Investigation into behavior of weakly-bound proton via B(GT) measurement for the β decay of 24 Si

Y. Ichikawa, T. K. Onishi, D. Suzuki, H. Iwasaki, V. Banerjee, T. Kubo, A. Chakrabarti, N. Aoi, B. A. Brown, N. Fukuda, S. Kubono, T. Motobayashi, T. Nakabayashi, T. Nakamura, T. Nakao, T. Okumura, H. J. Ong, H. Suzuki, M. K. Suzuki, Takashi TeranishiK. N. Yamada, H. Yamaguchi, H. Sakurai

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

Abstract

The β-decay spectroscopy on 24 Si was carried out in order to investigate the behavior of a weakly-bound s-wave proton. We observed two β transitions to low-lying bound states in 24 Al for the first time. The Gamow-Teller transition strengths B(GT) to the 1 + 1 and 1 + 2 states were deduced to be 0.13(2) and 0.14(1), which were smaller than that of mirror nucleus 24 Ne by 22 % and 10%, respectively. These mirror asymmetries of B(GT) indicate the configuration change in the wave function. By comparing with theoretical shell-model calculations, it is implied that the configuration change is attributed to the lowering of the Is 1/2 orbital.

Original languageEnglish
Title of host publicationNuclear Structure and Dynamics '09 - Proceedings of the International Conference
Pages98-101
Number of pages4
DOIs
Publication statusPublished - Nov 25 2009
EventInternational Conference on Nuclear Structure and Dynamics '09 - Dubrovnik, Croatia
Duration: May 4 2009May 8 2009

Publication series

NameAIP Conference Proceedings
Volume1165
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherInternational Conference on Nuclear Structure and Dynamics '09
CountryCroatia
CityDubrovnik
Period5/4/095/8/09

Fingerprint

mirrors
protons
decay
configurations
asymmetry
wave functions
orbitals
nuclei
spectroscopy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Ichikawa, Y., Onishi, T. K., Suzuki, D., Iwasaki, H., Banerjee, V., Kubo, T., ... Sakurai, H. (2009). Investigation into behavior of weakly-bound proton via B(GT) measurement for the β decay of 24 Si In Nuclear Structure and Dynamics '09 - Proceedings of the International Conference (pp. 98-101). (AIP Conference Proceedings; Vol. 1165). https://doi.org/10.1063/1.3232163

Investigation into behavior of weakly-bound proton via B(GT) measurement for the β decay of 24 Si . / Ichikawa, Y.; Onishi, T. K.; Suzuki, D.; Iwasaki, H.; Banerjee, V.; Kubo, T.; Chakrabarti, A.; Aoi, N.; Brown, B. A.; Fukuda, N.; Kubono, S.; Motobayashi, T.; Nakabayashi, T.; Nakamura, T.; Nakao, T.; Okumura, T.; Ong, H. J.; Suzuki, H.; Suzuki, M. K.; Teranishi, Takashi; Yamada, K. N.; Yamaguchi, H.; Sakurai, H.

Nuclear Structure and Dynamics '09 - Proceedings of the International Conference. 2009. p. 98-101 (AIP Conference Proceedings; Vol. 1165).

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

Ichikawa, Y, Onishi, TK, Suzuki, D, Iwasaki, H, Banerjee, V, Kubo, T, Chakrabarti, A, Aoi, N, Brown, BA, Fukuda, N, Kubono, S, Motobayashi, T, Nakabayashi, T, Nakamura, T, Nakao, T, Okumura, T, Ong, HJ, Suzuki, H, Suzuki, MK, Teranishi, T, Yamada, KN, Yamaguchi, H & Sakurai, H 2009, Investigation into behavior of weakly-bound proton via B(GT) measurement for the β decay of 24 Si in Nuclear Structure and Dynamics '09 - Proceedings of the International Conference. AIP Conference Proceedings, vol. 1165, pp. 98-101, International Conference on Nuclear Structure and Dynamics '09, Dubrovnik, Croatia, 5/4/09. https://doi.org/10.1063/1.3232163
Ichikawa Y, Onishi TK, Suzuki D, Iwasaki H, Banerjee V, Kubo T et al. Investigation into behavior of weakly-bound proton via B(GT) measurement for the β decay of 24 Si In Nuclear Structure and Dynamics '09 - Proceedings of the International Conference. 2009. p. 98-101. (AIP Conference Proceedings). https://doi.org/10.1063/1.3232163
Ichikawa, Y. ; Onishi, T. K. ; Suzuki, D. ; Iwasaki, H. ; Banerjee, V. ; Kubo, T. ; Chakrabarti, A. ; Aoi, N. ; Brown, B. A. ; Fukuda, N. ; Kubono, S. ; Motobayashi, T. ; Nakabayashi, T. ; Nakamura, T. ; Nakao, T. ; Okumura, T. ; Ong, H. J. ; Suzuki, H. ; Suzuki, M. K. ; Teranishi, Takashi ; Yamada, K. N. ; Yamaguchi, H. ; Sakurai, H. / Investigation into behavior of weakly-bound proton via B(GT) measurement for the β decay of 24 Si Nuclear Structure and Dynamics '09 - Proceedings of the International Conference. 2009. pp. 98-101 (AIP Conference Proceedings).
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AU - Banerjee, V.

AU - Kubo, T.

AU - Chakrabarti, A.

AU - Aoi, N.

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AU - Fukuda, N.

AU - Kubono, S.

AU - Motobayashi, T.

AU - Nakabayashi, T.

AU - Nakamura, T.

AU - Nakao, T.

AU - Okumura, T.

AU - Ong, H. J.

AU - Suzuki, H.

AU - Suzuki, M. K.

AU - Teranishi, Takashi

AU - Yamada, K. N.

AU - Yamaguchi, H.

AU - Sakurai, H.

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AB - The β-decay spectroscopy on 24 Si was carried out in order to investigate the behavior of a weakly-bound s-wave proton. We observed two β transitions to low-lying bound states in 24 Al for the first time. The Gamow-Teller transition strengths B(GT) to the 1 + 1 and 1 + 2 states were deduced to be 0.13(2) and 0.14(1), which were smaller than that of mirror nucleus 24 Ne by 22 % and 10%, respectively. These mirror asymmetries of B(GT) indicate the configuration change in the wave function. By comparing with theoretical shell-model calculations, it is implied that the configuration change is attributed to the lowering of the Is 1/2 orbital.

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