Spectroscopy of 24Al through the 24Mg(p, n)24Al reaction at Ep = 35 MeV

G. C. Kiang; H. Orihara; Y. Takahashi; A. Satoh; T. Niizeki; J. Takamatsu; M. Kabasawa; T. Kawamura; K. Furukawa; T. Nakagawa; K. Maeda; K. Ishii; K. Miura; L. L. Kiang; P. K. Teng; H. Ohnuma

doi:10.1016/0375-9474(89)90050-X

Spectroscopy of ²⁴Al through the ²⁴Mg(p, n)²⁴Al reaction at E_p = 35 MeV

G. C. Kiang, H. Orihara, Y. Takahashi, A. Satoh, T. Niizeki, J. Takamatsu, M. Kabasawa, T. Kawamura, K. Furukawa, T. Nakagawa, K. Maeda, K. Ishii, K. Miura, L. L. Kiang, P. K. Teng, H. Ohnuma

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19 Citations (Scopus)

Abstract

An experimental study of the ²⁴Mg(p, n)²⁴Al reaction at E_p = 35 MeV was carried out. High-resolution neutron time-of-flight spectra were measured at 17 angles in a range of 0°-110°. Neutron peaks corresponding to seventeen states in ²⁴A1 have been resolved. A number of spin-parity assignments have been made based on distorted-wave Born-approximation (DWBA) analyses for the measured angular distributions, using microscopic transition amplitudes obtained from the 1s0d shell model for positive-parity states and those from the 0s0p-1s0d-1p0f open-shell randomphase approximation (OSRPA) for negative-parity states. Reasonable correlation between the low-energy (p, n) cross section and the β-decay strength has been found for the observed 0⁺ →1 ⁺ Gamow-Teller transitions leading to the 0.439, 1.116 and 3.023 MeV states in ²⁴Al. The 1.56 MeV 5⁺ state has been identified as a 0 h {combining short solidus overlay}ω stretched state, in addition to the 5.54 MeV, 6 state of 1 h {combining short solidus overlay}ω character. Candidates for the 1 h {combining short solidus overlay}ω negative-parity transitions leading to the 2, 3, 4 states are also presented.

Original language	English
Pages (from-to)	339-352
Number of pages	14
Journal	Nuclear Physics, Section A
Volume	499
Issue number	2
DOIs	https://doi.org/10.1016/0375-9474(89)90050-X
Publication status	Published - 1989 Jul 24
Externally published	Yes

Keywords

Nuclear reaction

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1016/0375-9474(89)90050-X

Cite this

Kiang, G. C., Orihara, H., Takahashi, Y., Satoh, A., Niizeki, T., Takamatsu, J., Kabasawa, M., Kawamura, T., Furukawa, K., Nakagawa, T., Maeda, K., Ishii, K., Miura, K., Kiang, L. L., Teng, P. K., & Ohnuma, H. (1989). Spectroscopy of ²⁴Al through the ²⁴Mg(p, n)²⁴Al reaction at E_p = 35 MeV. Nuclear Physics, Section A, 499(2), 339-352. https://doi.org/10.1016/0375-9474(89)90050-X

Kiang, GC, Orihara, H, Takahashi, Y, Satoh, A, Niizeki, T, Takamatsu, J, Kabasawa, M, Kawamura, T, Furukawa, K, Nakagawa, T, Maeda, K, Ishii, K, Miura, K, Kiang, LL, Teng, PK & Ohnuma, H 1989, 'Spectroscopy of ²⁴Al through the ²⁴Mg(p, n)²⁴Al reaction at E_p = 35 MeV', Nuclear Physics, Section A, vol. 499, no. 2, pp. 339-352. https://doi.org/10.1016/0375-9474(89)90050-X

@article{e84e3502acab4f0c9507ef15bb3316d7,

title = "Spectroscopy of 24Al through the 24Mg(p, n)24Al reaction at Ep = 35 MeV",

abstract = "An experimental study of the 24Mg(p, n)24Al reaction at Ep = 35 MeV was carried out. High-resolution neutron time-of-flight spectra were measured at 17 angles in a range of 0°-110°. Neutron peaks corresponding to seventeen states in 24A1 have been resolved. A number of spin-parity assignments have been made based on distorted-wave Born-approximation (DWBA) analyses for the measured angular distributions, using microscopic transition amplitudes obtained from the 1s0d shell model for positive-parity states and those from the 0s0p-1s0d-1p0f open-shell randomphase approximation (OSRPA) for negative-parity states. Reasonable correlation between the low-energy (p, n) cross section and the β-decay strength has been found for the observed 0+ →1 + Gamow-Teller transitions leading to the 0.439, 1.116 and 3.023 MeV states in 24Al. The 1.56 MeV 5+ state has been identified as a 0 h {combining short solidus overlay}ω stretched state, in addition to the 5.54 MeV, 6 state of 1 h {combining short solidus overlay}ω character. Candidates for the 1 h {combining short solidus overlay}ω negative-parity transitions leading to the 2, 3, 4 states are also presented.",

