Measurement of the magnetic moments of 14B and 15B using projectile fragmentation spin polarization

H. Okuno; K. Asahi; H. Ueno; H. Izumi; H. Sato; M. Adachi; T. Nakamura; T. Kubo; N. Inabe; A. Yoshida; N. Fukunishi; T. Shimoda; H. Miyatake; N. Takahashi; W. D. Schmidt-Ott; M. Ishihara

doi:10.1016/0370-2693(95)00630-4

Measurement of the magnetic moments of ¹⁴B and ¹⁵B using projectile fragmentation spin polarization

H. Okuno
, K. Asahi
, H. Ueno
, H. Izumi
, H. Sato
, M. Adachi
, T. Nakamura
, T. Kubo
, N. Inabe
, A. Yoshida
, N. Fukunishi
, T. Shimoda
, H. Miyatake
, N. Takahashi
, W. D. Schmidt-Ott
, M. Ishihara

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

By making use of the phenomenon of ejectile spin polarization in the projectile fragmentation reaction as a tool to produce polarized radioactive nuclei, the magnetic moments of ¹⁴B and ¹⁵B have been determined by the β-NMR measurement, to be μ(¹⁴B) = (1.185±0.005)μ_n and μ(¹⁵B) = (2.659±0.015)μ_n where μ_n is the nuclear magneton. The comparison of the results with shell model calculations suggests that the single-particle energy of the neutron s_{1 2} orbit shifts downwards considerably compared with the d_{5 2} orbit in ¹⁴B, and also indicates the importance of J^π = 2⁺ configurations of neutrons in the sd shell. Thus, it is demonstrated that the measurement of magnetic moments provides useful information on the nuclear structure in the newly accessible region of light-mass unstable nuclei.

Original language	English
Pages (from-to)	41-45
Number of pages	5
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	354
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(95)00630-4
State	Published - 13 Jul 1995
Externally published	Yes

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Okuno, H., Asahi, K., Ueno, H., Izumi, H., Sato, H., Adachi, M., Nakamura, T., Kubo, T., Inabe, N., Yoshida, A., Fukunishi, N., Shimoda, T., Miyatake, H., Takahashi, N., Schmidt-Ott, W. D., & Ishihara, M. (1995). Measurement of the magnetic moments of ¹⁴B and ¹⁵B using projectile fragmentation spin polarization. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 354(1-2), 41-45. https://doi.org/10.1016/0370-2693(95)00630-4

@article{f61ecf24e15541ed871e2bdb7184586f,

title = "Measurement of the magnetic moments of 14B and 15B using projectile fragmentation spin polarization",

abstract = "By making use of the phenomenon of ejectile spin polarization in the projectile fragmentation reaction as a tool to produce polarized radioactive nuclei, the magnetic moments of 14B and 15B have been determined by the β-NMR measurement, to be μ(14B) = (1.185±0.005)μn and μ(15B) = (2.659±0.015)μn where μn is the nuclear magneton. The comparison of the results with shell model calculations suggests that the single-particle energy of the neutron s 1 2 orbit shifts downwards considerably compared with the d 5 2 orbit in 14B, and also indicates the importance of Jπ = 2+ configurations of neutrons in the sd shell. Thus, it is demonstrated that the measurement of magnetic moments provides useful information on the nuclear structure in the newly accessible region of light-mass unstable nuclei.",

author = "H. Okuno and K. Asahi and H. Ueno and H. Izumi and H. Sato and M. Adachi and T. Nakamura and T. Kubo and N. Inabe and A. Yoshida and N. Fukunishi and T. Shimoda and H. Miyatake and N. Takahashi and Schmidt-Ott, \{W. D.\} and M. Ishihara",

year = "1995",

month = jul,

day = "13",

doi = "10.1016/0370-2693(95)00630-4",

language = "English",

volume = "354",

pages = "41--45",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

Okuno, H, Asahi, K, Ueno, H, Izumi, H, Sato, H, Adachi, M, Nakamura, T, Kubo, T, Inabe, N, Yoshida, A, Fukunishi, N, Shimoda, T, Miyatake, H, Takahashi, N, Schmidt-Ott, WD & Ishihara, M 1995, 'Measurement of the magnetic moments of ¹⁴B and ¹⁵B using projectile fragmentation spin polarization', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 354, no. 1-2, pp. 41-45. https://doi.org/10.1016/0370-2693(95)00630-4

TY - JOUR

T1 - Measurement of the magnetic moments of 14B and 15B using projectile fragmentation spin polarization

AU - Okuno, H.

AU - Asahi, K.

AU - Ueno, H.

AU - Izumi, H.

AU - Sato, H.

AU - Adachi, M.

AU - Nakamura, T.

AU - Kubo, T.

AU - Inabe, N.

AU - Yoshida, A.

AU - Fukunishi, N.

AU - Shimoda, T.

AU - Miyatake, H.

AU - Takahashi, N.

AU - Schmidt-Ott, W. D.

AU - Ishihara, M.

PY - 1995/7/13

Y1 - 1995/7/13

N2 - By making use of the phenomenon of ejectile spin polarization in the projectile fragmentation reaction as a tool to produce polarized radioactive nuclei, the magnetic moments of 14B and 15B have been determined by the β-NMR measurement, to be μ(14B) = (1.185±0.005)μn and μ(15B) = (2.659±0.015)μn where μn is the nuclear magneton. The comparison of the results with shell model calculations suggests that the single-particle energy of the neutron s 1 2 orbit shifts downwards considerably compared with the d 5 2 orbit in 14B, and also indicates the importance of Jπ = 2+ configurations of neutrons in the sd shell. Thus, it is demonstrated that the measurement of magnetic moments provides useful information on the nuclear structure in the newly accessible region of light-mass unstable nuclei.

AB - By making use of the phenomenon of ejectile spin polarization in the projectile fragmentation reaction as a tool to produce polarized radioactive nuclei, the magnetic moments of 14B and 15B have been determined by the β-NMR measurement, to be μ(14B) = (1.185±0.005)μn and μ(15B) = (2.659±0.015)μn where μn is the nuclear magneton. The comparison of the results with shell model calculations suggests that the single-particle energy of the neutron s 1 2 orbit shifts downwards considerably compared with the d 5 2 orbit in 14B, and also indicates the importance of Jπ = 2+ configurations of neutrons in the sd shell. Thus, it is demonstrated that the measurement of magnetic moments provides useful information on the nuclear structure in the newly accessible region of light-mass unstable nuclei.

UR - https://www.scopus.com/pages/publications/0003115117

U2 - 10.1016/0370-2693(95)00630-4

DO - 10.1016/0370-2693(95)00630-4

M3 - Article

AN - SCOPUS:0003115117

SN - 0370-2693

VL - 354

SP - 41

EP - 45

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Measurement of the magnetic moments of 14B and 15B using projectile fragmentation spin polarization

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Measurement of the magnetic moments of ¹⁴B and ¹⁵B using projectile fragmentation spin polarization