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Finite size effect on vector meson and baryon sectors in 2+1 flavor QCD at the physical point
http://hdl.handle.net/2241/00161289
http://hdl.handle.net/2241/00161289b599612c-a35c-481d-b7f2-940bf851689f
名前 / ファイル | ライセンス | アクション |
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PRD_100-9-094502 (484.2 kB)
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Item type | Journal Article(1) | |||||||||||
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公開日 | 2020-09-11 | |||||||||||
タイトル | ||||||||||||
言語 | en | |||||||||||
タイトル | Finite size effect on vector meson and baryon sectors in 2+1 flavor QCD at the physical point | |||||||||||
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 |
石塚, 成人
× 石塚, 成人× 藏増, 嘉伸
WEKO
672
× 谷口, 裕介× 山﨑, 剛× 吉江, 友照× Ishikawa, K.-I.× Nakamura, Y.× Namekawa, Y.× Shintani, E.× Ukita, N. |
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抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | We investigate the finite size effect on the vector meson and the baryon sectors using a subset of the “PACS10” configurations which are generated, keeping the space-time volumes over (10??fm)4 in 2+1 flavor QCD at the physical point. Comparing the results on (5.5??fm)4 and (10.9??fm)4 lattices, the ground states of octet baryons, which are stable on the lattice, show no finite size effect within less than 0.5% level of statistical errors. For those of vector mesons, which are unstable on the lattice, we observe that the effective masses are well below the experimental resonance levels both on (5.5??fm)4 and (10.9??fm)4 lattices. For the decuplet baryon sector, we have found that the time dependence of the effective mass looks quite similar to that for the vector meson sector, including the Ω baryon channel. We discuss its origin due to a possible mixing with the nearby multihadron states. Since the Ξ baryon mass can be determined with the smallest ambiguity among the vector meson and the baryon masses, we use it together with the pion and kaon masses as the physical inputs to determine the physical point. | |||||||||||
言語 | en | |||||||||||
書誌情報 |
en : Physical review D 巻 100, 号 9, p. 094502, 発行日 2019-11 |
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ISSN | ||||||||||||
収録物識別子タイプ | PISSN | |||||||||||
収録物識別子 | 2470-0010 | |||||||||||
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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.100.094502 | |||||||||||
権利 | ||||||||||||
言語 | en | |||||||||||
権利情報 | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. | |||||||||||
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 |