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Mixing and decays of pseudoscalar mesons in a nonrelativistic quark model with an idea abstracted from quantum chromodynamics
https://ir.soken.ac.jp/records/3278
https://ir.soken.ac.jp/records/3278ef0c3569-318d-4502-9ffc-8bfb2e620fda
| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2012-12-12 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Mixing and decays of pseudoscalar mesons in a nonrelativistic quark model with an idea abstracted from quantum chromodynamics | |||||||||||
| タイトル | ||||||||||||
| タイトル | Mixing and decays of pseudoscalar mesons in a nonrelativistic quark model with an idea abstracted from quantum chromodynamics | |||||||||||
| 言語 | en | |||||||||||
| 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 |
HIRATA, Kohji
× HIRATA, Kohji
× KOBAYASHI, Tsunehiro
× TAKAIWA, Yoshinobu
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| 著者別名 |
平田, 光司
× 平田, 光司
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| 抄録 | ||||||||||||
| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | The compositeness of mesons is taken into account in the evaluation of decays and mixing of η, η′, and ηc with an idea abstracted from quantum chromodynamics. Effective couplings of a pseudoscalar meson and two gluons are calculated in a simple model, where the Bethe-Salpeter amplitude is approximated in terms of harmonic-oscillator wave functions. The model is constructed so as to reproduce S-wave meson masses and the values of wave functions at the origin in the sense of the nonrelativistic quark model. In this model Γ(π0→2γ) is reproduced satisfactorily. We obtain an s-dependent mixing angle, which is estimated to be -42.3° and -40.0° for s=Mη2 and s=Mη′2, respectively. Criticism of various estimations of the angle is presented. All the results are shown to be consistent with experiments. The importance of the compositeness of mesons is stressed. | |||||||||||
| 書誌情報 |
Physical Review D en : Physical Review D 巻 18, 号 1, p. 236-241, 発行日 1978 |
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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 | 05562821 | |||||||||||
| DOI | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | https://doi.org/10.1103/PhysRevD.18.236 | |||||||||||
| 関連名称 | 10.1103/PhysRevD.18.236 | |||||||||||
| 権利 | ||||||||||||
| 権利情報 | © 1978 The American Physical Society | |||||||||||
