Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série LPT-PTH
Domaines hep-ph
Date Jeudi 28 Novembre 2019
Heure 16:00
Institut LPT
Salle 114
Nom de l'orateur Fajfer
Prenom de l'orateur Svetlana
Addresse email de l'orateur
Institution de l'orateur Institut "Jožef Stefan Ljubljana
Titre Muon anomalous magnetic moment in the light of New Physics
Résumé The observed muon anomalous magnetic moment deviates from the Standard Model predictions at the level of 4 sigma. The discrepancy can be explained by the presence of New Physics. The simplest explanation assumes the existence of new scalar or gauge bosons. As an example of new scalars we consider scalar leptoquark contributions. In particular, a mechanism that calls for mixing of two scalar leptoquarks of the same electric charge through the interaction with the Higgs field, where the two leptoquarks separately couple to the quark-muon pairs of opposite chirality structures. Another example is a gauge boson which arrises in the U(1) extension of the SM. The parameter space of such a Z’ model is strongly constrained by the discrepancy between experimental result and theoretical prediction for the muon anomalous magnetic moment.
Numéro de preprint arXiv
Commentaires
Fichiers attachés

Pour obtenir l' affiche de ce séminaire : [ Postscript | PDF ]

[ Annonces ]    [ Abonnements ]    [ Archive ]    [ Aide ]    [ ]
[ English version ]