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Nonquenched Isoscalar Spin-M1 Excitations in sd-Shell Nuclei
https://repo.qst.go.jp/records/47517
https://repo.qst.go.jp/records/47517a9d9efe4-8737-468c-b6d4-776db8d31035
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-08-29 | |||||
| タイトル | ||||||
| タイトル | Nonquenched Isoscalar Spin-M1 Excitations in sd-Shell Nuclei | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
松原, 礼明
× 松原, 礼明× al., et× 松原 礼明 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Differential cross sections of isoscalar and isovector spin-M1 (0+→1+) transitions are measured using high-energy-resolution proton inelastic scattering at Ep=295 MeV on Mg24, Si28, S32, and Ar36 at 0°–14°. The squared spin-M1 nuclear transition matrix elements are deduced from the measured differential cross sections by applying empirically determined unit cross sections based on the assumption of isospin symmetry. The ratios of the squared nuclear matrix elements accumulated up to Ex=16 MeV compared to a shell-model prediction are 1.01(9) for isoscalar and 0.61(6) for isovector spin-M1 transitions, respectively. Thus, no quenching is observed for isoscalar spin-M1 transitions, while the matrix elements for isovector spin-M1 transitions are quenched by an amount comparable with the analogous Gamow-Teller transitions on those target nuclei. | |||||
| 書誌情報 |
Physical Review Letters 巻 115, 号 10, p. 102501-1-102501-6, 発行日 2015-09 |
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| 出版者 | ||||||
| 出版者 | American Physical Society | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0031-9007 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | http://dx.doi.org/10.1103/PhysRevLett.115.102501 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.115.102501 | |||||
| 関連名称 | http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.115.102501 | |||||
