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SUMMARY:Webinar: Gravitational wave background from Standard Model physics
DTSTART;VALUE=DATE-TIME:20150609T130000Z
DTEND;VALUE=DATE-TIME:20150609T140000Z
DTSTAMP;VALUE=DATE-TIME:20261005T215723Z
UID:indico-event-2516@indico.ific.uv.es
DESCRIPTION:\n    Apart from CMB photons and neutrinos\, another principal
  carrier of information from very early epochs in the history of the unive
 rse are gravitational waves. Besides inflation\, they have been proposed t
 o contain features originating from post-inflationary phenomena such as pr
 eheating or thermal phase transitions. However\, a gravitational wave back
 ground\, akin to blackbody radiation\, is also being emitted from a plasma
  without any phase transition. In this talk the general properties of the 
 thermal background are discussed. The absence of additional relativistic d
 egrees of freedom in Planck data sets an upper bound on the total energy d
 ensity carried by gravitational waves and thereby on the highest temperatu
 re of the radiation epoch. Theoretically it might even be possible to obse
 rve the thermal background with future generations of GHz range detectors.
 \n\nhttps://indico.ific.uv.es/event/2516/
LOCATION:IFIC retransmitted from the Seminar Room\, 1.1.1
URL:https://indico.ific.uv.es/event/2516/
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