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SUMMARY:Cosmology and Unification - Raman Sundrum (University of Maryland)
DTSTART:20210308T160000Z
DTEND:20210308T170000Z
UID:TALK154960@talks.cam.ac.uk
CONTACT:Sunny Vagnozzi
DESCRIPTION:I will review how future measurements of primordial Non-Gaussi
 anities in the CMB\, Large Scale Structure and 21-cm cosmology can probe v
 ery heavy particle physics at inflationary energy scales.  Intuitively\, t
 he production of heavy particles is due to the “Hawking temperature” o
 f inflationary spacetime\, and their measurement is via their decay into i
 nflatons. Even greater mass reach is shown to be possible via "chemical po
 tential" enhancement. These mechanisms are applied to plausible targets\, 
 namely our most ambitious gauge-Higgs and extra-dimensional theories\, suc
 h as Orbifold Grand Unification\, “dark” sectors\, and the Standard Mo
 del itself\, with particles as exotic as spin-2 Kaluza Klein gravitons. I 
 show how the Hierarchy "Problem" of the Standard Model becomes an asset in
  this context\, readily allowing its particles to have the requisite Hubbl
 e-scale masses during inflation\, via the mechanism of "Heavy-Lifting".
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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