BOSS Correlation Function analysis from the Effective Field Theory of Large-Scale Structure
Pierre Zhang, Guido D’Amico, Leonardo Senatore, Cheng Zhao, Yi-Fu Cai
Abstract
Abstract After calibrating the predictions of the Effective Field Theory of Large-Scale Structure against several sets of simulations, as well as implementing a new method to assert the scale cut of the theory without the use of any simulation, we analyze the Full Shape of the BOSS Correlation Function. Imposing a prior from Big Bang Nucleosynthesis on the baryon density, we are able to measure all the parameters in ΛCDM + massive neutrinos in normal hierarchy, except for the total neutrino mass, which is just bounded. When combining the BOSS Full Shape with the Baryon Acoustic Oscillation measurements from BOSS, 6DF/MGS and eBOSS, we determine the present day Hubble constant, H 0 , the present day matter fraction, Ω m , the amplitude of the primordial power spectrum, A s , and the tilt of the primordial power spectrum, n s , to 1.4 %, 4.5 %, 23.5% and 7.6% precision, respectively, at 68 %-confidence level, finding H 0 =68.19 ± 0.99 (km/s)/Mpc, Q m =0.309± 0.014, ln (10 10 A s )=3.12 +0.21 -0.26 and n s =0.963 +0.062 -0.085 , and we bound the total neutrino mass to 0.87 eV at 95 %-confidence level. These constraints are fully consistent with Planck results and the ones obtained from BOSS power spectrum analysis. In particular, we find no tension in H 0 or σ 8 with Planck measurements, finding consistency at 1.2σ and 0.6σ, respectively.