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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-7906
DTSTART:20220914T210000Z
DURATION:PT1H0M0S
DTSTAMP:20260414T071400Z
LAST-MODIFIED:20220913T195322Z
LOCATION:Chamberlin 5280
SUMMARY:The BOSS bispectrum analysis at one loop from the Effective Fi
 eld Theory of Large-Scale Structure\, Theory Seminar (High Energy/Cosm
 ology)\, Matthew Lewandowski\, Northwestern U.
DESCRIPTION:In this talk\, I will discuss our recent analysis of the B
 OSS power spectrum monopole and quadrupole\, and the bispectrum monopo
 le and quadrupole data\, using the predictions from the Effective Fiel
 d Theory of Large-Scale Structure (EFTofLSS). Specifically\, we use th
 e one-loop prediction for the power spectrum and the bispectrum monopo
 le\, and the tree level for the bispectrum quadrupole. After validatin
 g our pipeline against numerical simulations as well as checking for s
 everal internal consistencies\, we apply it to the observational data.
  We find that analyzing the bispectrum monopole to higher wavenumbers 
 thanks to the one-loop prediction\, as well as the addition of the tre
 e-level quadrupole\, significantly reduces the error bars with respect
  to our original analysis of the power spectrum at one loop and bispec
 trum monopole at tree level. We find significant error bar reduction w
 ith respect to the power spectrum-only analysis.  Remarkably\, the res
 ults are compatible with the ones obtained with a power-spectrum-only 
 analysis\, showing the power of the EFTofLSS in simultaneously predict
 ing several observables. We find no tension with Planck.
URL:https://www.physics.wisc.edu/events/?id=7906
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