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SUMMARY:Towards an Effective Field Theory of Structure Formation - Valenti
 n Assassi (DAMTP/ University of Cambridge)
DTSTART:20140606T120000Z
DTEND:20140606T130000Z
UID:TALK52138@talks.cam.ac.uk
CONTACT:Helvi Witek
DESCRIPTION:Over the next decade\, large scale structure (LSS) surveys wil
 l play an increasingly important role in the measurement of cosmological p
 arameters and as a probe of initial conditions. Relating the observed gala
 xies to the physics of the early universe requires a good understanding of
  several late-time sources of non-linear effects. In this talk\, I will ex
 plain how\, looking at large scales\, effective field theory (EFT) offers 
 a natural framework to deal with these non-linearities. After reviewing th
 e recently developed effective field theory of large scale structure\, I w
 ill explain how the halo model - a model relating the density of dark matt
 er halo to the underlying dark matter density - can be understood in the c
 ontext of EFT. In the final part of the talk\, I will show explicit comput
 ations of halo statistics and discuss their observational consequences.
LOCATION:Pavilion B Potter Room (B1.19)
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