Spin-parity assignments in ^<15>C^* by a new method : β-delayed spectroscopy for a spin-polarized nucleus

Miyatake, H.; Ueno, H.; Yamamoto, Y.; Aoi, N.; Asahi, K.; Ideguchi, E.; Ishihara, M.; Izumi, H.; Kishida, T.; Kubo, T.; Mitsuoka, S.; Mizoi, Y.; Notani, M.; Ogawa, H.; Ozawa, A.; Sasaki, M.; Shimoda, T.; Shirakura, T.; Takahashi, N.; Tanimoto, S.; Yoneda, K.

doi:https://doi.org/10.1103/PhysRevC.67.014306

Spin-parity assignments in ^<15>C^* by a new method : β-delayed spectroscopy for a spin-polarized nucleus

Miyatake, H.; Ueno, H.; Yamamoto, Y. et al.

Physical Review C, 2003, 67(1), 014306

アクセス数:2,203件（2025-07-09 09:28 集計）

固定URL: https://hdl.handle.net/11094/23139

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タイトル	Spin-parity assignments in ^<15>C^* by a new method : β-delayed spectroscopy for a spin-polarized nucleus
著者	著者名 Miyatake, H.
	著者名 Ueno, H.
	著者名 Yamamoto, Y.
	NRID 1000000311647 1000000311647 ORCID 0000-0003-3303-8542 0000-0003-3303-8542 researchmap permalink aoinori aoinori Scopus Author ID 8522086100 8522086100 著者名 Aoi, N.
	著者名 Asahi, K.
	著者名 Ideguchi, E.
	著者名 Ishihara, M.
	著者名 Izumi, H.
	著者名 Kishida, T.
	著者名 Kubo, T.
	著者名 Mitsuoka, S.
	著者名 Mizoi, Y.
	著者名 Notani, M.
	著者名 Ogawa, H.
	著者名 Ozawa, A.
	NRID 1000060089737 1000060089737 著者名 Sasaki, M.
	著者名 Shimoda, T.
	著者名 Shirakura, T.
	著者名 Takahashi, N.
	著者名 Tanimoto, S.
	著者名 Yoneda, K.
抄録	We propose a method of spin-parity assignments in decay spectroscopy. Its feasibility was tested for the β-delayed neutron decay of spin-polarized ^<15>B. The β-decay asymmetries were measured in coincidence with the delayed neutrons, and the AP values were evaluated for five allowed transitions leading to the excited states in ^<15>C (E_x=3.103, 4.220, 4.657, 5.866, and 6.426 MeV). The spin parities of the former three states were uniquely assigned as 1/2^-, 5/2^-, and 3/2^-, respectively. These assignments are consistent with the previous assignments. Because of insufficient statistics for the 5.866-MeV state (1/2^-), an incorrect assignment (3/2^-) could not be excluded within the 1σ deviation. The spin-parity of the 6.417-MeV state is suggested to be 1/2^-. The peak analysis with detector response in the neutron time of flight spectra enabled precise determinations of the level energies and widths. The level widths were determined for the first time. The present method is also applicable for β-delayed proton, α, and γ decays, and it can be a powerful tool for spectroscopic studies of nuclei far from the stability.
出版者	American Physical Society
収録物名	Physical Review C
巻(号)	67(1)
ページ	014306
刊行年月	2003-01-17
言語	英語
ハンドルURL	https://hdl.handle.net/11094/23139
PISSN	05562813
NCID	AA00773613
関連情報 (references)	URI http://prc.aps.org/abstract/PRC/v67/i1/e014306
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1103/PhysRevC.67.014306
アクセス権	open access
権利情報	Miyatake, H. , Ueno, H. , Yamamoto, Y. , Aoi, N. , Asahi, K. , Ideguchi, E. , Ishihara, M. , Izumi, H. , Kishida, T. , Kubo, T. , Mitsuoka, S. , Mizoi, Y. , Notani, M. , Ogawa, H. , Ozawa, A. , Sasaki, M. , Shimoda, T. , Shirakura, T. , Takahashi, N. , Tanimoto, S. , Yoneda, K., Physical Review C, 67, 014306, 2003 "Copyright (2003) 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. 2003, 67(1), p. 014306
