{"_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": ["454", "489"]}, "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", "download_preview_message": "", "file_order": 0, "filename": "64_3_034505.pdf", "filesize": [{"value": "251.4 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relativistic lattice QCD with two flavours of sea quarks", "subitem_title_language": "en"}]}, "item_type_id": "5", "owner": "1", "path": ["454", "489"], "permalink_uri": "http://hdl.handle.net/10191/27634", "pubdate": {"attribute_name": "公開日", "attribute_value": "2014-06-23"}, "publish_date": "2014-06-23", "publish_status": "0", "recid": "2365", "relation": {}, "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_shared_id": null}