Application of Doppler-shift attenuation method to the de-excitation γ rays from the in-flight 12Be beam

N. Imai; N. Aoi; H. J. Ong; H. Sakurai; K. Demichi; H. Kawasaki; H. Baba; Zs Dombrádi; Z. Elekes; N. Fukuda; Zs Fülöp; A. Gelberg; T. Gomi; H. Hasegawa; K. Ishikawa; M. Ishihara; H. Iwasaki; E. Kaneko; S. Kanno; T. Kishida; Y. Kondo; T. Kubo; K. Kurita; S. Michimasa; T. Minemura; M. Miura; T. Motobayashi; T. Nakamura; M. Notani; T. K. Ohnishi; A. Saito; S. Shimoura; T. Sugimoto; M. K. Suzuki; E. Takeshita; S. Takeuchi; M. Tamaki; H. Watanabe; K. Yoneda

doi:10.1063/1.3141658

Application of Doppler-shift attenuation method to the de-excitation γ rays from the in-flight ¹²Be beam

N. Imai
, N. Aoi
, H. J. Ong
, H. Sakurai
, K. Demichi
, H. Kawasaki
, H. Baba
, Zs Dombrádi
, Z. Elekes
, N. Fukuda
, Zs Fülöp
, A. Gelberg
, T. Gomi
, H. Hasegawa
, K. Ishikawa
, M. Ishihara
, H. Iwasaki
, E. Kaneko
, S. Kanno
, T. Kishida

Y. Kondo, T. Kubo, K. Kurita, S. Michimasa, T. Minemura, M. Miura, T. Motobayashi, T. Nakamura, M. Notani, T. K. Ohnishi, A. Saito, S. Shimoura, T. Sugimoto, M. K. Suzuki, E. Takeshita, S. Takeuchi, M. Tamaki, H. Watanabe, K. Yoneda

High Energy Accelerator Research Organization, Institute of Particle and Nuclear Physics
RIKEN
The University of Tokyo
Institute for Nuclear Research
University of Cologne
Institute of Science Tokyo
Rikkyo University

研究成果: 書籍の章/レポート/Proceedings › 会議への寄与 › 査読

抄録

The B(E2;↓) value of the neutron-rich nucleus 12Be has been determined through the measurement of the lifetime of the first 2+ state using a modified Doppler-shift attenuation method (DSAM). The first excited state was produced by the inelastic scattering of the intermediate energy ¹²Be beam off a thick gold target, which played two roles, to excite the beam and to decrease the velocity. The lifetime has been determined to be 2.5±0.7 (stat) ± 0.3 (syst) ps, which gives a B(E2) value of 5.0±1.3±0.5 in Weisskopf units. The result shows a large quadrupole strength in the ground state transition. The B(E2) value together with the deformation length measured by proton inelastic scattering yields a neutron quadrupole matrix element two times larger than those for ¹⁴C and ¹⁶O.

本文言語	英語
ホスト出版物のタイトル	Perspectives in Nuclear Physics - Proceedings of the 6th Japan-Italy Symposium on Heavy-Ion Physics
ページ	265-269
ページ数	5
DOI	https://doi.org/10.1063/1.3141658
出版ステータス	出版済み - 2009
外部発表	はい
イベント	6th Japan-Italy Symposium on Heavy-Ion Physics - Tokai, 日本継続期間: 11 11月 2008 → 15 11月 2008

出版物シリーズ

名前	AIP Conference Proceedings
巻	1120
ISSN（印刷版）	0094-243X
ISSN（電子版）	1551-7616

会議

会議	6th Japan-Italy Symposium on Heavy-Ion Physics
国/地域	日本
City	Tokai
Period	11/11/08 → 15/11/08

