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Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb

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Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb

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dc.contributor.author LHCb Collaboration
dc.contributor.author Oyanguren Campos, Arantza
dc.contributor.author Ruiz Valls, Pablo
dc.date.accessioned 2014-04-01T09:01:05Z
dc.date.available 2014-04-01T09:01:05Z
dc.date.issued 2013
dc.identifier.citation LHCb Collaboration Oyanguren Campos, Arantza Ruiz Valls, Pablo 2013 Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb Physics Letters B 724 1-3 36 45
dc.identifier.uri http://hdl.handle.net/10550/33914
dc.description.abstract Searches for the lepton flavour violating decay tau(-) -> mu(-)mu(+)mu(-) and the lepton flavour and baryon number violating decays tau(-) -> (p) over bar mu(+)mu(-) and tau(-) -> p mu(-)mu(-) have been carried out using proton-proton collision data, corresponding to an integrated luminosity of 1.0 fb(-1), taken by the LHCb experiment at root s = 7 TeV. No evidence has been found for any signal, and limits have been set at 90% confidence level on the branching fractions: B(tau(-) -> mu(-)mu(+)mu(-) < 8.0 x 10(-8), B(tau(-) -> <(p)over bar>mu(+)mu(-)) < 3.3 x 10(-7) and B(tau(-) -> p mu(-)mu(-)) < 4.4 x 10(-7). The results for the tau(-) -> (p) over bar mu(+)mu(-) and tau(-) -> p mu(-)mu(-) decay modes represent the first direct experimental limits on these channels.
dc.relation.ispartof Physics Letters B, 2013, vol. 724, num. 1-3, p. 36-45
dc.subject Física nuclear
dc.title Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb
dc.type journal article es_ES
dc.date.updated 2014-04-01T09:01:05Z
dc.identifier.doi 10.1016/j.physletb.2013.05.063
dc.identifier.idgrec 094085
dc.rights.accessRights open access es_ES
dc.identifier.url 10.1016/j.physletb.2013.05.063

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