Bound excited states in 27F

Z. Elekes, Zs Dombrádi, A. Saito, N. Aoi, H. Baba, K. Demichi, Zs Fülöp, J. Gibelin, T. Gomi, H. Hasegawa, N. Imai, M. Ishihara, H. Iwasaki, S. Kanno, S. Kawai, T. Kishida, T. Kubo, K. Kurita, Y. Matsuyama, S. MichimasaT. Minemura, T. Motobayashi, M. Notani, T. K. Ohnishi, H. J. Ong, S. Ota, A. Ozawa, H. K. Sakai, H. Sakurai, S. Shimoura, E. Takeshita, S. Takeuchi, M. Tamaki, Y. Togano, K. Yamada, Y. Yanagisawa, K. Yoneda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The 1H(27F,25,26,27F) reactions have been studied at 40 MeV/nucleon average energy using a liquid hydrogen target. For 25F, 26F and 27F nuclei, we have observed two γ-ray peaks each originating from the decay of two bound excited states. This is the first sign of the existence of bound excited states in 26,27F. The presence of a single bound excited state in 27F is a clear indication of a substantial change in the structure of the fluorine isotopes approaching the neutron dripline. The proposed second excited states in 25,26,27F nuclei have no counterparts in either the psd or the sdpf shell model calculations suggesting the appearance of nucler structure effects lying out of these model spaces.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages383-385
Number of pages3
Volume819
DOIs
Publication statusPublished - Mar 13 2006
Event12th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics - Notre Dame, IN, United States
Duration: Sep 4 2005Sep 9 2005

Other

Other12th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics
CountryUnited States
CityNotre Dame, IN
Period9/4/059/9/05

Fingerprint

fluorine isotopes
excitation
nuclei
liquid hydrogen
rays
indication
neutrons
decay
energy

Keywords

  • γ-spectroscopy
  • F excited states
  • Proton scattering
  • Radioactive beam

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Elekes, Z., Dombrádi, Z., Saito, A., Aoi, N., Baba, H., Demichi, K., ... Yoneda, K. (2006). Bound excited states in 27F. In AIP Conference Proceedings (Vol. 819, pp. 383-385) https://doi.org/10.1063/1.2187889

Bound excited states in 27F. / Elekes, Z.; Dombrádi, Zs; Saito, A.; Aoi, N.; Baba, H.; Demichi, K.; Fülöp, Zs; Gibelin, J.; Gomi, T.; Hasegawa, H.; Imai, N.; Ishihara, M.; Iwasaki, H.; Kanno, S.; Kawai, S.; Kishida, T.; Kubo, T.; Kurita, K.; Matsuyama, Y.; Michimasa, S.; Minemura, T.; Motobayashi, T.; Notani, M.; Ohnishi, T. K.; Ong, H. J.; Ota, S.; Ozawa, A.; Sakai, H. K.; Sakurai, H.; Shimoura, S.; Takeshita, E.; Takeuchi, S.; Tamaki, M.; Togano, Y.; Yamada, K.; Yanagisawa, Y.; Yoneda, K.

AIP Conference Proceedings. Vol. 819 2006. p. 383-385.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Elekes, Z, Dombrádi, Z, Saito, A, Aoi, N, Baba, H, Demichi, K, Fülöp, Z, Gibelin, J, Gomi, T, Hasegawa, H, Imai, N, Ishihara, M, Iwasaki, H, Kanno, S, Kawai, S, Kishida, T, Kubo, T, Kurita, K, Matsuyama, Y, Michimasa, S, Minemura, T, Motobayashi, T, Notani, M, Ohnishi, TK, Ong, HJ, Ota, S, Ozawa, A, Sakai, HK, Sakurai, H, Shimoura, S, Takeshita, E, Takeuchi, S, Tamaki, M, Togano, Y, Yamada, K, Yanagisawa, Y & Yoneda, K 2006, Bound excited states in 27F. in AIP Conference Proceedings. vol. 819, pp. 383-385, 12th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics, Notre Dame, IN, United States, 9/4/05. https://doi.org/10.1063/1.2187889
Elekes Z, Dombrádi Z, Saito A, Aoi N, Baba H, Demichi K et al. Bound excited states in 27F. In AIP Conference Proceedings. Vol. 819. 2006. p. 383-385 https://doi.org/10.1063/1.2187889
Elekes, Z. ; Dombrádi, Zs ; Saito, A. ; Aoi, N. ; Baba, H. ; Demichi, K. ; Fülöp, Zs ; Gibelin, J. ; Gomi, T. ; Hasegawa, H. ; Imai, N. ; Ishihara, M. ; Iwasaki, H. ; Kanno, S. ; Kawai, S. ; Kishida, T. ; Kubo, T. ; Kurita, K. ; Matsuyama, Y. ; Michimasa, S. ; Minemura, T. ; Motobayashi, T. ; Notani, M. ; Ohnishi, T. K. ; Ong, H. J. ; Ota, S. ; Ozawa, A. ; Sakai, H. K. ; Sakurai, H. ; Shimoura, S. ; Takeshita, E. ; Takeuchi, S. ; Tamaki, M. ; Togano, Y. ; Yamada, K. ; Yanagisawa, Y. ; Yoneda, K. / Bound excited states in 27F. AIP Conference Proceedings. Vol. 819 2006. pp. 383-385
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AU - Dombrádi, Zs

AU - Saito, A.

AU - Aoi, N.

AU - Baba, H.

AU - Demichi, K.

AU - Fülöp, Zs

AU - Gibelin, J.

AU - Gomi, T.

AU - Hasegawa, H.

AU - Imai, N.

AU - Ishihara, M.

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AU - Kanno, S.

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AU - Kishida, T.

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AU - Kurita, K.

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AU - Michimasa, S.

AU - Minemura, T.

AU - Motobayashi, T.

AU - Notani, M.

AU - Ohnishi, T. K.

AU - Ong, H. J.

AU - Ota, S.

AU - Ozawa, A.

AU - Sakai, H. K.

AU - Sakurai, H.

AU - Shimoura, S.

AU - Takeshita, E.

AU - Takeuchi, S.

AU - Tamaki, M.

AU - Togano, Y.

AU - Yamada, K.

AU - Yanagisawa, Y.

AU - Yoneda, K.

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N2 - The 1H(27F,25,26,27F) reactions have been studied at 40 MeV/nucleon average energy using a liquid hydrogen target. For 25F, 26F and 27F nuclei, we have observed two γ-ray peaks each originating from the decay of two bound excited states. This is the first sign of the existence of bound excited states in 26,27F. The presence of a single bound excited state in 27F is a clear indication of a substantial change in the structure of the fluorine isotopes approaching the neutron dripline. The proposed second excited states in 25,26,27F nuclei have no counterparts in either the psd or the sdpf shell model calculations suggesting the appearance of nucler structure effects lying out of these model spaces.

AB - The 1H(27F,25,26,27F) reactions have been studied at 40 MeV/nucleon average energy using a liquid hydrogen target. For 25F, 26F and 27F nuclei, we have observed two γ-ray peaks each originating from the decay of two bound excited states. This is the first sign of the existence of bound excited states in 26,27F. The presence of a single bound excited state in 27F is a clear indication of a substantial change in the structure of the fluorine isotopes approaching the neutron dripline. The proposed second excited states in 25,26,27F nuclei have no counterparts in either the psd or the sdpf shell model calculations suggesting the appearance of nucler structure effects lying out of these model spaces.

KW - γ-spectroscopy

KW - F excited states

KW - Proton scattering

KW - Radioactive beam

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