keywords = "Nuclear reaction",

author = "Kiang, {G. C.} and H. Orihara and Y. Takahashi and A. Satoh and T. Niizeki and J. Takamatsu and M. Kabasawa and T. Kawamura and K. Furukawa and T. Nakagawa and K. Maeda and K. Ishii and K. Miura and Kiang, {L. L.} and Teng, {P. K.} and H. Ohnuma",

note = "Funding Information: The authors would like to thank Professor T, Ishimatsu for useful discussions. They are grateful to Professor E.K. Lin for his interest in this work. This work was partially supported by the Ministry of Education, Science and Culture of Japan in Grant-in-Aid for Scientific Research, No, 59540147.",

year = "1989",

month = jul,

day = "24",

doi = "10.1016/0375-9474(89)90050-X",

language = "English",

volume = "499",

pages = "339--352",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

number = "2",

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TY - JOUR

T1 - Spectroscopy of 24Al through the 24Mg(p, n)24Al reaction at Ep = 35 MeV

AU - Kiang, G. C.

AU - Orihara, H.

AU - Takahashi, Y.

AU - Satoh, A.

AU - Niizeki, T.

AU - Takamatsu, J.

AU - Kabasawa, M.

AU - Kawamura, T.

AU - Furukawa, K.

AU - Nakagawa, T.

AU - Maeda, K.

AU - Ishii, K.

AU - Miura, K.

AU - Kiang, L. L.

AU - Teng, P. K.

AU - Ohnuma, H.

N1 - Funding Information: The authors would like to thank Professor T, Ishimatsu for useful discussions. They are grateful to Professor E.K. Lin for his interest in this work. This work was partially supported by the Ministry of Education, Science and Culture of Japan in Grant-in-Aid for Scientific Research, No, 59540147.

PY - 1989/7/24

Y1 - 1989/7/24

N2 - An experimental study of the 24Mg(p, n)24Al reaction at Ep = 35 MeV was carried out. High-resolution neutron time-of-flight spectra were measured at 17 angles in a range of 0°-110°. Neutron peaks corresponding to seventeen states in 24A1 have been resolved. A number of spin-parity assignments have been made based on distorted-wave Born-approximation (DWBA) analyses for the measured angular distributions, using microscopic transition amplitudes obtained from the 1s0d shell model for positive-parity states and those from the 0s0p-1s0d-1p0f open-shell randomphase approximation (OSRPA) for negative-parity states. Reasonable correlation between the low-energy (p, n) cross section and the β-decay strength has been found for the observed 0+ →1 + Gamow-Teller transitions leading to the 0.439, 1.116 and 3.023 MeV states in 24Al. The 1.56 MeV 5+ state has been identified as a 0 h {combining short solidus overlay}ω stretched state, in addition to the 5.54 MeV, 6 state of 1 h {combining short solidus overlay}ω character. Candidates for the 1 h {combining short solidus overlay}ω negative-parity transitions leading to the 2, 3, 4 states are also presented.

AB - An experimental study of the 24Mg(p, n)24Al reaction at Ep = 35 MeV was carried out. High-resolution neutron time-of-flight spectra were measured at 17 angles in a range of 0°-110°. Neutron peaks corresponding to seventeen states in 24A1 have been resolved. A number of spin-parity assignments have been made based on distorted-wave Born-approximation (DWBA) analyses for the measured angular distributions, using microscopic transition amplitudes obtained from the 1s0d shell model for positive-parity states and those from the 0s0p-1s0d-1p0f open-shell randomphase approximation (OSRPA) for negative-parity states. Reasonable correlation between the low-energy (p, n) cross section and the β-decay strength has been found for the observed 0+ →1 + Gamow-Teller transitions leading to the 0.439, 1.116 and 3.023 MeV states in 24Al. The 1.56 MeV 5+ state has been identified as a 0 h {combining short solidus overlay}ω stretched state, in addition to the 5.54 MeV, 6 state of 1 h {combining short solidus overlay}ω character. Candidates for the 1 h {combining short solidus overlay}ω negative-parity transitions leading to the 2, 3, 4 states are also presented.

KW - Nuclear reaction

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