文献へのアクセス

10.1063/1.3141658

他のファイルとリンク

Scopusの出版物のリンク

引用スタイル

Imai, N., Aoi, N., Ong, H. J., Sakurai, H., Demichi, K., Kawasaki, H., Baba, H., Dombrádi, Z., Elekes, Z., Fukuda, N., Fülöp, Z., Gelberg, A., Gomi, T., Hasegawa, H., Ishikawa, K., Ishihara, M., Iwasaki, H., Kaneko, E., Kanno, S., ... Yoneda, K. (2009). Application of Doppler-shift attenuation method to the de-excitation γ rays from the in-flight ¹²Be beam. In Perspectives in Nuclear Physics - Proceedings of the 6th Japan-Italy Symposium on Heavy-Ion Physics (pp. 265-269). (AIP Conference Proceedings; Vol. 1120). https://doi.org/10.1063/1.3141658

@inproceedings{ce5e61fdbb7b416599a05a7529ac77f7,

title = "Application of Doppler-shift attenuation method to the de-excitation γ rays from the in-flight 12Be beam",

abstract = "The B(E2;↓) value of the neutron-rich nucleus 12Be has been determined through the measurement of the lifetime of the first 2+ state using a modified Doppler-shift attenuation method (DSAM). The first excited state was produced by the inelastic scattering of the intermediate energy 12Be beam off a thick gold target, which played two roles, to excite the beam and to decrease the velocity. The lifetime has been determined to be 2.5±0.7 (stat) ± 0.3 (syst) ps, which gives a B(E2) value of 5.0±1.3±0.5 in Weisskopf units. The result shows a large quadrupole strength in the ground state transition. The B(E2) value together with the deformation length measured by proton inelastic scattering yields a neutron quadrupole matrix element two times larger than those for 14C and 16O.",

keywords = "Doppler-shift attenuation method, Radioactive beam experiment, Reduced matrix element",

author = "N. Imai and N. Aoi and Ong, \{H. J.\} and H. Sakurai and K. Demichi and H. Kawasaki and H. Baba and Zs Dombr{\'a}di and Z. Elekes and N. Fukuda and Zs F{\"u}l{\"o}p and A. Gelberg and T. Gomi and H. Hasegawa and K. Ishikawa and M. Ishihara and H. Iwasaki and E. Kaneko and S. Kanno and T. Kishida and Y. Kondo and T. Kubo and K. Kurita and S. Michimasa and T. Minemura and M. Miura and T. Motobayashi and T. Nakamura and M. Notani and Ohnishi, \{T. K.\} and A. Saito and S. Shimoura and T. Sugimoto and Suzuki, \{M. K.\} and E. Takeshita and S. Takeuchi and M. Tamaki and H. Watanabe and K. Yoneda",

year = "2009",

doi = "10.1063/1.3141658",

language = "英語",

isbn = "9780735406551",

series = "AIP Conference Proceedings",

pages = "265--269",

booktitle = "Perspectives in Nuclear Physics - Proceedings of the 6th Japan-Italy Symposium on Heavy-Ion Physics",

note = "6th Japan-Italy Symposium on Heavy-Ion Physics ; Conference date: 11-11-2008 Through 15-11-2008",

}

Imai, N, Aoi, N, Ong, HJ, Sakurai, H, Demichi, K, Kawasaki, H, Baba, H, Dombrádi, Z, Elekes, Z, Fukuda, N, Fülöp, Z, Gelberg, A, Gomi, T, Hasegawa, H, Ishikawa, K, Ishihara, M, Iwasaki, H, Kaneko, E, Kanno, S, Kishida, T, Kondo, Y, Kubo, T, Kurita, K, Michimasa, S, Minemura, T, Miura, M, Motobayashi, T, Nakamura, T, Notani, M, Ohnishi, TK, Saito, A, Shimoura, S, Sugimoto, T, Suzuki, MK, Takeshita, E, Takeuchi, S, Tamaki, M, Watanabe, H & Yoneda, K 2009, Application of Doppler-shift attenuation method to the de-excitation γ rays from the in-flight ¹²Be beam. in Perspectives in Nuclear Physics - Proceedings of the 6th Japan-Italy Symposium on Heavy-Ion Physics. AIP Conference Proceedings, vol. 1120, pp. 265-269, 6th Japan-Italy Symposium on Heavy-Ion Physics, Tokai, 日本, 11/11/08. https://doi.org/10.1063/1.3141658

Application of Doppler-shift attenuation method to the de-excitation γ rays from the in-flight ¹²Be beam. / Imai, N.; Aoi, N.; Ong, H. J. その他.
Perspectives in Nuclear Physics - Proceedings of the 6th Japan-Italy Symposium on Heavy-Ion Physics. 2009. p. 265-269 (AIP Conference Proceedings; Vol. 1120).

