TY  - JOUR
AU  - Coloma, P.
AU  - Lopez-Pavon, J.
AU  - Rosauro-Alcaraz, S.
AU  - Urrea, S.
PY  - 2021
DA  - 2021//
TI  - New physics from oscillations at the DUNE near detector, and the role of systematic uncertainties
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 065
EP  - 33pp
VL  - 08
IS  - 8
PB  - Springer
KW  - Beyond Standard Model
KW  - Neutrino Physics
AB  - We study the capabilities of the DUNE near detector to probe deviations from unitarity of the leptonic mixing matrix, the 3+1 sterile formalism and Non-Standard Interactions affecting neutrino production and detection. We clarify the relation and possible mappings among the three formalisms at short-baseline experiments, and we add to current analyses in the literature the study of the nu(mu)-> nu(tau) appearance channel. We study in detail the impact of spectral uncertainties on the sensitivity to new physics using the DUNE near detector, which has been widely overlooked in the literature. Our analysis shows that this plays an important role on the results and, in particular, that it can lead to a strong reduction in the sensitivity to sterile neutrinos from nu(mu)-> nu(e) transitions, by more than two orders of magnitude. This stresses the importance of a joint experimental and theoretical effort to improve our understanding of neutrino nucleus cross sections, as well as hadron production uncertainties and beam focusing effects. Nevertheless, even with our conservative and more realistic implementation of systematic uncertainties, we find that an improvement over current bounds in the new physics frameworks considered is generally expected if spectral uncertainties are below the 5% level.
SN  - 1029-8479
UR  - https://arxiv.org/abs/2105.11466
UR  - https://doi.org/10.1007/JHEP08(2021)065
DO  - 10.1007/JHEP08(2021)065
LA  - English
N1  - WOS:000686712300001
ID  - Coloma_etal2021
ER  -