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SUMMARY:Probing the scale of grand unification with gravitational waves - 
 Valerie Domcke (CERN\,EPFL)
DTSTART:20200522T120000Z
DTEND:20200522T130000Z
UID:TALK142450@talks.cam.ac.uk
CONTACT:Chandrima Ganguly
DESCRIPTION:Cosmic strings arise as remnants of phase transitions in the e
 arly Universe\, often related to theories of grand unification (GUTs). If 
 such a phase transitions occurs at high energies\, the resulting cosmic st
 ring network generates a sizable amount of gravitational waves. Most work 
 so far has focused on the gravitational wave signal from topologically sta
 ble cosmic strings. In this talk I will introduce metastable cosmic string
 s\, which are a generic consequence of many GUTs\, are largely unconstrain
 ed so far but can be probed by current and upcoming gravitational wave exp
 eriments. As a concrete example\, I will present an SO(10) model which exp
 lains inflation\, baryogenesis and dark matter while being fully testable 
 by LIGO.
LOCATION:Zoom
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