Deciphering Top Flavor Violation at the LHC with B Factories

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Deciphering Top Flavor Violation at the LHC with B Factories

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dc.contributor.author Fox, Patrick
dc.contributor.author Ligeti, Zoltan
dc.contributor.author Papucci, Michele
dc.contributor.author Perez, Gilad
dc.contributor.author Schwartz, Matthew D
dc.date.accessioned 2012-01-30T19:42:42Z
dc.date.issued 2008
dc.identifier.citation Fox, Patrick, Zoltan Ligeti, Michele Papucci, Gilad Perez, and Matthew Schwartz. 2008. Deciphering top flavor violation at the LHC with B factories. Physical Review D 78(5): 054008. en_US
dc.identifier.issn 1550-2368 en_US
dc.identifier.uri http://nrs.harvard.edu/urn-3:HUL.InstRepos:8063809
dc.description.abstract The LHC will have unprecedented sensitivity to flavor-changing neutral current (FCNC) top quark decays, whose observation would be a clear sign of physics beyond the standard model. Although many details of top flavor violation are model dependent, the standard model gauge symmetries relate top FCNCs to other processes, which are strongly constrained by existing data. We study these constraints in a model independent way, using a low energy effective theory from which the new physics is integrated out. We consider the most important operators which contribute to top FCNCs and analyze the current constraints on them. We find that the data rule out top FCNCs at a level observable at the LHC due to most of the operators comprising left-handed first or second generation quark fields, while there remains a substantial window for top decays mediated by operators with right-handed charm or up quarks. If FCNC top decays are observed at the LHC, such an analysis may help decipher the underlying physics. en_US
dc.description.sponsorship Physics en_US
dc.language.iso en_US en_US
dc.publisher American Physical Society en_US
dc.relation.isversionof doi:10.1103/PhysRevD.78.054008 en_US
dc.relation.hasversion http://arxiv.org/abs/0704.1482 en_US
dash.license LAA
dc.subject high energy physics en_US
dc.subject phenomenology en_US
dc.title Deciphering Top Flavor Violation at the LHC with B Factories en_US
dc.type Journal Article en_US
dc.description.version Author's Original en_US
dc.relation.journal Physical Review D en_US
dash.depositing.author Schwartz, Matthew D
dc.date.available 2012-01-30T19:42:42Z

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