Nuclear moment measurements of neutron-rich aluminum isotopes using spin-polarized RI beams: Determination of the boundary of the "island of inversion"

D. Kameda; H. Ueno; K. Asahi; M. Takemura; D. Nagae; K. Shimada; A. Yoshimi; Y. Kobayashi; T. Haseyama; M. Uchida; K. Takase; T. Arai; Takeshi Inoue; S. Suda; J. Murata; Hirokazu Kawamura; H. Watanabe; M. Ishihara

doi:10.1063/1.2750909

Nuclear moment measurements of neutron-rich aluminum isotopes using spin-polarized RI beams: Determination of the boundary of the "island of inversion"

D. Kameda, H. Ueno, K. Asahi, M. Takemura, D. Nagae, K. Shimada, A. Yoshimi, Y. Kobayashi, T. Haseyama, M. Uchida, K. Takase, T. Arai, Takeshi Inoue, S. Suda, J. Murata, Hirokazu Kawamura, H. Watanabe, M. Ishihara

Creative Interdisciplinary Research Division

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

Abstract

The electric quadrupole moment Q for the ground state of ³²Al has been measured using the β-NMR technique. Spin-polarized ³²Al nuclei were obtained from the fragmentation of ⁴⁰Ar projectiles at E/A = 95 MeV/nucleon, and were implanted in a single crystal α-Al ₂O₃ stopper. The quadrupole moment was deduced from the measured quadrupole coupling constant. The obtained value, Q( ³²Al_g.s.) = 24(2) mb, was well reproduced by shell model calculations within the sd shell, indicating that ³²Al is a normal sd-shell nucleus. The result is in sharp contrast to the strongly deformed nuclei ³²Mg and ³¹Mg neighboring the ³²Al isotope.

Original language	English
Title of host publication	Proceedings of the 17th International Spin Physics Symposium
Pages	845-848
Number of pages	4
DOIs	https://doi.org/10.1063/1.2750909
Publication status	Published - 2007 Sept 24
Event	17th International Spin Physics Symposium - Kyoto, Japan Duration: 2006 Oct 2 → 2006 Oct 7

Publication series

Name	AIP Conference Proceedings
Volume	915
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	17th International Spin Physics Symposium
Country/Territory	Japan
City	Kyoto
Period	06/10/2 → 06/10/7

Keywords

Electric quadrupole moment
Nuclear shell structure
β-NMR

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Ecology
Plant Science
Physics and Astronomy(all)
Nature and Landscape Conservation

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10.1063/1.2750909

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Kameda, D., Ueno, H., Asahi, K., Takemura, M., Nagae, D., Shimada, K., Yoshimi, A., Kobayashi, Y., Haseyama, T., Uchida, M., Takase, K., Arai, T., Inoue, T., Suda, S., Murata, J., Kawamura, H., Watanabe, H., & Ishihara, M. (2007). Nuclear moment measurements of neutron-rich aluminum isotopes using spin-polarized RI beams: Determination of the boundary of the "island of inversion". In Proceedings of the 17th International Spin Physics Symposium (pp. 845-848). (AIP Conference Proceedings; Vol. 915). https://doi.org/10.1063/1.2750909

Nuclear moment measurements of neutron-rich aluminum isotopes using spin-polarized RI beams: Determination of the boundary of the "island of inversion". / Kameda, D.; Ueno, H.; Asahi, K. et al.
Proceedings of the 17th International Spin Physics Symposium. 2007. p. 845-848 (AIP Conference Proceedings; Vol. 915).

