Neutrino factories

Soler, F. J. P.

doi:10.1063/1.4915580

Cited by 1 publication

(2 citation statements)

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“…A major goal of present and future long-baseline neutrino oscillation experiments is to establish that leptons violate CP, or else to place a stringent upper limit on any such violation. (For recent status reviews see [1][2][3][4][5][6][7][8][9][10][11][12].) Our thinking about these experiments usually assumes the standard neutrino paradigm, in which there are just three neutrino mass eigenstates separated by just two independent mass-squared splittings, three mixing angles θ ij , and just one CP-violating phase δ CP relevant to oscillation.…”

Section: Introductionmentioning

confidence: 99%

“…(For recent status reviews see [1][2][3][4][5][6][7][8][9][10][11][12].) Our thinking about these experiments usually assumes the standard neutrino paradigm, in which there are just three neutrino mass eigenstates separated by just two independent mass-squared splittings, three mixing angles θ ij , and just one CP-violating phase δ CP relevant to oscillation.…”

Section: Introductionmentioning

confidence: 99%

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The impact of sterile neutrinos on CP measurements at long baselines

Gandhi

Kayser

Masud

et al. 2015

J. High Energ. Phys.

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With the Deep Underground Neutrino Experiment (DUNE) as an example, we show that the presence of even one sterile neutrino of mass ∼1 eV can significantly impact the measurements of CP violation in long baseline experiments. Using a probability level analysis and neutrino-antineutrino asymmetry calculations, we discuss the large magnitude of these effects, and show how they translate into significant event rate deviations at DUNE. Our results demonstrate that measurements which, when interpreted in the context of the standard three family paradigm, indicate CP conservation at long baselines, may, in fact hide large CP violation if there is a sterile state. Similarly, any data indicating the violation of CP cannot be properly interpreted within the standard paradigm unless the presence of sterile states of mass O(1 eV) can be conclusively ruled out. Our work underscores the need for a parallel and linked short baseline oscillation program and a highly capable near detector for DUNE, in order that its highly anticipated results on CP violation in the lepton sector may be correctly interpreted.

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Section: Introductionmentioning

confidence: 99%