Hindered proton collectivity in the proton-rich nucleus 28S: Possible magic number Z = 16

Y. Togano; Y. Yamada; N. Iwasa; K. Yamada; T. Motobayashi; N. Aoi; H. Baba; S. Bishop; X. Cai; P. Doornenbal; D. Fang; T. Furukawa; K. Ieki; T. Kawabata; S. Kanno; N. Kobayashi; Y. Kondo; T. Kuboki; N. Kume; K. Kurita; M. Kurokawa; Y. G. Ma; Y. Matsuo; H. Murakami; M. Matsushita; T. Nakamura; K. Okada; S. Ota; Y. Satou; S. Shimoura; R. Shioda; K. N. Tanaka; S. Takeuchi; W. Tian; H. Wang; J. Wang; K. Yoneda

doi:10.1063/1.4764205

Hindered proton collectivity in the proton-rich nucleus ²⁸S: Possible magic number Z = 16

Y. Togano, Y. Yamada, N. Iwasa, K. Yamada, T. Motobayashi, N. Aoi, H. Baba, S. Bishop, X. Cai, P. Doornenbal, D. Fang, T. Furukawa, K. Ieki, T. Kawabata, S. Kanno, N. Kobayashi, Y. Kondo, T. Kuboki, N. Kume, K. KuritaM. Kurokawa, Y. G. Ma, Y. Matsuo, H. Murakami, M. Matsushita, T. Nakamura, K. Okada, S. Ota, Y. Satou, S. Shimoura, R. Shioda, K. N. Tanaka, S. Takeuchi, W. Tian, H. Wang, J. Wang, K. Yoneda

理学研究科・物理学専攻

研究成果: Conference contribution

抄録

The reduced transition probability B(E2;0_gs⁺→ 2₁⁺) for the proton-rich nucleus ²⁸S was determined experimentally using intermediate-energy Coulomb excitation. The resultant B(E2) value 181(31) e²fm⁴ is smaller than those of neighboring N = 12 isotones and Z = 16 isotopes. The double ratio |M _n/M_p|/(N/Z) of the 0_gs⁺→2 ₁⁺ transition in ²⁸S was obtained to be 1.9(2) by evaluating the M_n value from the known B(E2) value of the mirror nucleus ²⁸Mg, showing the hindrance of proton collectivity relative to that of neutrons. These results indicate the emergence of the magic number Z = 16 in ²⁸S.

本文言語	English
ホスト出版物のタイトル	Nuclear Structure and Dynamics 2012 - Proceedings of the International Conference
ページ	71-74
ページ数	4
DOI	https://doi.org/10.1063/1.4764205
出版ステータス	Published - 2012
イベント	International Conference on Nuclear Structure and Dynamics 2012 - Opatija, Croatia 継続期間: 2012 7月 9 → 2012 7月 13

出版物シリーズ

名前	AIP Conference Proceedings
巻	1491
ISSN（印刷版）	0094-243X
ISSN（電子版）	1551-7616

Conference

Conference	International Conference on Nuclear Structure and Dynamics 2012
国/地域	Croatia
City	Opatija
Period	12/7/9 → 12/7/13

ASJC Scopus subject areas

物理学および天文学（全般）

文献へのアクセス

10.1063/1.4764205

他のファイルとリンク

引用スタイル

Togano, Y., Yamada, Y., Iwasa, N., Yamada, K., Motobayashi, T., Aoi, N., Baba, H., Bishop, S., Cai, X., Doornenbal, P., Fang, D., Furukawa, T., Ieki, K., Kawabata, T., Kanno, S., Kobayashi, N., Kondo, Y., Kuboki, T., Kume, N., ... Yoneda, K. (2012). Hindered proton collectivity in the proton-rich nucleus ²⁸S: Possible magic number Z = 16. In Nuclear Structure and Dynamics 2012 - Proceedings of the International Conference (pp. 71-74). (AIP Conference Proceedings; Vol. 1491). https://doi.org/10.1063/1.4764205

Togano, Y, Yamada, Y, Iwasa, N, Yamada, K, Motobayashi, T, Aoi, N, Baba, H, Bishop, S, Cai, X, Doornenbal, P, Fang, D, Furukawa, T, Ieki, K, Kawabata, T, Kanno, S, Kobayashi, N, Kondo, Y, Kuboki, T, Kume, N, Kurita, K, Kurokawa, M, Ma, YG, Matsuo, Y, Murakami, H, Matsushita, M, Nakamura, T, Okada, K, Ota, S, Satou, Y, Shimoura, S, Shioda, R, Tanaka, KN, Takeuchi, S, Tian, W, Wang, H, Wang, J & Yoneda, K 2012, Hindered proton collectivity in the proton-rich nucleus ²⁸S: Possible magic number Z = 16. in Nuclear Structure and Dynamics 2012 - Proceedings of the International Conference. AIP Conference Proceedings, vol. 1491, pp. 71-74, International Conference on Nuclear Structure and Dynamics 2012, Opatija, Croatia, 12/7/9. https://doi.org/10.1063/1.4764205