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

Kameda, D, Ueno, H, Asahi, K, Takemura, M, Nagae, D, Shimada, K, Yoshimi, A, Kobayashi, Y, Haseyama, T, Uchida, M, Takase, K, Arai, T, Inoue, T, Suda, S, Murata, J, Kawamura, H, Watanabe, H & Ishihara, M 2007, Nuclear moment measurements of neutron-rich aluminum isotopes using spin-polarized RI beams: Determination of the boundary of the "island of inversion". in Proceedings of the 17th International Spin Physics Symposium. AIP Conference Proceedings, vol. 915, pp. 845-848, 17th International Spin Physics Symposium, Kyoto, Japan, 06/10/2. https://doi.org/10.1063/1.2750909

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title = "Nuclear moment measurements of neutron-rich aluminum isotopes using spin-polarized RI beams: Determination of the boundary of the {"}island of inversion{"}",

abstract = "The electric quadrupole moment Q for the ground state of 32Al has been measured using the β-NMR technique. Spin-polarized 32Al nuclei were obtained from the fragmentation of 40Ar projectiles at E/A = 95 MeV/nucleon, and were implanted in a single crystal α-Al 2O3 stopper. The quadrupole moment was deduced from the measured quadrupole coupling constant. The obtained value, Q( 32Alg.s.) = 24(2) mb, was well reproduced by shell model calculations within the sd shell, indicating that 32Al is a normal sd-shell nucleus. The result is in sharp contrast to the strongly deformed nuclei 32Mg and 31Mg neighboring the 32Al isotope.",

keywords = "Electric quadrupole moment, Nuclear shell structure, β-NMR",

author = "D. Kameda and H. Ueno and K. Asahi and M. Takemura and D. Nagae and K. Shimada and A. Yoshimi and Y. Kobayashi and T. Haseyama and M. Uchida and K. Takase and T. Arai and Takeshi Inoue and S. Suda and J. Murata and Hirokazu Kawamura and H. Watanabe and M. Ishihara",

year = "2007",

month = sep,

day = "24",

doi = "10.1063/1.2750909",

language = "English",

isbn = "0735404232",

series = "AIP Conference Proceedings",

pages = "845--848",

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T1 - Nuclear moment measurements of neutron-rich aluminum isotopes using spin-polarized RI beams

T2 - 17th International Spin Physics Symposium

AU - Kameda, D.

AU - Ueno, H.

AU - Asahi, K.

AU - Takemura, M.

AU - Nagae, D.

AU - Shimada, K.

AU - Yoshimi, A.

AU - Kobayashi, Y.

AU - Haseyama, T.

AU - Uchida, M.

AU - Takase, K.

AU - Arai, T.

AU - Inoue, Takeshi

AU - Suda, S.

AU - Murata, J.

AU - Kawamura, Hirokazu

AU - Watanabe, H.

AU - Ishihara, M.

PY - 2007/9/24

Y1 - 2007/9/24

N2 - The electric quadrupole moment Q for the ground state of 32Al has been measured using the β-NMR technique. Spin-polarized 32Al nuclei were obtained from the fragmentation of 40Ar projectiles at E/A = 95 MeV/nucleon, and were implanted in a single crystal α-Al 2O3 stopper. The quadrupole moment was deduced from the measured quadrupole coupling constant. The obtained value, Q( 32Alg.s.) = 24(2) mb, was well reproduced by shell model calculations within the sd shell, indicating that 32Al is a normal sd-shell nucleus. The result is in sharp contrast to the strongly deformed nuclei 32Mg and 31Mg neighboring the 32Al isotope.

AB - The electric quadrupole moment Q for the ground state of 32Al has been measured using the β-NMR technique. Spin-polarized 32Al nuclei were obtained from the fragmentation of 40Ar projectiles at E/A = 95 MeV/nucleon, and were implanted in a single crystal α-Al 2O3 stopper. The quadrupole moment was deduced from the measured quadrupole coupling constant. The obtained value, Q( 32Alg.s.) = 24(2) mb, was well reproduced by shell model calculations within the sd shell, indicating that 32Al is a normal sd-shell nucleus. The result is in sharp contrast to the strongly deformed nuclei 32Mg and 31Mg neighboring the 32Al isotope.

KW - Electric quadrupole moment

KW - Nuclear shell structure

KW - β-NMR

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SN - 9780735404236

T3 - AIP Conference Proceedings

SP - 845

EP - 848

BT - Proceedings of the 17th International Spin Physics Symposium

Y2 - 2 October 2006 through 7 October 2006

ER -

Nuclear moment measurements of neutron-rich aluminum isotopes using spin-polarized RI beams: Determination of the boundary of the "island of inversion"

Abstract

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