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Nucleon decay matrix elements from lattice QCD
http://hdl.handle.net/2241/89381
http://hdl.handle.net/2241/893813d7e1173-7992-4627-9a7f-06974e619774
名前 / ファイル | ライセンス | アクション |
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PRD_62-1.pdf (312.0 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2007-05-24 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Nucleon decay matrix elements from lattice QCD | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
著者 |
Aoki, S.
× Aoki, S.× Fukugita, M.× Hashimoto, S.× Ishikawa, K-I.× Ishizuka, N.× 岩崎, 洋一× Kanaya, K.× Kaneda, T.× Kaya, S.× Kuramashi, Y.× Okawa, M.× Onogi, T.× Tominaga, S.× Tsutsui, N.× 宇川, 彰× Yamada, N.× Yoshie, T. |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We present a model-independent calculation of hadron matrix elements for all dimension-6 operators associated with baryon number violating processes using lattice QCD. The calculation is performed with the Wilson quark action in the quenched approximation at β=6/g^2=6.0 on a 28^2×48×80 lattice. Our results cover all the matrix elements required to estimate the partial lifetimes of (proton,neutron)→(π,K,η)+(⁻ν ,e+,μ+) decay modes. We point out the necessity of disentangling two form factors that contribute to the matrix element; previous calculations did not make the separation, which led to an underestimate of the physical matrix elements. With a correct separation, we find that the matrix elements have values 3-5 times larger than the smallest estimates employed in phenomenological analyses of the nucleon decays, which could give strong constraints on several GUT models. We also find that the values of the matrix elements are comparable with the tree-level predictions of the chiral Lagrangian. | |||||
言語 | en | |||||
書誌情報 |
en : Physical review D 巻 62, 号 1, p. 014506, 発行日 2000-06 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 2470-0010 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00773624 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1103/PhysRevD.62.014506 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | (c) 2000 The American Physical Society) | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | American Physical Society | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2241/89381 | |||||
識別子タイプ | HDL |