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, ωm, 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 (1010 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 σ8 with Planck measurements, finding consistency at 1.2σ and 0.6σ, respectively.

BOSS Correlation Function analysis from the Effective Field Theory of Large-Scale Structure / Zhang, P.; D'Amico, G.; Senatore, L.; Zhao, C.; Cai, Y.. - In: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS. - ISSN 1475-7516. - 2022:2(2022). [10.1088/1475-7516/2022/02/036]

BOSS Correlation Function analysis from the Effective Field Theory of Large-Scale Structure

D'Amico G.;
2022

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, ωm, 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 (1010 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 σ8 with Planck measurements, finding consistency at 1.2σ and 0.6σ, respectively.
BOSS Correlation Function analysis from the Effective Field Theory of Large-Scale Structure / Zhang, P.; D'Amico, G.; Senatore, L.; Zhao, C.; Cai, Y.. - In: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS. - ISSN 1475-7516. - 2022:2(2022). [10.1088/1475-7516/2022/02/036]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2919910
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