βdecay of the 21/2^+ isomer in ^<93>Mo and level structure of ^<93>Nb

Hori, T.; Masue, T.; Odahara, A.; Kura, K.; Tajiri, K.; Shimoda, T.; Fukuchi, T.; Suzuki, T.; Wakabayashi, Y.; Gono, Y.; Ogawa, K.

doi:https://doi.org/10.1103/PhysRevC.80.034306

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タイトル	βdecay of the 21/2^+ isomer in ^<93>Mo and level structure of ^<93>Nb
著者	著者名 Hori, T.
	著者名 Masue, T.
	著者名 Odahara, A.
	著者名 Kura, K.
	著者名 Tajiri, K.
	著者名 Shimoda, T.
	著者名 Fukuchi, T.
	著者名 Suzuki, T.
	著者名 Wakabayashi, Y.
	著者名 Gono, Y.
	著者名 Ogawa, K.
抄録	The γ rays associated with β decay of the 21/2^+ isomer in ^<93>Mo (Ex=2.425 MeV, T_<1/2>=6.85 h) were measured with a selective sensitivity to long-lived isomer decays. A new 1262-keV transition was found in the γ-γ coincidence measurement, and it was attributed to a transition in ^<93>Nb, which is the daughter nucleus of the β decay of the ^<93>Mo isomer, from the 2.753- to the 1.491-MeV levels. Accurate γ-ray intensity balances have determined the β-decay intensity from the ^<93>Mo isomer to the 2.753-MeV level in ^<93>Nb and placed no appreciable intensity for the previously reported β-decay branching to the 2.180-MeV level, for which a recent in-beam γ-ray experiment assigned to be I^π = 17/2^-. Based on the γ-ray intensities from the 2.753-MeV level, spin-parity assignment of this level was revised from 21/2^+ to 19/2^+. The observed β-decay intensity and the spin-parity assignment were explained by the jj-coupling shell model calculations.
出版者	American Physical Society
収録物名	Physical Review C
巻(号)	80(3)
ページ	034306
刊行年月	2009-09-09
言語	英語
ハンドルURL	https://hdl.handle.net/11094/23125
PISSN	05562813
NCID	AA00773613
関連情報 (references)	URI http://prc.aps.org/abstract/PRC/v80/i3/e034306
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1103/PhysRevC.80.034306
アクセス権	open access
権利情報	Hori, T. , Masue, T. , Odahara, A. , Kura, K. , Tajiri, K. , Shimoda, T. , Fukuchi, T. , Suzuki, T. , Wakabayashi, Y. , Gono, Y. , Ogawa, K., Physical Review C, 80, 034306, 2009 "Copyright (2009) by the American Physical Society."
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Physical Review C. 2009, 80(3), p. 034306
DC.title	βdecay of the 21/2^+ isomer in ^<93>Mo and level structure of ^<93>Nb
DC.creator	Hori, T.
	Masue, T.
	Odahara, A.
	Kura, K.
	Tajiri, K.
	Shimoda, T.
	Fukuchi, T.
	Suzuki, T.
	Wakabayashi, Y.
	Gono, Y.
	Ogawa, K.
DC.publisher	American Physical Society
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2009-09-09
DC.identifier	https://doi.org/10.1103/PhysRevC.80.034306
DC.relation' scheme='DCTERMS.URI	http://prc.aps.org/abstract/PRC/v80/i3/e034306
DCTERMS.abstract	The γ rays associated with β decay of the 21/2^+ isomer in ^<93>Mo (Ex=2.425 MeV, T_<1/2>=6.85 h) were measured with a selective sensitivity to long-lived isomer decays. A new 1262-keV transition was found in the γ-γ coincidence measurement, and it was attributed to a transition in ^<93>Nb, which is the daughter nucleus of the β decay of the ^<93>Mo isomer, from the 2.753- to the 1.491-MeV levels. Accurate γ-ray intensity balances have determined the β-decay intensity from the ^<93>Mo isomer to the 2.753-MeV level in ^<93>Nb and placed no appreciable intensity for the previously reported β-decay branching to the 2.180-MeV level, for which a recent in-beam γ-ray experiment assigned to be I^π = 17/2^-. Based on the γ-ray intensities from the 2.753-MeV level, spin-parity assignment of this level was revised from 21/2^+ to 19/2^+. The observed β-decay intensity and the spin-parity assignment were explained by the jj-coupling shell model calculations.
DC.rights	Hori, T. , Masue, T. , Odahara, A. , Kura, K. , Tajiri, K. , Shimoda, T. , Fukuchi, T. , Suzuki, T. , Wakabayashi, Y. , Gono, Y. , Ogawa, K., Physical Review C, 80, 034306, 2009 "Copyright (2009) by the American Physical Society."
DC.format	application/pdf
citation_title	βdecay of the 21/2^+ isomer in ^<93>Mo and level structure of ^<93>Nb
citation_author	Hori, T.
	Masue, T.
	Odahara, A.
	Kura, K.
	Tajiri, K.
	Shimoda, T.
	Fukuchi, T.
	Suzuki, T.
	Wakabayashi, Y.
	Gono, Y.
	Ogawa, K.
citation_publisher	American Physical Society
citation_language	英語
citation_date	2009-09-09
citation_journal_title	Physical Review C
citation_volume	80
citation_issue	3
citation_firstpage	034306
citation_doi	https://doi.org/10.1103/PhysRevC.80.034306
citation_public_url	https://hdl.handle.net/11094/23125
citation_abstract_html_url	http://prc.aps.org/abstract/PRC/v80/i3/e034306

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