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SUMMARY:Single versus multifield inflation after Planck - Chris Byrnes (Su
 ssex)
DTSTART:20151019T120000Z
DTEND:20151019T130000Z
UID:TALK60809@talks.cam.ac.uk
CONTACT:Tommaso Giannantonio
DESCRIPTION:After the Planck 2015 results\, which remain consistent with s
 ome of the simplest single-field models of inflation\, one may ask whether
  there remains any motivation to consider inflationary models with multipl
 e light fields. I discuss this question\, and present one way of answering
  it by performing a Bayesian model comparison between the curvaton scenari
 o (which has two fields and at least four free parameters) and simpler sin
 gle-field scenarios. I also show an application to one of the cosmological
  anomalies\, the dipolar power asymmetry observed in the CMB temperature.\
 n
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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