Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série SEM-LPT
Domaines hep-th
Date Jeudi 15 Octobre 2015
Heure 16:00
Institut LPT
Salle Salle des Seminaires, Salle 114, 1er etage, Batiment 210
Nom de l'orateur Taoso
Prenom de l'orateur Marco
Addresse email de l'orateur
Institution de l'orateur Saclay
Titre Phenomenology of electroweak multiplets and the Galactic center excess
Résumé Electroweak multiplets are arguably among the simplest and best motivated WIMP dark matter candidates. I will review their relevant phenomenology in the light of current and future experimental searches. Predictions for searches at the high-luminosity LHC, and at an 100 TeV pp collider will be presented. Then, I will focus on indirect detection probes. I will compare the predictions of the model with the most recent bounds, discussing the impact of astrophysical uncertainties on current constraints. Finally, I will present predictions for future surveys. In the last part of the talk, I will focus on searches of a generic WIMP candidate with gamma-ray observations of the galactic center. Recently, an excess of photons has been reported from that region of the sky. This signal has been proposed as a possible hint of WIMP annihilations. Here, I will critically review its derivation. In particular, I explore realistic background diffusion models, accounting for a possible enhancement of cosmic-ray sources in the galactic center region. I will show that, taking into account the aforementioned ingredient, the astrophysical emission reproduces the morphological features of the data in a wide energy range, and there is no longer evidence on an excess.
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