{"created":"2021-03-01T06:06:04.231029+00:00","id":2365,"links":{},"metadata":{"_buckets":{"deposit":"c5c195eb-c618-4201-a4b0-276cdc995eed"},"_deposit":{"id":"2365","owners":[],"pid":{"revision_id":0,"type":"depid","value":"2365"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00002365","sets":["176:488:489","453:454"]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2001-07","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageStart":"034505","bibliographicVolumeNumber":"64","bibliographic_titles":[{"bibliographic_title":"Physical Review D"},{"bibliographic_title":"Physical Review D","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We present a calculation of the B and D meson decay constants in lattice QCD with two (N f =2) flavors of light dynamical quarks, using an O(a)-improved Wilson action for both light and heavy quarks and a renormalization-group improved gauge action. Simulations are made at three values of lattice spacing a=0.22,0.16,0.11 fm and four values of sea quark mass in the range m PS /m V ≈0.8-0.6. Our provisional estimate for the continuum values of the decay constants are f Bd =208(10)(29) MeV, f Bs =250(10)(35)( +8 -0 ) MeV, f Dd =225(14)(40) MeV, f Ds =267(13)(48)( +10 -0 ) MeV for N f =2 where the statistical and systematic errors are separately listed, and the third error for f Bs and f Ds shows the uncertainty of the determination of the strange quark mass. We also carry out a set of quenched simulations using the same action to make a direct examination of sea quark effects. Taking the ratio of results for N f =2 and N f =0, we obtain f N f =2 Bd /f N f =0 Bd =1.11(6),f N f =2 Bs /f N f =0 Bs =1.14(5),f N f =2 Dd /f N f =0 Dd =1.03(6),f N f =2 Ds /f N f =0 Ds =1.07(5). They show a 10–15 % increase in the N f =2 results over those of N f =0 for the B meson decay constants, while evidence for such a trend is statistically less clear for the D meson decay constants.","subitem_description_type":"Abstract"}]},"item_5_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Physical Society"}]},"item_5_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"info:doi/10.1103/PhysRevD.64.034505","subitem_relation_type_select":"DOI"}}]},"item_5_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"(C) 2001 American Physical Society"}]},"item_5_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_5_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA00773624","subitem_source_identifier_type":"NCID"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"15507998","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Khan, A.Ali"}],"nameIdentifiers":[{"nameIdentifier":"18573","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Aoki, S."}],"nameIdentifiers":[{"nameIdentifier":"18574","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Burkhalter, R."}],"nameIdentifiers":[{"nameIdentifier":"18575","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ejiri, S."}],"nameIdentifiers":[{"nameIdentifier":"18576","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Fukugita, M."}],"nameIdentifiers":[{"nameIdentifier":"18577","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hashimoto, S."}],"nameIdentifiers":[{"nameIdentifier":"18578","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ishizuka, N."}],"nameIdentifiers":[{"nameIdentifier":"18579","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Iwasaki, Y."}],"nameIdentifiers":[{"nameIdentifier":"18580","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kanaya, K."}],"nameIdentifiers":[{"nameIdentifier":"18581","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kaneko, T."}],"nameIdentifiers":[{"nameIdentifier":"18582","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kuramashi, Y."}],"nameIdentifiers":[{"nameIdentifier":"18583","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Manke, T."}],"nameIdentifiers":[{"nameIdentifier":"18584","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nagai, K.I."}],"nameIdentifiers":[{"nameIdentifier":"18585","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Okawa, M."}],"nameIdentifiers":[{"nameIdentifier":"18586","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shanahan, H.P."}],"nameIdentifiers":[{"nameIdentifier":"18587","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ukawa, A."}],"nameIdentifiers":[{"nameIdentifier":"18588","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yoshie, T."}],"nameIdentifiers":[{"nameIdentifier":"18589","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"CP-PACS, Collaboration"}],"nameIdentifiers":[{"nameIdentifier":"18590","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-07-29"}],"displaytype":"detail","filename":"64_3_034505.pdf","filesize":[{"value":"251.4 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"64_3_034505.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/2365/files/64_3_034505.pdf"},"version_id":"0eebd47d-9110-4cbd-ad43-e8b8992a1547"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Decay constants of B and D mesons from improved relativistic lattice QCD with two flavours of sea quarks","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Decay constants of B and D mesons from improved relativistic lattice QCD with two flavours of sea quarks"},{"subitem_title":"Decay constants of B and D mesons from improved relativistic lattice QCD with two flavours of sea quarks","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["454","489"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-06-23"},"publish_date":"2014-06-23","publish_status":"0","recid":"2365","relation_version_is_last":true,"title":["Decay constants of B and D mesons from improved relativistic lattice QCD with two flavours of sea quarks"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T03:35:19.331627+00:00"}