Séminaire / Seminar GReCO |
| « Primordial Gauge fields and particle production during inflation » |
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Maleknejad Azadeh |
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Primordial SU(2) gauge fields can contribute to the physics of inflation.
In that class of models, the gauge field acquires a VEV which is P and CP breaking and profoundly enriches the phenomenology of particles with spin. Their rich phenomenology and unique observational features, e.g., chiral primordial gravitational waves, turned this class of models to a hot topic. In this talk, I will briefly review the different realizations of these models. I will tell you about the three different types of particles produced by the SU(2) gauge field, i.e., scalar, fermion, and spin-2 particles. The new spin-2 field produces chiral gravitational waves which can be detected with LiteBIRD. Last but not least, I will tell you about the fermion generation during inflation provided by this class as their yet another generous opportunity! |
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lundi 16 septembre 2019 - 11:00 Salle des séminaires Évry Schatzman Institut d'Astrophysique de Paris |
| Pages web du séminaire / Seminar's webpage |