{"_buckets": {"deposit": "5c000c52-380a-40db-bf87-9191d5dd0719"}, "_deposit": {"created_by": 1, "id": "706", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "706"}, "status": "published"}, "_oai": {"id": "oai:ir.soken.ac.jp:00000706", "sets": ["16"]}, "author_link": ["0", "0", "0"], "item_1_biblio_info_21": {"attribute_name": "書誌情報（ソート用）", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2008-03-19", "bibliographicIssueDateType": "Issued"}, "bibliographic_titles": [{}]}]}, "item_1_creator_2": {"attribute_name": "著者名", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "泉田, 賢一"}], "nameIdentifiers": [{"nameIdentifier": "0", "nameIdentifierScheme": "WEKO"}]}]}, "item_1_creator_3": {"attribute_name": "フリガナ", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "センダ, ケンイチ"}], "nameIdentifiers": [{"nameIdentifier": "0", "nameIdentifierScheme": "WEKO"}]}]}, "item_1_date_granted_11": {"attribute_name": "学位授与年月日", "attribute_value_mlt": [{"subitem_dategranted": "2008-03-19"}]}, "item_1_degree_grantor_5": {"attribute_name": "学位授与機関", "attribute_value_mlt": [{"subitem_degreegrantor": [{"subitem_degreegrantor_name": "総合研究大学院大学"}]}]}, "item_1_degree_name_6": {"attribute_name": "学位名", "attribute_value_mlt": [{"subitem_degreename": "博士（理学）"}]}, "item_1_description_1": {"attribute_name": "ID", "attribute_value_mlt": [{"subitem_description": "2008034", "subitem_description_type": "Other"}]}, "item_1_description_12": {"attribute_name": "要旨", "attribute_value_mlt": [{"subitem_description": "　The Tokai-to-Kamioka (T2K) neutrino oscillation experiment will start in 2009.\u003cbr\u003eIn T2K. the center of the neutrino beam from J-PARC at Tokai will go through\u003cbr\u003eunderground beneath Super-Kamiokande (SK), reach the sea level in the Japan\u003cbr\u003e(east) sea near Korean shore. When the beam center is 2.5°(3.0°) downward SK,\u003cbr\u003ethe neutrino beam with an off-axis angle greater than 1.0°(0.5°) can be observed\u003cbr\u003ein Korea. We study the physics potential of the Tokai-to-Kamioka-and-Korea\u003cbr\u003e(T2KK) experiment when an additional 100 kt-level Water \u0026#268;erenkov detector is\u003cbr\u003eplaced in Korea during the T2K experimental period. We find that the matter\u003cbr\u003eeffect, which arises from the coherent interaction of \u003ci\u003e\u003csmall\u003eV\u003c/small\u003ee\u003c/i\u003e (or \u003ci\u003e\u0026oline;\u003csmall\u003eV\u003c/small\u003ee\u003c/i\u003e) off the electrons in\u003cbr\u003ethe earth matter, is a powerful tool to determine the sign of (\u003ci\u003em\u003c/i\u003e\u003csup\u003e2\u003c/sup\u003e\u003csub\u003e3\u003c/sub\u003e−\u003ci\u003em\u003c/i\u003e\u003csup\u003e2\u003c/sup\u003e\u003csub\u003e1\u003c/sub\u003e), and the\u003cbr\u003eCP phase, σ\u003csmall\u003eMNS\u003c/small\u003e, of the lepton flavor mixing matrix. The best combination of the\u003cbr\u003eoff-axis angles at each detector and the length for the Tokai-to-Korea baseline is\u003cbr\u003efound to be 3.0°at SK ( \u003ci\u003eL\u003c/i\u003e = 295 km) and 0.5° at \u003ci\u003eL\u003c/i\u003e =1000km. If we choose this\u003cbr\u003ecombination, and if the densities along the baselines are 2.8 g/cm\u003csup\u003e3\u003c/sup\u003e for Tokai-to-\u003cbr\u003eKamioka baseline and 3 g / cm\u003csup\u003e3\u003c/sup\u003e for Tokai-to-Korea baseline with 3% uncertainties,\u003cbr\u003ethe mass hierarchy pattern can be determined at 3-σ level for sin\u003csup\u003e2\u003c/sup\u003e 2θ\u003csmall\u003eRCT\u003c/small\u003e＞\u003csub\u003e～\u003c/sub\u003e 0.09,\u003cbr\u003eand the CP phase can be constrained with \u0026plusmn; 30°error for sin\u003csup\u003e2\u003c/sup\u003e 2θ\u003csmall\u003eRCT\u003c/small\u003e0.06, after\u003cbr\u003e5 years of running (5 × 10\u003csup\u003e21\u003c/sup\u003e POT). When we combine the result of the future\u003cbr\u003ereactor neutrino ercperiments, such as Double-CHOOZ, RENO, DAYA-BAY, the\u003cbr\u003ecapability of determining the mass hierarchy pattern in T2KK is enhanced, and the\u003cbr\u003ehierarchy pattern can be constrained at 3-σ level for sin\u003csup\u003e2\u003c/sup\u003e2θ\u003csmall\u003eRCT\u003c/small\u003e＞\u003csub\u003e～\u003c/sub\u003e 0.055. Because\u003cbr\u003eof the importance of the matter effect, we study the matter profile along the\u003cbr\u003ebaselines of the T2KK experiment by using the recent geophysical measurements.