Observation of isospin mixing for the isobaric analog state in 56Co through the 56Fe(p, n)56Co reaction

H. Orihara; K. Ogawa; T. Murakami; S. Nishihara; T. Nakagawa; K. Maeda

doi:10.1016/0375-9474(83)90229-4

Observation of isospin mixing for the isobaric analog state in ⁵⁶Co through the ⁵⁶Fe(p, n)⁵⁶Co reaction

H. Orihara, K. Ogawa, T. Murakami, S. Nishihara, T. Nakagawa, K. Maeda

SCI - Physics

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

6 Citations (Scopus)

Abstract

The reaction ⁵⁶Fe(p, n)⁵⁶Co has been studied at E_p = 17 MeV by employing the time-of-flight technique. Two prominent peaks observed at E_x = 3.51 and 3.59 MeV are assigned to be J^π = 0⁺ states from the angular distribution measurement, and interpreted as the splitting of the isobaric analog state into the nearby T_<, 0⁺ state through the isospin-mixing Coulomb interaction. A shell-model calculation has been carried out to find such a 0⁺ state, which may yield a Coulomb matrix element 〈J = 0₂⁺ (T = 1)|V_coul|J = 0₃⁺(T = 2, IAS)〉 of the order of 10 keV.

Original language	English
Pages (from-to)	317-326
Number of pages	10
Journal	Nuclear Physics, Section A
Volume	403
Issue number	2
DOIs	https://doi.org/10.1016/0375-9474(83)90229-4
Publication status	Published - 1983 Jul 18

Keywords

Nuclear reaction

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/0375-9474(83)90229-4

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title = "Observation of isospin mixing for the isobaric analog state in 56Co through the 56Fe(p, n)56Co reaction",

abstract = "The reaction 56Fe(p, n)56Co has been studied at Ep = 17 MeV by employing the time-of-flight technique. Two prominent peaks observed at Ex = 3.51 and 3.59 MeV are assigned to be Jπ = 0+ states from the angular distribution measurement, and interpreted as the splitting of the isobaric analog state into the nearby T<, 0+ state through the isospin-mixing Coulomb interaction. A shell-model calculation has been carried out to find such a 0+ state, which may yield a Coulomb matrix element 〈J = 02+ (T = 1)|Vcoul|J = 03+(T = 2, IAS)〉 of the order of 10 keV.",

keywords = "Nuclear reaction",

author = "H. Orihara and K. Ogawa and T. Murakami and S. Nishihara and T. Nakagawa and K. Maeda",

year = "1983",

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T1 - Observation of isospin mixing for the isobaric analog state in 56Co through the 56Fe(p, n)56Co reaction

AU - Orihara, H.

AU - Ogawa, K.

AU - Murakami, T.

AU - Nishihara, S.

AU - Nakagawa, T.

AU - Maeda, K.

PY - 1983/7/18

Y1 - 1983/7/18

N2 - The reaction 56Fe(p, n)56Co has been studied at Ep = 17 MeV by employing the time-of-flight technique. Two prominent peaks observed at Ex = 3.51 and 3.59 MeV are assigned to be Jπ = 0+ states from the angular distribution measurement, and interpreted as the splitting of the isobaric analog state into the nearby T<, 0+ state through the isospin-mixing Coulomb interaction. A shell-model calculation has been carried out to find such a 0+ state, which may yield a Coulomb matrix element 〈J = 02+ (T = 1)|Vcoul|J = 03+(T = 2, IAS)〉 of the order of 10 keV.

AB - The reaction 56Fe(p, n)56Co has been studied at Ep = 17 MeV by employing the time-of-flight technique. Two prominent peaks observed at Ex = 3.51 and 3.59 MeV are assigned to be Jπ = 0+ states from the angular distribution measurement, and interpreted as the splitting of the isobaric analog state into the nearby T<, 0+ state through the isospin-mixing Coulomb interaction. A shell-model calculation has been carried out to find such a 0+ state, which may yield a Coulomb matrix element 〈J = 02+ (T = 1)|Vcoul|J = 03+(T = 2, IAS)〉 of the order of 10 keV.

KW - Nuclear reaction

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