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SUMMARY:Mikhail Shaposhnikov (EPFL Lausanne)
DTSTART:20210223T110000Z
DTEND:20210223T120000Z
DTSTAMP:20260513T204618Z
UID:CCTP_HEP/39
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CCTP_HEP/39/
 ">Einstein-Cartan gravity: Inflation\, Dark Matter and Electroweak Symmetr
 y Breaking</a>\nby Mikhail Shaposhnikov (EPFL Lausanne) as part of CCTP HE
 P Seminars\n\n\nAbstract\nIt is well-known since the works of Utiyama and 
 Kibble that the gravitational force can be obtained by gauging the Lorentz
  group\, which puts gravity on the same footing as the Standard Model fiel
 ds. The resulting theory - Einstein-Cartan gravity - happens to be very in
 teresting. First\, it incorporates Higgs inflation at energies below the o
 nset of the strong-coupling of the theory. Second\, it contains a four-fer
 mion interaction that originates from torsion associated with spin degrees
  of freedom. This interaction leads to a novel universal mechanism for pro
 ducing singlet fermions in the Early Universe. These fermions can play the
  role of dark matter particles. Finally\, it may generate the electroweak 
 symmetry breaking by a non-perturbative gravitational effect.\n
LOCATION:https://researchseminars.org/talk/CCTP_HEP/39/
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