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

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dc.contributor.authorMoscardini, Lauro
dc.contributor.authorBallardini, Mario
dc.contributor.authorMarulli, Federico
dc.date.accessioned2023-06-26T12:42:03Z
dc.date.available2023-06-26T12:42:03Z
dc.date.issued2023
dc.description.abstractFeatures in the primordial power spectrum represent the imprinted signal in the density perturbations of the physics and evolution of the early Universe. A measurement of such signals will represents the need to go beyond the minimal assumption made for the initial conditions of the cosmological perturbations. For the first time, we study different templates with undamped oscillations or a bump from the two-point correlation function measured from BOSS DR12 galaxies constraining the amplitude of the features to be at most a few percent. Constraints are competitive to the ones obtained with Planck DR3.en_US
dc.identifier.citationBallardini, M., Finelli, F., Marulli, F., Moscardini, L. and Veropalumbo, A., 2023. New constraints on primordial features from the galaxy two-point correlation function. Physical Review D, 107(4), p.043532.en_US
dc.identifier.issn2470-0010
dc.identifier.urihttp://hdl.handle.net/10566/9152
dc.language.isoenen_US
dc.publisherPhysical Reviewen_US
dc.subjectcosmologyen_US
dc.subjectinflationen_US
dc.subjectresearch areasen_US
dc.subjectlarge scale structure of the universeen_US
dc.subjectbaryon acoustic-oscillationsen_US
dc.titleNew constraints on primordial features from the galaxy two-point correlation functionen_US
dc.typeArticleen_US

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