Nucl, AP 70-543, Mexico City 70543, DF, MexicoUniv Paris Saclay, Ctr Sci Nucl & Sci Matiere, CNRS IN2P3, F-91405 Orsay, France;

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中图分类原子核物理学、高能物理学;
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Decay spectroscopy of Cd-129

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