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        <identifier>oai:ksu.repo.nii.ac.jp:00002613</identifier>
        <datestamp>2023-09-28T02:30:47Z</datestamp>
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        <jpcoar:jpcoar xmlns:datacite="https://schema.datacite.org/meta/kernel-4/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcndl="http://ndl.go.jp/dcndl/terms/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:jpcoar="https://github.com/JPCOAR/schema/blob/master/1.0/" xmlns:oaire="http://namespace.openaire.eu/schema/oaire/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:rioxxterms="http://www.rioxx.net/schema/v2.0/rioxxterms/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="https://github.com/JPCOAR/schema/blob/master/1.0/" xsi:schemaLocation="https://github.com/JPCOAR/schema/blob/master/1.0/jpcoar_scm.xsd">
          <dc:title xml:lang="ja">DIRAC実験におけるπK原子の検出とその寿命測定</dc:title>
          <dc:title xml:lang="ja-Kana">DIRAC ジッケン ニオケル πK ゲンシ ノ ケンシュツ ト ソノ ジュミョウ ソクテイ</dc:title>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="ja">青垣, 総一郎</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja-Kana">アオガキ, ソウイチロウ</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="ja">岡田, 憲志</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja-Kana">オカダ, ケンジ</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="ja">竹内, 富士雄</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja-Kana">タケウチ, フジオ</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="ja">千葉, 雅美</jpcoar:creatorName>
            <jpcoar:creatorName xml:lang="ja-Kana">チバ, マサミ</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="ja">岩下, 芳久</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:creator>
            <jpcoar:creatorName xml:lang="ja">小林, 正明</jpcoar:creatorName>
          </jpcoar:creator>
          <jpcoar:subject subjectScheme="Other">二中間子原子</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">πK散乱長</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">πK原子寿命</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">カイラル摂動理論</jpcoar:subject>
          <jpcoar:subject subjectScheme="Other">量子色力学</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">Exotic atoms</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">πK scattering length</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">Lifetime of πK atom</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">Chiral Perturbation Theory(ChPT)</jpcoar:subject>
          <jpcoar:subject xml:lang="en" subjectScheme="Other">QCD</jpcoar:subject>
          <datacite:description descriptionType="Other">正負逆の電荷を持つπ中間子とK中間子がクーロン力でゆるく結合したπK原子（π^＋K^–、π^–K^＋）が存在することを確かめ、そのπK原子の寿命測定を行った。CERNのPS加速器で加速した24GeV/cの陽子ビームをPt標的に照射する事でπK原子を生成し、標的中で解離したπK粒子対を改良したDIRAC-IIスペクトロメータで検出に成功した。検出したπK原子の数は173 ± 54 個であり、そこから得られた基底S －状態にあるπK原子の寿命の下限値は90％の信頼度で0.8fsであった。</datacite:description>
          <datacite:description descriptionType="Other">An experiment to find πK-atoms which composed from oppositely charged π and K mesons loosely bound by Coulomb force was done by DIRAC（PS-212）group. The π K-atoms are produced in a thin platinum foil by bombarding 24GeV/c protons accelerated by CERN-PS. The π K pairs dissociated in the production target foil are observed at the first time by the DIRAC-II spectrometer. The number of detected π K atoms is 173 ± 54. The data gives a lower limit for the lifetime of π K atoms of 0.8 fs at 90% confidence level.</datacite:description>
          <datacite:description descriptionType="Other">6</datacite:description>
          <datacite:description descriptionType="Other">KJ00007509019</datacite:description>
          <datacite:description descriptionType="Other">P</datacite:description>
          <datacite:description descriptionType="Other">研究活動報告</datacite:description>
          <datacite:description descriptionType="Other">Activity Report</datacite:description>
          <datacite:date dateType="Issued">2011-07</datacite:date>
          <dc:language>jpn</dc:language>
          <dc:type rdf:resource="http://purl.org/coar/resource_type/c_6501">departmental bulletin paper</dc:type>
          <jpcoar:identifier identifierType="HDL">http://hdl.handle.net/10965/00002604</jpcoar:identifier>
          <jpcoar:identifier identifierType="URI">https://ksu.repo.nii.ac.jp/records/2613</jpcoar:identifier>
          <jpcoar:sourceIdentifier identifierType="NCID">AA11815191</jpcoar:sourceIdentifier>
          <jpcoar:sourceIdentifier identifierType="PISSN">1347-3980</jpcoar:sourceIdentifier>
          <jpcoar:sourceTitle>京都産業大学先端科学技術研究所所報</jpcoar:sourceTitle>
          <jpcoar:sourceTitle xml:lang="en">The bulletin of the Research Institute of Advanced Technology Kyoto Sangyo University</jpcoar:sourceTitle>
          <jpcoar:volume>10</jpcoar:volume>
          <jpcoar:pageStart>75</jpcoar:pageStart>
          <jpcoar:pageEnd>84</jpcoar:pageEnd>
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            <datacite:date dateType="Available">2018-01-28</datacite:date>
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