%0 Journal Article
%T Impact of cross-section uncertainties on supernova neutrino spectral parameter fitting in the Deep Underground Neutrino Experiment
%A DUNE Collaboration (Abud, A. A. et al
%A Amedo, P.
%A Antonova, M.
%A Barenboim, G.
%A Benitez Montiel, C.
%A Cervera-Villanueva, A.
%A De Romeri, V.
%A Garcia-Peris, M. A.
%A Lopez March, N.
%A Martin-Albo, J.
%A Martinez Mirave, P.
%A Mena, O.
%A Molina Bueno, L.
%A Novella, P.
%A Pompa, F.
%A Rocabado Rocha, J. L.
%A Sorel, M.
%A Soto-Oton, J.
%A Tortola, M.
%A Tuzi, M.
%A Valle, J. W. F.
%A Yahlali, N.
%J Physical Review D
%D 2023
%V 107
%N 11
%I Amer Physical Soc
%@ 2470-0010
%G English
%F DUNECollaborationAbud_etal2023
%O WOS:001063367400002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5669), last updated on Fri, 26 Apr 2024 07:26:44 +0000
%X A primary goal of the upcoming Deep Underground Neutrino Experiment (DUNE) is to measure the Oo10 thorn MeV neutrinos produced by a Galactic core-collapse supernova if one should occur during the lifetime of the experiment. The liquid-argon-based detectors planned for DUNE are expected to be uniquely sensitive to the & nu;e component of the supernova flux, enabling a wide variety of physics and astrophysics measurements. A key requirement for a correct interpretation of these measurements is a good understanding of the energy-dependent total cross section & sigma;oE & nu; thorn for charged-current & nu;e absorption on argon. In the context of a simulated extraction of supernova & nu;e spectral parameters from a toy analysis, we investigate the impact of & sigma;oE & nu; thorn modeling uncertainties on DUNE's supernova neutrino physics sensitivity for the first time. We find that the currently large theoretical uncertainties on & sigma;oE & nu; thorn must be substantially reduced before the & nu;e flux parameters can be extracted reliably; in the absence of external constraints, a measurement of the integrated neutrino luminosity with less than 10% bias with DUNE requires & sigma;oE & nu; thorn to be known to about 5%. The neutrino spectral shape parameters can be known to better than 10% for a 20% uncertainty on the cross-section scale, although they will be sensitive to uncertainties on the shape of & sigma;oE & nu; thorn . A direct measurement of low-energy & nu;e-argon scattering would be invaluable for improving the theoretical precision to the needed level.
%R 10.1103/PhysRevD.107.112012
%U https://arxiv.org/abs/2303.17007
%U https://doi.org/10.1103/PhysRevD.107.112012
%P 112012-25pp