Sterile neutrinos at the CNGS

Donini, A.; Maltoni, Michele; Meloni, Davide; Migliozzi, P.; Terranova, F.

doi:10.1088/1126-6708/2007/12/013

Cited by 48 publications

(51 citation statements)

References 63 publications

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“…[198] (see also Ref. [199]) because it would not change significantly the results of the global fits. planes obtained in the pragmatic 3+1-PrGLO global fit of short-baseline neutrino oscillation data compared with the 3σ allowed regions obtained from…”

Section: Global Fits Of Short-baseline Datamentioning

confidence: 99%

Light sterile neutrinos

Gariazzo

Giunti

Laveder

et al. 2015

J. Phys. G: Nucl. Part. Phys.

229

336

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Abstract. The theory and phenomenology of light sterile neutrinos at the eV mass scale is reviewed. The reactor, Gallium and LSND anomalies are briefly described and interpreted as indications of the existence of short-baseline oscillations which require the existence of light sterile neutrinos. The global fits of short-baseline oscillation data in 3+1 and 3+2 schemes are discussed, together with the implications for β-decay and neutrinoless double-β decay. The cosmological effects of light sterile neutrinos are briefly reviewed and the implications of existing cosmological data are discussed. The review concludes with a summary of future perspectives.

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Section: Global Fits Of Short-baseline Datamentioning

confidence: 99%

Light sterile neutrinos

Gariazzo

Giunti

Laveder

et al. 2015

J. Phys. G: Nucl. Part. Phys.

229

336

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“…2 Old works on sterile neutrinos at LBL can be found in [20][21][22][23][24][25][26][27][28]. More recent studies focusing on the future LBNE/DUNE experiment [29] have been recently performed in [30][31][32].…”

Section: Jhep02(2016)111mentioning

confidence: 99%

Discovery potential of T2K and NOvA in the presence of a light sterile neutrino

Agarwalla

Chatterjee

Dasgupta

et al. 2016

J. High Energ. Phys.

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Abstract:We study the impact of one light sterile neutrino on the prospective data expected to come from the two presently running long-baseline experiments T2K and NOνA when they will accumulate their full planned exposure. Introducing for the first time, the bi-probability representation in the 4-flavor framework, commonly used in the 3-flavor scenario, we present a detailed discussion of the behavior of the ν µ → ν e andν µ →ν e transition probabilities in the 3+1 scheme. We also perform a detailed sensitivity study of these two experiments (both in the stand-alone and combined modes) to assess their discovery reach in the presence of a light sterile neutrino. For realistic benchmark values of the mass-mixing parameters (as inferred from the existing global short-baseline fits), we find that the performance of both these experiments in claiming the discovery of the CP-violation induced by the standard CP-phase δ 13 ≡ δ, and the neutrino mass hierarchy get substantially deteriorated. The exact loss of sensitivity depends on the value of the unknown CP-phase δ 14 . Finally, we estimate the discovery potential of total CP-violation (i.e., induced simultaneously by the two CP-phases δ 13 and δ 14 ), and the capability of the two experiments of reconstructing the true values of such CP-phases. The typical (1σ level) uncertainties on the reconstructed phases are approximately 40 0 for δ 13 and 50 0 for δ 14 .

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“…In this case the sterile mass splitting would correspond to the atmospheric mass splitting. There is still interest in the literature ( [28,27,31]) in models in which m 4 m 3 , i.e. the sterile mass splitting is much higher than the solar and atmospheric mass splitting.…”

Section: Oscillation Into Sterile Neutrinosmentioning

confidence: 99%

“…With all these simplifications, the probabilities become: [28], the probability P (ν e → ν e ) can be written as: Reactor experiments like Bugey and CHOOZ give constraints on the θ 14 and θ 13 angles in equation (2.45): both angles are bounded to be less than 14…”

Section: Oscillation Into Sterile Neutrinosmentioning

confidence: 99%

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Sterile neutrino oscillations in MINOS and hadron production in pC collisions

Tinti

2010

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MINOS is a long baseline neutrino oscillation experiment, starting with a muon-neutrino beam, for the precise measurement of the atmospheric neutrino oscillation parameters |∆m 2 | and θ 23 . The Near Detector measures the neutrino flux and spectra before oscillations. The beam propagates for 735 km to the Far Detector, which measures the depleted spectrum after oscillations. The depletion can be interpreted as ν µ → ν τ oscillations. Subdominant ν µ → ν e oscillations may be allowed if the mixing angle θ 13 = 0.The two detectors are functionally identical in order to cancel systematic errors when using the Near Detector data to constrain the Far Detector prediction. A crucial part of the analysis is the relative calibration between the two detectors, which is known at the 2% level. A calibration procedure to remove the time and temperature dependence of the detector response using through-going cosmic muons is presented here.Although the two-detector approach reduces the systematic uncertainties related to the neutrino flux, a cross check on the neutrino parent meson ratios is performed in this thesis. The cross sections of mesons produced in proton-carbon interactions from the NA49 experiment have been measured and the results have been compared to the MINOS expectations.A neutrino oscillation analysis allowing mixing to a sterile neutrino is performed, under the assumption that the additional mass splitting is O(1 eV 2 ). The analysis uses the energy spectrum of the neutral current interaction products, as neutral current interactions are sensitive to sterile neutrino mixing but not to the active flavour neutrino mixing. The neutrino oscillation parameters have been found to be: To my parents

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Sterile neutrinos at the CNGS

Cited by 48 publications

References 63 publications

Light sterile neutrinos

Light sterile neutrinos

Discovery potential of T2K and NOvA in the presence of a light sterile neutrino

Sterile neutrino oscillations in MINOS and hadron production in pC collisions

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