Isospin symmetry in the structure study of unstable nuclei

Y. Fujita; G. P.A. Berg; A. D. Bacher; T. Black; C. C. Foster; H. Fujimura; H. Fujita; K. Hara; K. Hatanaka; J. Jänecke; J. Kamiya; K. Katori; T. Kawabata; W. Lozowski; T. Noro; D. A. Roberts; Y. Shimbara; E. J. Stephenson; H. Ueno; T. Yamanaka; M. Yosoi

doi:10.1143/ptps.146.473

Isospin symmetry in the structure study of unstable nuclei

Y. Fujita
, G. P.A. Berg
, A. D. Bacher
, T. Black
, C. C. Foster
, H. Fujimura
, H. Fujita
, K. Hara
, K. Hatanaka
, J. Jänecke
, J. Kamiya
, K. Katori
, T. Kawabata
, W. Lozowski
, T. Noro
, D. A. Roberts
, Y. Shimbara
, E. J. Stephenson
, H. Ueno
, T. Yamanaka

M. Yosoi

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

1 Scopus citations

Abstract

Assuming isospin T is a good quantum number, the analog states of the low-lying states in T_z = ±(T₀+1) nuclei can be found as excited T₀+1 states in T_z = ±T₀ nuclei. Therefore, if T₀ + 1 states are identified in the excited region of T_z = ±T₀ nuclei, the structure of unstable nuclei with T_z = ±(T₀ + 1) can be deduced. We measured and compared the transition strengths to pairs of excited analog states in inelastic and charge-exchange reactions on the same target nucleus. The T values of these analog states were identified by using the fact that the transition strengths to them are different depending on T. The identification of T = 1/2 and 3/2 nature of analog MI and GT states in the mirror nuclei pair ²⁷Al and ²⁷Si is reported by comparing the transition strengths in high-resolution ²⁷Al(p,p′) and ²⁷Al(³He, t)²⁷Si reactions at 0°. The identified T = 3/2 states are analogous to the low-lying states of ²⁷Mg, which plays an important role in rp-process of nucleosynthesis.

Original language	English
Pages (from-to)	473-477
Number of pages	5
Journal	Progress of Theoretical Physics
Issue number	146 SUPPL.
DOIs	https://doi.org/10.1143/ptps.146.473
State	Published - 2002
Externally published	Yes

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Fujita, Y., Berg, G. P. A., Bacher, A. D., Black, T., Foster, C. C., Fujimura, H., Fujita, H., Hara, K., Hatanaka, K., Jänecke, J., Kamiya, J., Katori, K., Kawabata, T., Lozowski, W., Noro, T., Roberts, D. A., Shimbara, Y., Stephenson, E. J., Ueno, H., ... Yosoi, M. (2002). Isospin symmetry in the structure study of unstable nuclei. Progress of Theoretical Physics, (146 SUPPL.), 473-477. https://doi.org/10.1143/ptps.146.473

@article{3419e69cae5c4862b6a861a6fc5db177,

title = "Isospin symmetry in the structure study of unstable nuclei",

abstract = "Assuming isospin T is a good quantum number, the analog states of the low-lying states in Tz = ±(T0+1) nuclei can be found as excited T0+1 states in Tz = ±T0 nuclei. Therefore, if T0 + 1 states are identified in the excited region of Tz = ±T0 nuclei, the structure of unstable nuclei with Tz = ±(T0 + 1) can be deduced. We measured and compared the transition strengths to pairs of excited analog states in inelastic and charge-exchange reactions on the same target nucleus. The T values of these analog states were identified by using the fact that the transition strengths to them are different depending on T. The identification of T = 1/2 and 3/2 nature of analog MI and GT states in the mirror nuclei pair 27Al and 27Si is reported by comparing the transition strengths in high-resolution 27Al(p,p′) and 27Al(3He, t)27Si reactions at 0°. The identified T = 3/2 states are analogous to the low-lying states of 27Mg, which plays an important role in rp-process of nucleosynthesis.",

