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SUMMARY:Invisibles Journal Club: New Light Species and the CMB
DTSTART;VALUE=DATE-TIME:20130423T130000Z
DTEND;VALUE=DATE-TIME:20130423T140000Z
DTSTAMP;VALUE=DATE-TIME:20260702T214341Z
UID:indico-event-1909@indico.ific.uv.es
DESCRIPTION:Webinar from Barcelona: I will discuss recent work done in col
 laboration with Christopher Brust and David E. Kaplan. Specifically\, I wi
 ll consider the effects of new light species on the Cosmic Microwave Backg
 round within the framework of effective field theory. These effects are pa
 rameterized in terms of the relativistic degrees of freedom present at rec
 ombination. After reviewing the relevant details of early universe thermod
 ynamics\, I will provide a map between the parameters of any particular th
 eory and the predicted effective number of degrees of freedom. I will then
  use this map to interpret the recent results from the Planck satellite\, 
 presenting new constraints on the parameter space of several models contai
 ning new light species.\n\nhttps://indico.ific.uv.es/event/1909/
LOCATION:Edf. Institutos de Investigación Sala Seminarios IFIC
URL:https://indico.ific.uv.es/event/1909/
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