Excited tau lepton contribution to $W->tau nu(tau)$ decay at the one-loop level

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dc.creatorDiaz, Rodolfo A.
dc.creatorMartinez, R.
dc.creatorSampayo, O. A.
dc.date2003-02-07
dc.date.accessioned2026-07-07T10:16:34Z
dc.date.available2026-07-07T10:16:34Z
dc.descriptionWe evaluate the compositeness effects of tau lepton on the vertex W-tau-nu(tau) in the context of an effective Lagrangian approach. We consider that only the third family is composed and we get the corrections to the non universal lepton coupling g_(tau)/g_(e). As the experimental bounds on non universal lepton couplings in W decays are weak, we find that the excited particles contributions do not give realistic limits on the excited mass, since they lead to Lambda<m*.
dc.description7 pages, 3 figures, version to appear in Modern Physics Letters A
dc.identifierhttps://arxiv.org/abs/hep-ph/0302057
dc.identifierhttp://arxiv.org/abs/hep-ph/0302057
dc.identifierMod.Phys.Lett.A17:2327-2333,2002
dc.identifierdoi:10.1142/S0217732302008952
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/173550
dc.subjectHigh Energy Physics - Phenomenology
dc.titleExcited tau lepton contribution to $W->tau nu(tau)$ decay at the one-loop level
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