author = "Y. Fujita and Berg, \{G. P.A.\} and Bacher, \{A. D.\} and T. Black and Foster, \{C. C.\} and H. Fujimura and H. Fujita and K. Hara and K. Hatanaka and J. J{\"a}necke and J. Kamiya and K. Katori and T. Kawabata and W. Lozowski and T. Noro and Roberts, \{D. A.\} and Y. Shimbara and Stephenson, \{E. J.\} and H. Ueno and T. Yamanaka and M. Yosoi",

year = "2002",

doi = "10.1143/ptps.146.473",

language = "English",

pages = "473--477",

journal = "Progress of Theoretical Physics",

issn = "0033-068X",

publisher = "Yukawa Institute for Theoretical Physics",

number = "146 SUPPL.",

}

Fujita, Y, Berg, GPA, Bacher, AD, Black, T, Foster, CC, Fujimura, H, Fujita, H, Hara, K, Hatanaka, K, Jänecke, J, Kamiya, J, Katori, K, Kawabata, T, Lozowski, W, Noro, T, Roberts, DA, Shimbara, Y, Stephenson, EJ, Ueno, H, Yamanaka, T & Yosoi, M 2002, 'Isospin symmetry in the structure study of unstable nuclei', Progress of Theoretical Physics, no. 146 SUPPL., pp. 473-477. https://doi.org/10.1143/ptps.146.473

TY - JOUR

T1 - Isospin symmetry in the structure study of unstable nuclei

AU - Fujita, Y.

AU - Berg, G. P.A.

AU - Bacher, A. D.

AU - Black, T.

AU - Foster, C. C.

AU - Fujimura, H.

AU - Fujita, H.

AU - Hara, K.

AU - Hatanaka, K.

AU - Jänecke, J.

AU - Kamiya, J.

AU - Katori, K.

AU - Kawabata, T.

AU - Lozowski, W.

AU - Noro, T.

AU - Roberts, D. A.

AU - Shimbara, Y.

AU - Stephenson, E. J.

AU - Ueno, H.

AU - Yamanaka, T.

AU - Yosoi, M.

PY - 2002

Y1 - 2002

N2 - Assuming isospin T is a good quantum number, the analog states of the low-lying states in Tz = ±(T0+1) nuclei can be found as excited T0+1 states in Tz = ±T0 nuclei. Therefore, if T0 + 1 states are identified in the excited region of Tz = ±T0 nuclei, the structure of unstable nuclei with Tz = ±(T0 + 1) can be deduced. We measured and compared the transition strengths to pairs of excited analog states in inelastic and charge-exchange reactions on the same target nucleus. The T values of these analog states were identified by using the fact that the transition strengths to them are different depending on T. The identification of T = 1/2 and 3/2 nature of analog MI and GT states in the mirror nuclei pair 27Al and 27Si is reported by comparing the transition strengths in high-resolution 27Al(p,p′) and 27Al(3He, t)27Si reactions at 0°. The identified T = 3/2 states are analogous to the low-lying states of 27Mg, which plays an important role in rp-process of nucleosynthesis.

AB - Assuming isospin T is a good quantum number, the analog states of the low-lying states in Tz = ±(T0+1) nuclei can be found as excited T0+1 states in Tz = ±T0 nuclei. Therefore, if T0 + 1 states are identified in the excited region of Tz = ±T0 nuclei, the structure of unstable nuclei with Tz = ±(T0 + 1) can be deduced. We measured and compared the transition strengths to pairs of excited analog states in inelastic and charge-exchange reactions on the same target nucleus. The T values of these analog states were identified by using the fact that the transition strengths to them are different depending on T. The identification of T = 1/2 and 3/2 nature of analog MI and GT states in the mirror nuclei pair 27Al and 27Si is reported by comparing the transition strengths in high-resolution 27Al(p,p′) and 27Al(3He, t)27Si reactions at 0°. The identified T = 3/2 states are analogous to the low-lying states of 27Mg, which plays an important role in rp-process of nucleosynthesis.

UR - https://www.scopus.com/pages/publications/0036993764

U2 - 10.1143/ptps.146.473

DO - 10.1143/ptps.146.473

M3 - Article

AN - SCOPUS:0036993764

SN - 0033-068X

SP - 473

EP - 477

JO - Progress of Theoretical Physics

JF - Progress of Theoretical Physics

IS - 146 SUPPL.

ER -

Isospin symmetry in the structure study of unstable nuclei

Abstract

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