A high precision neutrino beam for a new generation of short baseline
experiments
release_4d2azn5aurgpvi4e3ykrhetvwu
by
F. Acerbi, G. Ballerini, S. Bolognesi, M. Bonesini, C. Brizzolari, G.
Brunetti, S. Carturan, M.G. Catanesi, S. Cecchini, F. Cindolo, G. Collazuol,
E. Conti, F. Dal Corso (+39 others)
2019
Abstract
The current generation of short baseline neutrino experiments is approaching
intrinsic source limitations in the knowledge of flux, initial neutrino energy
and flavor. A dedicated facility based on conventional accelerator techniques
and existing infrastructures designed to overcome these impediments would have
a remarkable impact on the entire field of neutrino oscillation physics. It
would improve by about one order of magnitude the precision on ν_μ and
ν_e cross sections, enable the study of electroweak nuclear physics at the
GeV scale with unprecedented resolution and advance searches for physics beyond
the three-neutrino paradigm. In turn, these results would enhance the physics
reach of the next generation long baseline experiments (DUNE and
Hyper-Kamiokande) on CP violation and their sensitivity to new physics. In this
document, we present the physics case and technology challenge of high
precision neutrino beams based on the results achieved by the ENUBET
Collaboration in 2016-2018. We also set the R&D milestones to enable the
construction and running of this new generation of experiments well before the
start of the DUNE and Hyper-Kamiokande data taking. We discuss the
implementation of this new facility at three different level of complexity:
ν_μ narrow band beams, ν_e monitored beams and tagged neutrino beams.
We also consider a site specific implementation based on the CERN-SPS proton
driver providing a fully controlled neutrino source to the ProtoDUNE detectors
at CERN.
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