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Study of quark mass dependence of binding energy for light nuclei in 2+1 flavor lattice QCD
http://hdl.handle.net/2241/00126224
http://hdl.handle.net/2241/00126224665eec64-6142-4319-983a-485ffb845f6b
名前 / ファイル | ライセンス | アクション |
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PRD_92-1 (806.5 kB)
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Item type | Journal Article(1) | |||||
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公開日 | 2015-09-04 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Study of quark mass dependence of binding energy for light nuclei in 2+1 flavor 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 |
山﨑, 剛
× 山﨑, 剛× Ishikawa, Ken-ichi× 藏増, 嘉伸× 宇川, 彰 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We investigate the formation of light nuclei with the nuclear mass number less than or equal to four in 2+1 flavor QCD using a nonperturbative improved Wilson quark and Iwasaki gauge actions. The quark mass is decreased from our previous work to the one corresponding to the pion mass of 0.30 GeV. In each multinucleon channel, the energy shift of the ground state relative to the assembly of free nucleons is calculated on two volumes, whose spatial extents are 4.3 and 5.8 fm. From the volume dependence of the energy shift, we distinguish a bound state of multinucleons from an attractive scattering state. We find that all the ground states measured in this calculation are bound states. As in the previous studies at larger mπ, our result indicates that at mπ=0.30 GeV the effective interaction between nucleons in the light nuclei is relatively stronger than the one in nature, since the results for the binding energies are larger than the experimental values and a bound state appears in the dineutron channel, which is not observed in experiment. Possible sources of systematic error in this calculation are discussed. | |||||
言語 | en | |||||
書誌情報 |
en : Physical review D 巻 92, 号 1, p. 014501, 発行日 2015-07 |
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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.92.014501 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | (c) 2015 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 |