研究成果: 書籍の章/レポート/Proceedings › 会議への寄与 › 査読

TY - GEN

T1 - Application of Doppler-shift attenuation method to the de-excitation γ rays from the in-flight 12Be beam

AU - Imai, N.

AU - Aoi, N.

AU - Ong, H. J.

AU - Sakurai, H.

AU - Demichi, K.

AU - Kawasaki, H.

AU - Baba, H.

AU - Dombrádi, Zs

AU - Elekes, Z.

AU - Fukuda, N.

AU - Fülöp, Zs

AU - Gelberg, A.

AU - Gomi, T.

AU - Hasegawa, H.

AU - Ishikawa, K.

AU - Ishihara, M.

AU - Iwasaki, H.

AU - Kaneko, E.

AU - Kanno, S.

AU - Kishida, T.

AU - Kondo, Y.

AU - Kubo, T.

AU - Kurita, K.

AU - Michimasa, S.

AU - Minemura, T.

AU - Miura, M.

AU - Motobayashi, T.

AU - Nakamura, T.

AU - Notani, M.

AU - Ohnishi, T. K.

AU - Saito, A.

AU - Shimoura, S.

AU - Sugimoto, T.

AU - Suzuki, M. K.

AU - Takeshita, E.

AU - Takeuchi, S.

AU - Tamaki, M.

AU - Watanabe, H.

AU - Yoneda, K.

PY - 2009

Y1 - 2009

N2 - The B(E2;↓) value of the neutron-rich nucleus 12Be has been determined through the measurement of the lifetime of the first 2+ state using a modified Doppler-shift attenuation method (DSAM). The first excited state was produced by the inelastic scattering of the intermediate energy 12Be beam off a thick gold target, which played two roles, to excite the beam and to decrease the velocity. The lifetime has been determined to be 2.5±0.7 (stat) ± 0.3 (syst) ps, which gives a B(E2) value of 5.0±1.3±0.5 in Weisskopf units. The result shows a large quadrupole strength in the ground state transition. The B(E2) value together with the deformation length measured by proton inelastic scattering yields a neutron quadrupole matrix element two times larger than those for 14C and 16O.

AB - The B(E2;↓) value of the neutron-rich nucleus 12Be has been determined through the measurement of the lifetime of the first 2+ state using a modified Doppler-shift attenuation method (DSAM). The first excited state was produced by the inelastic scattering of the intermediate energy 12Be beam off a thick gold target, which played two roles, to excite the beam and to decrease the velocity. The lifetime has been determined to be 2.5±0.7 (stat) ± 0.3 (syst) ps, which gives a B(E2) value of 5.0±1.3±0.5 in Weisskopf units. The result shows a large quadrupole strength in the ground state transition. The B(E2) value together with the deformation length measured by proton inelastic scattering yields a neutron quadrupole matrix element two times larger than those for 14C and 16O.

KW - Doppler-shift attenuation method

KW - Radioactive beam experiment

KW - Reduced matrix element

UR - https://www.scopus.com/pages/publications/67650529376

U2 - 10.1063/1.3141658

DO - 10.1063/1.3141658

M3 - 会議への寄与

AN - SCOPUS:67650529376

SN - 9780735406551

T3 - AIP Conference Proceedings

SP - 265

EP - 269

BT - Perspectives in Nuclear Physics - Proceedings of the 6th Japan-Italy Symposium on Heavy-Ion Physics

T2 - 6th Japan-Italy Symposium on Heavy-Ion Physics

Y2 - 11 November 2008 through 15 November 2008

ER -