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title = "Hindered proton collectivity in the proton-rich nucleus 28S: Possible magic number Z = 16",

abstract = "The reduced transition probability B(E2;0gs+→ 21+) for the proton-rich nucleus 28S was determined experimentally using intermediate-energy Coulomb excitation. The resultant B(E2) value 181(31) e2fm4 is smaller than those of neighboring N = 12 isotones and Z = 16 isotopes. The double ratio |M n/Mp|/(N/Z) of the 0gs+→2 1+ transition in 28S was obtained to be 1.9(2) by evaluating the Mn value from the known B(E2) value of the mirror nucleus 28Mg, showing the hindrance of proton collectivity relative to that of neutrons. These results indicate the emergence of the magic number Z = 16 in 28S.",

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author = "Y. Togano and Y. Yamada and N. Iwasa and K. Yamada and T. Motobayashi and N. Aoi and H. Baba and S. Bishop and X. Cai and P. Doornenbal and D. Fang and T. Furukawa and K. Ieki and T. Kawabata and S. Kanno and N. Kobayashi and Y. Kondo and T. Kuboki and N. Kume and K. Kurita and M. Kurokawa and Ma, {Y. G.} and Y. Matsuo and H. Murakami and M. Matsushita and T. Nakamura and K. Okada and S. Ota and Y. Satou and S. Shimoura and R. Shioda and Tanaka, {K. N.} and S. Takeuchi and W. Tian and H. Wang and J. Wang and K. Yoneda",

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T1 - Hindered proton collectivity in the proton-rich nucleus 28S

T2 - International Conference on Nuclear Structure and Dynamics 2012

AU - Togano, Y.

AU - Yamada, Y.

AU - Iwasa, N.

AU - Yamada, K.

AU - Motobayashi, T.

AU - Aoi, N.

AU - Baba, H.

AU - Bishop, S.

AU - Cai, X.

AU - Doornenbal, P.

AU - Fang, D.

AU - Furukawa, T.

AU - Ieki, K.

AU - Kawabata, T.

AU - Kanno, S.

AU - Kobayashi, N.

AU - Kondo, Y.

AU - Kuboki, T.

AU - Kume, N.

AU - Kurita, K.

AU - Kurokawa, M.

AU - Ma, Y. G.

AU - Matsuo, Y.

AU - Murakami, H.

AU - Matsushita, M.

AU - Nakamura, T.

AU - Okada, K.

AU - Ota, S.

AU - Satou, Y.

AU - Shimoura, S.

AU - Shioda, R.

AU - Tanaka, K. N.

AU - Takeuchi, S.

AU - Tian, W.

AU - Wang, H.

AU - Wang, J.

AU - Yoneda, K.

PY - 2012

Y1 - 2012

N2 - The reduced transition probability B(E2;0gs+→ 21+) for the proton-rich nucleus 28S was determined experimentally using intermediate-energy Coulomb excitation. The resultant B(E2) value 181(31) e2fm4 is smaller than those of neighboring N = 12 isotones and Z = 16 isotopes. The double ratio |M n/Mp|/(N/Z) of the 0gs+→2 1+ transition in 28S was obtained to be 1.9(2) by evaluating the Mn value from the known B(E2) value of the mirror nucleus 28Mg, showing the hindrance of proton collectivity relative to that of neutrons. These results indicate the emergence of the magic number Z = 16 in 28S.

AB - The reduced transition probability B(E2;0gs+→ 21+) for the proton-rich nucleus 28S was determined experimentally using intermediate-energy Coulomb excitation. The resultant B(E2) value 181(31) e2fm4 is smaller than those of neighboring N = 12 isotones and Z = 16 isotopes. The double ratio |M n/Mp|/(N/Z) of the 0gs+→2 1+ transition in 28S was obtained to be 1.9(2) by evaluating the Mn value from the known B(E2) value of the mirror nucleus 28Mg, showing the hindrance of proton collectivity relative to that of neutrons. These results indicate the emergence of the magic number Z = 16 in 28S.

KW - Coulomb excitation

KW - Multipole matrix elements

KW - Reaction induced by unstable nuclei

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T3 - AIP Conference Proceedings

SP - 71

EP - 74

BT - Nuclear Structure and Dynamics 2012 - Proceedings of the International Conference

Y2 - 9 July 2012 through 13 July 2012

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