Dergi makalesi Açık Erişim
CERN İşbirliği
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<identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/108749</identifier>
<creators>
<creator>
<creatorName>CERN İşbirliği</creatorName>
<affiliation>CERN</affiliation>
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<titles>
<title>Evidence For The Decay X(3872)→Ψ(2S)Γ</title>
</titles>
<publisher>Aperta</publisher>
<publicationYear>2014</publicationYear>
<dates>
<date dateType="Issued">2014-01-01</date>
</dates>
<resourceType resourceTypeGeneral="Text">Journal article</resourceType>
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<alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/108749</alternateIdentifier>
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<relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1016/j.nuclphysb.2014.06.011</relatedIdentifier>
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<rightsList>
<rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
<rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
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<descriptions>
<description descriptionType="Abstract"><p>Evidence for the decay mode X(3872)→ψ(2S)γ in B+→X(3872)K+ decays is found with a significance of 4.4 standard deviations. The analysis is based on a data sample of proton–proton collisions, corresponding to an integrated luminosity of 3 fb −1 , collected with the LHCb detector, at centre-of-mass energies of 7 and 8 TeV. The ratio of the branching fraction of the X(3872)→ψ(2S)γ decay to that of the X(3872)→J/ψγ decay is measured to be B(X(3872)→ψ(2S)γ)B(X(3872)→J/ψγ)=2.46±0.64±0.29, where the first uncertainty is statistical and the second is systematic. The measured value does not support a pure DD¯⁎ molecular interpretation of the X(3872) state.</p></description>
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