Measurement of the Branching Fraction for ψ(3770) → γχ_{c0}

dc.contributor.ORCID0000-0003-0867-2189 (Lou, X)en_US
dc.contributor.authorAblikim, M.en_US
dc.contributor.authorAchasov, M. N.en_US
dc.contributor.authorAi, X. C.en_US
dc.contributor.authorAlbayrak, O.en_US
dc.contributor.authorAlbrecht, M.en_US
dc.contributor.authorAmbrose, D. J.en_US
dc.contributor.authorAmoroso, A.en_US
dc.contributor.authorLou, Xinchouen_US
dc.contributor.authorBESIII Collaborationen_US
dc.contributor.utdAuthorLou, Xinchouen_US
dc.date.accessioned2016-09-26T21:44:35Z
dc.date.available2016-09-26T21:44:35Z
dc.date.created2016-02-10en_US
dc.date.issued2016-02-10en_US
dc.description.abstractBy analyzing a data set of 2.92 fb⁻¹ of e⁺e⁻ collision data taken at √s̅ = 3.773 GeV and 106.41 x 10⁻⁶ ψ3686) decays taken at √s̅ = 3.686 GeV with the BESIII detector at the BEPCII collider, we measure the branching fraction and the partial decay width for ψ3770) → γχ(c0) to be B(ψ(3770) → γχ(c0)) = (6.88 ± 0.28 ± 0.67) x 10⁻³ and Γ[ψ(3770) → γχ(c0)] = (187 ± 8 ± 19) keV, respectively. These are the most precise measurements to date.en_US
dc.description.sponsorshipThis work is supported in part by the National Key Basic Research Program of China under Contract Nos. 2009CB825204 and 2015CB856700; National Natural Science Foundation of China (NSFC) under Contracts Nos. 10935007, 11125525, 11235011, 11305180, 11322544, 11335008, 11425524; Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contracts Nos. 11179007, U1232201, U1332201; CAS under Contracts Nos. KJCX2-YW-N29, KJCX2-YW-N45; German Research Foundation DFG under Collaborative Research Center Contract No. CRC-1044; Ministry of Development of Turkey under Contract No. DPT2006K-120470; Russian Foundation for Basic Research under Contract No. 14-07-91152; U.S. Department of Energy under Contracts Nos. DE-FG02-04ER41291, DE-FG02-05ER41374, DE-FG02-94ER40823, DESC0010118; WCU Program of National Research Foundation of Korea under Contract No. R32-2008-000-10155-0.en_US
dc.identifier.bibliographicCitationAblikim, M., M. N. Achasov, X. C. Ai, O. Albayrak, et al. 2016. "Measurement of the branching fraction for ψ(3770) → γχ_{c0}." Physics Letters B 753, doi:10.1016/j.physletb.2015.11.074en_US
dc.identifier.issn0370-2693en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/5079
dc.identifier.volume753en_US
dc.language.isoenen_US
dc.publisherElsevier Science BVen_US
dc.relation.urihttp://dx.doi.org/10.1016/j.physletb.2015.11.074
dc.rightsCC BY 4.0 (Attribution)en_US
dc.rights©2015 The Authorsen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourcePhysics Letters B
dc.subjectCross sections (Nuclear physics)en_US
dc.subjectQuarkoniumsen_US
dc.subjectMonte Carlo methodsen_US
dc.subjectPhase transformations (Statistical physics)en_US
dc.subjectMesons—Decayen_US
dc.subjectAtomic massen_US
dc.titleMeasurement of the Branching Fraction for ψ(3770) → γχ_{c0}en_US
dc.type.genreArticleen_US

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