Search for the X_b and Other Hidden-Beauty States in the π⁺π⁻ ϒ(1s) Channel at ATLAS

dc.contributor.ORCID0000-0003-0867-2189 (Lou, X)
dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorAad, G.en_US
dc.contributor.authorAbbott, B.en_US
dc.contributor.authorAbdallah, J.en_US
dc.contributor.authorAbdel Khalek, S.en_US
dc.contributor.authorAbdinov, O.en_US
dc.contributor.authorAben, R.en_US
dc.contributor.authorAbi, B.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLeyton, Michaelen_US
dc.contributor.authorLou, Xinchouen_US
dc.contributor.authorNamasivayam, Harisankaren_US
dc.contributor.authorReeves, Kendallen_US
dc.contributor.authorATLAS Collaborationen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorLeyton, Michaelen_US
dc.contributor.utdAuthorNamasivayam, Harisankaren_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.contributor.utdAuthorLou, Xinchouen_US
dc.date.accessioned2015-03-25T19:03:32Z
dc.date.available2015-03-25T19:03:32Z
dc.date.created2014-11-26en_US
dc.date.issued2014-11-26en_US
dc.description.abstractThis Letter presents a search for a hidden-beauty counterpart of the X(3872) in the mass ranges of 10.05-10.31 GeV and 10.40-11.00 GeV, in the channel X(b) → π⁺π⁻ϒ(1S)(→ μ⁺μ⁻), using 16.2 fb⁻¹ of √s = 8 TeV pp collision data collected by the ATLAS detector at the LHC. No evidence for new narrow states is found, and upper limits are set on the product of the X(b) cross section and branching fraction, relative to those of the ϒ(25), at the 95% confidence level using the CL(s) approach. These limits range from 0.8% to 4.0%, depending on mass. For masses above 10.1 GeV, the expected upper limits from this analysis are the most restrictive to date. Searches for production of the ϒ(1³D(j)), ϒ(10860), and ϒ(11 020) states also reveal no significant signals.en_US
dc.identifier.bibliographicCitationAad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, et al. 2015. "Search for the X_b and other hidden-beauty states in the π⁺π⁻ ϒ(1s) channel at ATLAS." Physics Letters B 740: doi:10.1016/j.physletb.2014.11.055.en_US
dc.identifier.issn0370-2693en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/4365
dc.identifier.volume740en_US
dc.language.isoen_USen_US
dc.publisherElsevieren_US
dc.relation.urihttp://dx.doi.org/10.1016/j.physletb.2014.11.055
dc.rightsCC BY 3.0 (Attribution)en_US
dc.rights©2014 The Authorsen_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en_US
dc.sourcePhysics Letters B
dc.subjectMass (Physics)en_US
dc.subjectPionsen_US
dc.subjectX(3872)en_US
dc.subjectBranching fractions (Nuclear physics)en_US
dc.subjectProton-proton interactionsen_US
dc.titleSearch for the X_b and Other Hidden-Beauty States in the π⁺π⁻ ϒ(1s) Channel at ATLASen_US
dc.typeTexten_US
dc.type.genreArticleen_US

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