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SUMMARY:No-Scale Supergravity Inflation - John Ellis (CERN/ KCL)
DTSTART:20151125T141500Z
DTEND:20151125T151500Z
UID:TALK61985@talks.cam.ac.uk
CONTACT:Mike Blake
DESCRIPTION:Supersymmetry is the most natural framework for physics above 
 the TeV scale\, and the corresponding framework for early-Universe cosmolo
 gy\, including inflation\, is supergravity. No-scale supergravity emerges 
 from generic string compactifications and yields a non-negative potential\
 , and is therefore a plausible framework for constructing models of inflat
 ion. No-scale inflation yields naturally predictions similar to those of t
 he Starobinsky model based on R + R2 gravity\, with a tilted spectrum of s
 calar perturbations: ns ∼ 0.96\, and small values of the tensor-to- scal
 ar perturbation ratio r < 0.1\, as favoured by Planck and other data on th
 e cosmic microwave background (CMB). Detailed measurements of the CMB may 
 provide insights into the embedding of no-scale inflation within string th
 eory as well as its links to collider physics.
LOCATION:MR2\, Centre for Mathematical Sciences
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