|
Statut |
Confirmé |
|
Série |
LPTHE-PPH |
|
Domaines |
hep-ph |
|
Date |
Mardi 9 Décembre 2025 |
|
Heure |
14:00 |
|
Institut |
LPTHE |
|
Salle |
Library |
|
Nom de l'orateur |
Koechler |
|
Prenom de l'orateur |
Jordan |
|
Addresse email de l'orateur |
jordan [dot] koechler [at] gmail [dot] com |
|
Institution de l'orateur |
Torino INFN and University |
|
Titre |
Consistency of the Galactic Center Excess with cosmological and laboratory observations via leptophilic dark matter in U(1)Li-Lj models |
|
Résumé |
The particle nature of dark matter remains one of the most important open
questions in physics. An intriguing clue
is the γ-ray excess observed by Fermi-LAT toward the Galactic Center, whose
spectrum resembles the expected
signal from annihilating weakly interacting massive particles. However, many
conventional dark matter models are
now strongly constrained by direct detection and collider experiments. In this
talk, I will explore a class of
anomaly-free extensions of the Standard Model based on gauged lepton-number
differences, U(1)Li-Lj, as well as
U(1)B-L&. I will show how some of these models can simultaneously account for the
Galactic Center excess, satisfy
the relic abundance requirement, and remain consistent with laboratory
constraints. |
|
Numéro de preprint arXiv |
|
|
Commentaires |
Seminar in person in the library but also via Zoom:
https://cern.zoom.us/j/63031219326?
pwd=STlDY2l0UTZOTWd3Ty8zaWVQSzNTdz09
|
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Fichiers attachés |
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