Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Domaines hep-ph
Date Jeudi 15 Mars 2018
Heure 16:00
Institut LPT
Salle 114
Nom de l'orateur Sala
Prenom de l'orateur Filippo
Addresse email de l'orateur
Institution de l'orateur DESY
Titre Proposal of new BSM searches at the LHC and at telescopes
Résumé The LHC has pushed the scale of the needed new physics (NP) beyond the ~ TeV range. How to experimentally test NP models at and beyond those scales? A first possibility is to look for low energy remnants of such theories, like pseudo-Goldstone bosons (aka ALPs) from an approximate global symmetry. I will show how ALP masses between a few GeV and 60 GeV are poorly constrained, derive a new bound on diphoton resonances in that range, and propose new related searches at ATLAS, CMS and LHCb. A second possibility is to look for DM (much) heavier than a TeV in cosmic rays, that are observed up to 100 TeV and beyond by several ongoing and near-future telescopes (HESSII, HAWC, CTA, TAIGA, ANTARES, IceCube, KM3NeT, ...). I will discuss the theory and phenomenology of models that evade the so-called DM unitarity bound, and thus enrich the physics case of such telescopes.
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