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. 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

Riken
Rikkyo University
GSI Helmholtz Center
Tohoku University
Shanghai Institute of Applied Physics, Chinese Academy of Sciences
University of Tokyo
Tokyo Institute of Technology
Saitama University
Institute of Modern Physics Chinese Academy of Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

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.

Original language	English
Title of host publication	Nuclear Structure and Dynamics 2012 - Proceedings of the International Conference
Pages	71-74
Number of pages	4
DOIs	https://doi.org/10.1063/1.4764205
State	Published - 2012
Externally published	Yes
Event	International Conference on Nuclear Structure and Dynamics 2012 - Opatija, Croatia Duration: 9 Jul 2012 → 13 Jul 2012

Publication series

Name	AIP Conference Proceedings
Volume	1491
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	International Conference on Nuclear Structure and Dynamics 2012
Country/Territory	Croatia
City	Opatija
Period	9/07/12 → 13/07/12

Keywords

Coulomb excitation
Multipole matrix elements
Reaction induced by unstable nuclei

Access to Document

10.1063/1.4764205

Cite this

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

@inproceedings{49256b1963a74bff867b17f93cb23826,

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.",

keywords = "Coulomb excitation, Multipole matrix elements, Reaction induced by unstable nuclei",

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",

year = "2012",

doi = "10.1063/1.4764205",

language = "English",

isbn = "9780735411036",

series = "AIP Conference Proceedings",

pages = "71--74",

booktitle = "Nuclear Structure and Dynamics 2012 - Proceedings of the International Conference",

note = "International Conference on Nuclear Structure and Dynamics 2012 ; Conference date: 09-07-2012 Through 13-07-2012",

}

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, 9/07/12. https://doi.org/10.1063/1.4764205

Hindered proton collectivity in the proton-rich nucleus ²⁸S: Possible magic number Z = 16. / Togano, Y.; Yamada, Y.; Iwasa, N. et al.
Nuclear Structure and Dynamics 2012 - Proceedings of the International Conference. 2012. p. 71-74 (AIP Conference Proceedings; Vol. 1491).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

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

UR - https://www.scopus.com/pages/publications/84873853660

U2 - 10.1063/1.4764205

DO - 10.1063/1.4764205

M3 - Conference contribution

AN - SCOPUS:84873853660

SN - 9780735411036

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

ER -