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Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/102102
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dc.contributor.authorAad, G.-
dc.contributor.authorATLAS Collaboration,-
dc.date.issued2014-
dc.identifier.citationPhysical Review Letters, 2014; 113(21):212004-1-212004-18-
dc.identifier.issn1079-7114-
dc.identifier.issn1079-7114-
dc.identifier.urihttp://hdl.handle.net/2440/102102-
dc.description.abstractA search for excited states of the B+/- c meson is performed using 4.9fb -1 of 7 TeV and 19.2fb -1 of 8 TeV pp collision data collected by the ATLAS experiment at the LHC. A new state is observed through its hadronic transition to the ground state, with the latter detected in the decay B+/- c ->J/psi pi +/-. The state appears in the m(B+/- c pi+pi -)- m(B+/- c)-2m(pi +/-) mass difference distribution with a significance of 5.2 standard deviations. The mass of the observed state is 6842+/-4+/-5MeV, where the first error is statistical and the second is systematic. The mass and decay of this state are consistent with expectations for the second S-wave state of the B+/- c meson, B+/- c(2S).-
dc.description.statementofresponsibilityG. Aad … P. Jackson … L. Lee … A. Petridis … N. Soni ... M. White ... et al. (ATLAS Collaboration)-
dc.language.isoen-
dc.publisherAmerican Physical Society-
dc.rights© 2014 CERN, for the ATLAS Collaboration. This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.-
dc.source.urihttp://dx.doi.org/10.1103/physrevlett.113.212004-
dc.subjectATLAS Collaboration-
dc.titleObservation of an excited B±c meson state with the ATLAS detector-
dc.title.alternativeObservation of an excited B+/- c meson state with the ATLAS detector-
dc.typeJournal article-
dc.identifier.doi10.1103/PhysRevLett.113.212004-
pubs.publication-statusPublished-
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