TY - JOUR
T1 - Sterile neutrino at the Deep Underground Neutrino Experiment
AU - Berryman, Jeffrey M.
AU - De Gouvêa, André
AU - Kelly, Kevin J.
AU - Kobach, Andrew
N1 - Publisher Copyright:
© 2015 American Physical Society. © 2015 American Physical Society.
PY - 2015/10/20
Y1 - 2015/10/20
N2 - We investigate the potential for the Deep Underground Neutrino Experiment (DUNE) to probe the existence and effects of a fourth neutrino mass eigenstate. We study the mixing of the fourth mass eigenstate with the three active neutrinos of the Standard Model, including the effects of new sources of CP-invariance violation, for a wide range of new mass-squared differences, from lower than 10-5eV2 to higher than 1eV2. DUNE is sensitive to previously unexplored regions of the mixing angle-mass-squared difference parameter space. If there is a fourth neutrino, in some regions of the parameter space, DUNE is able to measure the new oscillation parameters (some very precisely) and clearly identify two independent sources of CP-invariance violation. Finally, we use the hypothesis that there are four neutrino mass eigenstates in order to ascertain how well DUNE can test the limits of the three-massive-neutrinos paradigm. In this way, we briefly explore whether light sterile neutrinos can serve as proxies for other, in principle unknown, phenomena that might manifest themselves in long-baseline neutrino oscillation experiments.
AB - We investigate the potential for the Deep Underground Neutrino Experiment (DUNE) to probe the existence and effects of a fourth neutrino mass eigenstate. We study the mixing of the fourth mass eigenstate with the three active neutrinos of the Standard Model, including the effects of new sources of CP-invariance violation, for a wide range of new mass-squared differences, from lower than 10-5eV2 to higher than 1eV2. DUNE is sensitive to previously unexplored regions of the mixing angle-mass-squared difference parameter space. If there is a fourth neutrino, in some regions of the parameter space, DUNE is able to measure the new oscillation parameters (some very precisely) and clearly identify two independent sources of CP-invariance violation. Finally, we use the hypothesis that there are four neutrino mass eigenstates in order to ascertain how well DUNE can test the limits of the three-massive-neutrinos paradigm. In this way, we briefly explore whether light sterile neutrinos can serve as proxies for other, in principle unknown, phenomena that might manifest themselves in long-baseline neutrino oscillation experiments.
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U2 - 10.1103/PhysRevD.92.073012
DO - 10.1103/PhysRevD.92.073012
M3 - Article
AN - SCOPUS:84945282778
SN - 1550-7998
VL - 92
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 7
M1 - 073012
ER -