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An improved limit for Gamma(ee) of X(3872) and Gamma(ee) measurement of psi(3686)

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dc.contributor.authorZhu, S.
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dc.contributor.authorZhu, Y. S.
dc.contributor.authorZhu, Z. A.
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dc.contributor.authorZou, B. S.
dc.contributor.authorZou, J. H.
dc.contributor.buuauthorTAPAN, İLHAN
dc.contributor.departmentFen Edebiyat Fakültesi
dc.contributor.departmentFizik Bölümü
dc.contributor.researcheridCCD-9486-2022
dc.date.accessioned2024-08-14T08:38:53Z
dc.date.available2024-08-14T08:38:53Z
dc.date.issued2015-10-07
dc.description.abstractUsing the data sets taken at center-of-mass energies above 4 GeV by the BESIII detector at the BEPCII storage ring, we search for the reaction e(+)e(-) -> gamma(ISR) X(3872) -> gamma(ISR)pi(+)pi(-) J/psi via the Initial State Radiation technique. The production of a resonance with quantum numbers J(PC) = 1(++) such as the X(3872) via single photon e(+)e(-) annihilation is forbidden, but is allowed by a next-to-leading order box diagram. We do not observe a significant signal of X(3872), and therefore give an upper limit for the electronic width times the branching fraction Gamma B-X(3872)(ee)(X(3872) -> pi(+)pi(-) J/psi) < 0.13 eVat the 90% confidence level. This measurement improves upon existing limits by a factor of 46. Using the same final state, we also measure the electronic width of the psi(3686) to be Gamma(psi)(ee)(3686) ee = 2213 +/- 18(stat) +/- 99(sys) eV.
dc.description.sponsorshipNational Basic Research Program of China 2015CB856700
dc.description.sponsorshipNational Natural Science Foundation of China (NSFC) 11125525 11235011 11322544 11335008 11425524
dc.description.sponsorshipChinese Academy of Sciences
dc.description.sponsorshipJoint Large-Scale Scientific Facility Funds of the NSFC
dc.description.sponsorshipChinese Academy of Sciences 11179007 U1232201 U1332201 KJCX2-YW-N29 KJCX2-YW-N45
dc.description.sponsorshipINPAC and Shanghai Key Laboratory for Particle Physics and Cosmology
dc.description.sponsorshipGerman Research Foundation (DFG) CRC-1044
dc.description.sponsorshipEuropean Union (EU) Marie Curie Actions 627240
dc.description.sponsorshipIstituto Nazionale di Fisica Nucleare (INFN)
dc.description.sponsorshipTürkiye Cumhuriyeti Kalkınma Bakanlığı DPT2006K-120470
dc.description.sponsorshipRussian Foundation for Basic Research (RFBR) Spanish Government 14-07-91152
dc.description.sponsorshipUnited States Department of Energy (DOE) DE-FG02-04ER41291 DE-FG02-05ER41374 DE-FG02-94ER40823 DESC0010118
dc.description.sponsorshipNational Science Foundation (NSF)
dc.description.sponsorshipUniversity of Groningen (RuG)
dc.description.sponsorshipHelmholtzzentrum fur Schwerionenforschung (GSI), Darmstadt
dc.description.sponsorshipNational Research Foundation of Korea R32-2008-000-10155-0
dc.identifier.doi10.1016/j.physletb.2015.08.013
dc.identifier.endpage420
dc.identifier.issn0370-2693
dc.identifier.scopus2-s2.0-84939817891
dc.identifier.startpage414
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2015.08.013
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0370269315006140
dc.identifier.urihttps://hdl.handle.net/11452/44021
dc.identifier.volume749
dc.identifier.wos000361562900058
dc.indexed.wosWOS.SCI
dc.language.isoen
dc.publisherElsevier
dc.relation.journalPhysics Letters B
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectX(3872)
dc.subjectPsi(3686)
dc.subjectGamma(ee)
dc.subjectCharmonium spectroscopy
dc.subjectBesiii
dc.subjectAstronomy & astrophysics
dc.subjectPhysics
dc.titleAn improved limit for Gamma(ee) of X(3872) and Gamma(ee) measurement of psi(3686)
dc.typeArticle
dspace.entity.typePublication
local.contributor.departmentFen Edebiyat Fakültesi/Fizik Bölümü
local.indexed.atWOS
local.indexed.atScopus
relation.isAuthorOfPublication197aec07-a4ed-42b7-a3d3-d7476357d6ef
relation.isAuthorOfPublication.latestForDiscovery197aec07-a4ed-42b7-a3d3-d7476357d6ef

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