New constraints on primordial features from the galaxy two-point correlation function

نویسندگان

چکیده

Features in the primordial power spectrum represent imprinted signal density perturbations of physics and evolution early Universe. A measurement such signals will represents need to go beyond minimal assumption made for initial conditions cosmological perturbations. For first time, we study different templates with undamped oscillations or a bump from two-point correlation function measured BOSS DR12 galaxies constraining amplitude features be at most few percent. Constraints are competitive ones obtained {\em Planck} DR3.

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ژورنال

عنوان ژورنال: Physical review

سال: 2023

ISSN: ['0556-2813', '1538-4497', '1089-490X']

DOI: https://doi.org/10.1103/physrevd.107.043532