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SUMMARY:The bispectrum of reconstructed CMB lensing convergence - Aleksand
 r Bowkis (University of Cambridge)
DTSTART:20220126T131500Z
DTEND:20220126T134500Z
UID:TALK169046@talks.cam.ac.uk
CONTACT:Hannah Uebler
DESCRIPTION:Gravitational lensing of the cosmic microwave background (CMB)
  is a powerful probe of cosmology\, providing valuable information on the 
 gravitational potential of large scale structure. The power spectrum of CM
 B lensing convergence has been used to help constrain cosmological paramet
 ers. The lensing bispectrum is expected to be detectable in forthcoming CM
 B experiments such as the Simons Observatory and this signal has the poten
 tial to significantly improve constraints on cosmological parameters\, for
  example the sum of neutrino masses\, the matter density and the amplitude
  of primordial fluctuations. In this talk I will describe work on understa
 nding the bias terms present in the reconstructed bispectrum of CMB lensin
 g convergence. 
LOCATION:The Hoyle Lecture Theatre + Zoom 
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