DC.title	Spin-parity assignments in ^<15>C^* by a new method : β-delayed spectroscopy for a spin-polarized nucleus
DC.creator	Miyatake, H.
	Ueno, H.
	Yamamoto, Y.
	Aoi, N.
	Asahi, K.
	Ideguchi, E.
	Ishihara, M.
	Izumi, H.
	Kishida, T.
	Kubo, T.
	Mitsuoka, S.
	Mizoi, Y.
	Notani, M.
	Ogawa, H.
	Ozawa, A.
	Sasaki, M.
	Shimoda, T.
	Shirakura, T.
	Takahashi, N.
	Tanimoto, S.
	Yoneda, K.
DC.publisher	American Physical Society
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2003-01-17
DC.identifier	https://doi.org/10.1103/PhysRevC.67.014306
DC.relation' scheme='DCTERMS.URI	http://prc.aps.org/abstract/PRC/v67/i1/e014306
DCTERMS.abstract	We propose a method of spin-parity assignments in decay spectroscopy. Its feasibility was tested for the β-delayed neutron decay of spin-polarized ^<15>B. The β-decay asymmetries were measured in coincidence with the delayed neutrons, and the AP values were evaluated for five allowed transitions leading to the excited states in ^<15>C (E_x=3.103, 4.220, 4.657, 5.866, and 6.426 MeV). The spin parities of the former three states were uniquely assigned as 1/2^-, 5/2^-, and 3/2^-, respectively. These assignments are consistent with the previous assignments. Because of insufficient statistics for the 5.866-MeV state (1/2^-), an incorrect assignment (3/2^-) could not be excluded within the 1σ deviation. The spin-parity of the 6.417-MeV state is suggested to be 1/2^-. The peak analysis with detector response in the neutron time of flight spectra enabled precise determinations of the level energies and widths. The level widths were determined for the first time. The present method is also applicable for β-delayed proton, α, and γ decays, and it can be a powerful tool for spectroscopic studies of nuclei far from the stability.
DC.rights	Miyatake, H. , Ueno, H. , Yamamoto, Y. , Aoi, N. , Asahi, K. , Ideguchi, E. , Ishihara, M. , Izumi, H. , Kishida, T. , Kubo, T. , Mitsuoka, S. , Mizoi, Y. , Notani, M. , Ogawa, H. , Ozawa, A. , Sasaki, M. , Shimoda, T. , Shirakura, T. , Takahashi, N. , Tanimoto, S. , Yoneda, K., Physical Review C, 67, 014306, 2003 "Copyright (2003) by the American Physical Society."
DC.format	23139
citation_title	Spin-parity assignments in ^<15>C^* by a new method : β-delayed spectroscopy for a spin-polarized nucleus
citation_author	Miyatake, H.
	Ueno, H.
	Yamamoto, Y.
	Aoi, N.
	Asahi, K.
	Ideguchi, E.
	Ishihara, M.
	Izumi, H.
	Kishida, T.
	Kubo, T.
	Mitsuoka, S.
	Mizoi, Y.
	Notani, M.
	Ogawa, H.
	Ozawa, A.
	Sasaki, M.
	Shimoda, T.
	Shirakura, T.
	Takahashi, N.
	Tanimoto, S.
	Yoneda, K.
citation_publisher	American Physical Society
citation_language	英語
citation_date	2003-01-17
citation_journal_title	Physical Review C
citation_volume	67
citation_issue	1
citation_firstpage	014306
citation_doi	https://doi.org/10.1103/PhysRevC.67.014306
citation_public_url	https://hdl.handle.net/11094/23139
citation_abstract_html_url	http://prc.aps.org/abstract/PRC/v67/i1/e014306

Spin-parity assignments in ^<15>C^* by a new method : β-delayed spectroscopy for a spin-polarized nucleus

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