5 papers
Dark energy from neutrino interactions in Unimodular Gravity
Alejandro Gil-Ocaranza, Josue De-Santiago, Mauricio Lopez-Hernandez +1
We investigate a dark energy scenario generated by neutrino interactions mediated by a light scalar field, in which finite-temperature corrections induce an effective neutrino mass…
Crosschecking Cosmic Distances from DESI BAO and DES SNe
Mauricio Lopez-Hernandez, Eoin à Colgáin, Saeed Pourojaghi +1
We perform a consistency check of DESI DR2 BAO constraints ( by reconstructing the same quantities from DES supernovae (SNe) in bins with the same effective reds…
Comparing Hemispheres: Anisotropy in the deceleration parameter
Mauricio Lopez-Hernandez, Josue De-Santiago
We present a hemispherical comparison analysis of the deceleration parameter using the Pantheon+ sample of Type Ia supernovae to test the isotropy of cosmic acceleration and…
On frequentist confidence intervals in a non-Gaussian regime
Shubham Barua, Shantanu Desai, Mauricio Lopez-Hernandez +1
We study frequentist confidence intervals based on graphical profile likelihoods (Wilks' theorem, likelihood integration), and the Feldman-Cousins (FC) prescription, a generalisati…
Is there a dynamical tendency in H0 with late time measurements?
Mauricio Lopez-Hernandez, Josue De-Santiago
The discrepancy between the Hubble constant values derived from early-time and late-time measurements, reaching up to , represents the most serious challenge in modern c…