High Energy Phenomenology Seminar: JiJi Fan (Brown) "Cosmological probes of Higgs dynamics in the early Universe"

Speaker JiJi Fan (Brown)
Date: 4/12/2019
Time: 12 p.m.
Location: 464 Loomis
Event Contact: Lauren Pearce
Sponsor: Department of Physics
Event Type: Seminar/Symposium

While the Higgs mass is fixed today, it is possible that the Higgs mass is dynamical and varied with time in the early Universe. In particular, there is an intriguing possibility that if the Higgs field couples to some oscillating scalar (e.g., a modulus) in the early Universe, the Higgs oscillated between symmetry preserving and broken phases. I will discuss one possible cosmological probe of this type of phase oscillation. If the Higgs couples to the inflaton, the phase oscillations could imprint on the primordial spectrum, resulting in novel “wavepacket" features. I will explain the origin of the wavepacket feature and briefly discuss a potential observable through measuring fine structures in the CMB temperature spectrum

To request disability-related accommodations for this event, please contact the person listed above, or the unit hosting the event.

Event Mailing List

Receive Illinois Physics events weekly in your inbox.


Remove me!