## 抄録

Under the assumption of good isospin symmetry, T_{z} = ±3/2 → ±1/2 Gamow-Teller (GT) transitions in a mass A isobar are analogous, where T_{z} is the z component of isospin T defined by 1/2(N - Z). We studied the T_{z} = +3/2 → +1/2 GT transitions by using the ^{37}Cl(^{3}He,t)^{37}Ar and ^{41}K( ^{3}He,t)^{41}Ca reactions at E_{beam} = 140 MeV/nucleon. The GT transition strengths in ^{37}Ar and ^{41}Ca were obtained up to the excitation energy (E_{x}) of 14.2 MeV and 10.4 MeV with energy resolutions of 30 and 35 keV, respectively. The obtained GT strengths were compared with those of the T_{z} = -2/3 → -1/2 mirror transitions, measured by the β-decay of ^{37}Ca and ^{41}Ti, respectively. It was found that the overall distributions of the mirror transitions were similar in both A = 37 and A = 41 systems. In A = 37 the differences seen at lower excitation energies are suggested to be the effect of the tensor interaction in the charge-exchange reaction. The differences seen at higher excitation energies are suggested to be the effect of the Coulomb interaction that can break the mirror symmetry of the strength distributions.

本文言語 | English |
---|---|

ページ（範囲） | 1976-1979 |

ページ数 | 4 |

ジャーナル | Modern Physics Letters A |

巻 | 25 |

号 | 21-23 |

DOI | |

出版ステータス | Published - 2010 7月 30 |

## ASJC Scopus subject areas

- 核物理学および高エネルギー物理学
- 天文学と天体物理学
- 物理学および天文学（全般）

## フィンガープリント

「Isospin symmetry of T_{z}= ±3/2 → ±1/2 gamow-teller transitions in A = 37 and A = 41 nuclei」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。