Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/119410
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dc.contributor.authorGraugés Pous, Eugeni-
dc.contributor.authorBABAR Collaboration-
dc.date.accessioned2018-01-30T12:14:28Z-
dc.date.available2018-01-30T12:14:28Z-
dc.date.issued2016-07-19-
dc.identifier.issn1550-7998-
dc.identifier.urihttp://hdl.handle.net/2445/119410-
dc.description.abstractMany models of physics beyond the standard model predict the existence of new Abelian forces with new gauge bosons mediating interactions between "dark sectors" and the standard model. We report a search for a dark boson Z ′ coupling only to the second and third generations of leptons in the reaction e + e − → μ + μ − Z ′ , Z ′ → μ + μ − using 514     fb − 1 of data collected by the BABAR experiment. No significant signal is observed for Z ′ masses in the range 0.212-10 GeV. Limits on the coupling parameter g ′ as low as 7 × 10 − 4 are derived, leading to improvements in the bounds compared to those previously derived from neutrino experiments.-
dc.format.extent1 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoeng-
dc.publisherAmerican Physical Society-
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1103/PhysRevD.94.011102-
dc.relation.ispartofPhysical Review D, 2016, vol. 94, num. 1, p. 11102-1-11102-7-
dc.relation.urihttps://doi.org/10.1103/PhysRevD.94.011102-
dc.rights(c) American Physical Society, 2016-
dc.subject.classificationPartícules (Matèria)-
dc.subject.classificationMatèria fosca (Astronomia)-
dc.subject.otherParticles-
dc.subject.otherDark matter (Astronomy)-
dc.titleSearch for a muonic dark force at BaBar-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.identifier.idgrec669776-
dc.date.updated2018-01-30T12:14:28Z-
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess-
Appears in Collections:Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Física Quàntica i Astrofísica)

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