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SUMMARY:Matteo Fasiello (IFT Madrid)
DTSTART:20210208T150000Z
DTEND:20210208T160000Z
DTSTAMP:20260423T003256Z
UID:IFTWeb/33
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/IFTWeb/33/">
 Probing Inflation with Primordial Messengers</a>\nby Matteo Fasiello (IFT 
 Madrid) as part of IFT-Madrid Webinars\n\n\nAbstract\nSome of our best ide
 as on early universe physics are about to be put to the test by an unprece
 dented array of cosmological probes. The data these will collect span a va
 st range of scales\, from the CMB to large scale structure\, from pulsar t
 iming arrays all the way to laser interferometers. This combined wealth of
  new information holds the potential to transform our understanding of cos
 mology and\, possibly\, also particle physics. In this context probing the
  earliest accessible epoch\, inflation\, is crucial: inflation can provide
  a cosmological portal to otherwise inaccessible energy scales. This is th
 e “cosmological collider” idea. The spectacular success of the inflati
 onary paradigm in explaining the origin of cosmic structure demands that w
 e tackle a number of compelling questions still in need of an answer:  wha
 t is the energy scale of inflation?  What fields were active during inflat
 ion?\n\nIn this talk I will review recent progress on the inflationary fie
 ld content. I will survey different approaches to address the most pressin
 g challenges and provide examples including axion-inflation models and the
  so-called effective theory approach. I will then focus on the key observa
 bles\, starting with primordial gravitational waves\, and discuss their pr
 ospects for detection.\n
LOCATION:https://researchseminars.org/talk/IFTWeb/33/
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