\u003cbr\u003eThe average matter density along the Tokai-to-Korea baselines is found to be 2.96,\u003cbr\u003e3.01, and 3.03 g/cm\u003csup\u003e3\u003c/sup\u003e for the baseline length of L = 1000, 1100, and 1200 km,\u003cbr\u003erespectively, with about 6% uncertainty. Only the real part of the first Fourier\u003cbr\u003emode gives non-negligible but very small contribution to the up \u003ci\u003ev\u003c/i\u003eμ→\u003ci\u003eve\u003c/i\u003e oscillation\u003cbr\u003eprobability. We find that, even if we enhance the error of the average matter\u003cbr\u003edensity from 3% to 6%, the capability of determining the neutrino mass hierarchy\u003cbr\u003epattern in T2KK does not deteriorate significantly because the measurement error\u003cbr\u003eis dominated by statistics.", "subitem_description_type": "Other"}]}, "item_1_description_18": {"attribute_name": "フォーマット", "attribute_value_mlt": [{"subitem_description": "application/pdf", "subitem_description_type": "Other"}]}, "item_1_description_7": {"attribute_name": "学位記番号", "attribute_value_mlt": [{"subitem_description": "総研大甲第1141号", "subitem_description_type": "Other"}]}, "item_1_select_14": {"attribute_name": "所蔵", "attribute_value_mlt": [{"subitem_select_item": "有"}]}, "item_1_select_16": {"attribute_name": "複写", "attribute_value_mlt": [{"subitem_select_item": "印刷物から複写可"}]}, "item_1_select_17": {"attribute_name": "公開状況", "attribute_value_mlt": [{"subitem_select_item": "全文公開可"}]}, "item_1_select_8": {"attribute_name": "研究科", "attribute_value_mlt": [{"subitem_select_item": "高エネルギー加速器科学研究科"}]}, "item_1_select_9": {"attribute_name": "専攻", "attribute_value_mlt": [{"subitem_select_item": "14 素粒子原子核専攻"}]}, "item_1_text_10": {"attribute_name": "学位授与年度", "attribute_value_mlt": [{"subitem_text_value": "2007"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "SENDA, Kenichi", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "0", "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": "2016-02-17"}], "displaytype": "simple", "download_preview_message": "", "file_order": 0, "filename": "甲1141_要旨.pdf", "filesize": [{"value": "203.9 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_11", "mimetype": "application/pdf", "size": 203900.0, "url": {"label": "要旨・審査要旨", "url": "https://ir.soken.ac.jp/record/706/files/甲1141_要旨.pdf"}, "version_id": "0d09e3ae-94f1-4a06-abd2-def3669479f7"}, {"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2016-02-17"}], "displaytype": "simple", "download_preview_message": "", "file_order": 1, "filename": "甲1141_本文.pdf", "filesize": [{"value": "18.0 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_11", "mimetype": "application/pdf", "size": 18000000.0, "url": {"label": "本文", "url": "https://ir.soken.ac.jp/record/706/files/甲1141_本文.pdf"}, "version_id": "cd211338-ec3e-4a0c-b0b4-1f50e84750a8"}]}, "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": "thesis", "resourceuri": "http://purl.org/coar/resource_type/c_46ec"}]}, "item_title": "Physics potential of Tokai-to-Kamioka-and-Korea neutrino oscillation experiment", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Physics potential of Tokai-to-Kamioka-and-Korea neutrino oscillation experiment"}, {"subitem_title": "Physics potential of Tokai-to-Kamioka-and-Korea neutrino oscillation experiment", "subitem_title_language": "en"}]}, "item_type_id": "1", "owner": "1", "path": ["16"], "permalink_uri": "https://ir.soken.ac.jp/records/706", "pubdate": {"attribute_name": "公開日", "attribute_value": "2010-02-22"}, "publish_date": "2010-02-22", "publish_status": "0", "recid": "706", "relation": {}, "relation_version_is_last": true, "title": ["Physics potential of Tokai-to-Kamioka-and-Korea neutrino oscillation experiment"], "weko_shared_id": 1}