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  1. 010 学術雑誌論文
  2. 平田, 光司 / HIRATA, Kohji

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/3278
ef0c3569-318d-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
言語 en
タイトル Mixing and decays of pseudoscalar mesons in a nonrelativistic quark model with an idea abstracted from quantum chromodynamics
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

WEKO 6

HIRATA, Kohji

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KOBAYASHI, Tsunehiro

× KOBAYASHI, Tsunehiro

WEKO 710

KOBAYASHI, Tsunehiro

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TAKAIWA, Yoshinobu

× TAKAIWA, Yoshinobu

WEKO 712

TAKAIWA, Yoshinobu

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著者別名 平田, 光司

× 平田, 光司

WEKO 5
NRID 1000090173236
e-Rad 90173236

平田, 光司

Search repository
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
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
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