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SUMMARY:Compressing bispectra and exploring trispectra: probing the non-Ga
 ussian component of the density field - Davide Gualdi (ICC\, University of
  Barcelona)
DTSTART:20210125T130000Z
DTEND:20210125T140000Z
UID:TALK154759@talks.cam.ac.uk
CONTACT:Sunny Vagnozzi
DESCRIPTION:Beyond standard power spectrum analyses of large scale structu
 re (LSS) clustering data-sets\, higher order statistics provide a unique w
 indow on the non-linear evolution of the galaxy/matter density field\, bot
 h due to gravitational collapse and potentially also due to primordial non
 -Gaussianity. In the first part of the talk I will show how to efficiently
  compress the bispectrum data-vector (lowest higher order statistic) in or
 der to fully exploit its potential to improve cosmological parameters cons
 traints. I will then present the first steps towards including the trispec
 trum in LSS analyses and discuss its added benefit with respect to power s
 pectrum and bispectrum.
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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