Nonstandard neutrino interactions in reactor and superbeam experiments

Kopp, Joachim; Lindner, M.; Ota, Toshihiko; Sato, Joe

doi:10.1103/physrevd.77.013007

Cited by 201 publications

(236 citation statements)

References 61 publications

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“…Main emphasis of our work is on exploring CP violation due to δ in the light of recent experimental findings of large value of θ 13 and how NSI could affect the discovery reach of such CP violation. Also there are some studies on CP violation in presence of non-standard interactions [27,28] before Daya Bay experiment when θ 13 was not so precisely known.…”

Section: Introductionmentioning

confidence: 99%

The discovery reach ofCPviolation in neutrino oscillation with non-standard interaction effects

Rahman

Dasgupta

Adhikari

2015

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

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We have studied the CP violation discovery reach in neutrino oscillation experiment with superbeam, neutrino factory and monoenergetic neutrino beam from electron capture process. For NSI satisfying model-dependent bound for shorter baselines (like CERN-Fréjus set-up ) there is insignificant effect of NSI on the the discovery reach of CP violation due to δ. Particularly, for superbeam and neutrino factory we have also considered relatively longer baselines for which there could be significant NSI effects on CP violation discovery reach for higher allowed values of NSI. For monoenergetic beam only shorter baselines are considered to study CP violation with different nuclei as neutrino sources. Interestingly for non-standard interactions -εeµ and εeτ of neutrinos with matter during propagation in longer baselines in superbeam, there is possibility of better discovery reach of CP violation than that with only Standard Model interactions of neutrinos with matter. For complex NSI we have shown the CP violation discovery reach in the plane of Dirac phase δ and NSI phase φij. The CP violation due to some values of δ remain unobservable with present and near future experimental facilities in superbeam and neutrino factory . However, in presence of some ranges of off-diagonal NSI phase values there are some possibilities of discovering total CP violation for any δCP value even at 5σ confidence level for neutrino factory. Our analysis indicates that for some values of NSI phases total CP violation may not be at all observable for any values of δ. Combination of shorter and longer baselines could indicate in some cases the presence of NSI. However, in general for NSIs 1 the CP violation discovery reach is better in neutrino factory set-ups. Using a neutrino beam from electron capture process for nuclei 110 50 Sn and 152 Yb, we have shown the discovery reach of CP violation in neutrino oscillation experiment. Particularly for 110 50 Sn nuclei CP violation could be found for about 51% of the possible δ values for a baseline of 130 km with boost factor γ = 500. The nuclei 152 Yb is although technically more feasible for the production of mono-energetic beam, but is found to be not suitable in obtaining good discovery reach of CP

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Section: Introductionmentioning

confidence: 99%

The discovery reach ofCPviolation in neutrino oscillation with non-standard interaction effects

Rahman

Dasgupta

Adhikari

2015

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

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“…[26,34,35]. Our experiment description follows the LBNE proposal for a long-baseline neutrino beam from Fermilab to DUSEL, but our results will hold qualitatively also for other wide band beam experiments.…”

Section: A Experimental Setupmentioning

confidence: 54%

“…The parameters ε s αβ and ε d αβ , which are closely related to the parameters ε CC,f,f αβ defined above [26,27], describe non-standard admixtures to the neutrino states produced in association with a charged lepton of flavor α or detected in a process involving a charged lepton of flavor β, respectively. Note that in ε s αβ , the first index corresponds to the flavor of the charged lepton, and the second one to that of the neutrino, while in ε d αβ , the order is reversed.…”

Section: B Non-standard Interactionsmentioning

confidence: 99%

Erratum: two experiments for the price of one? The role of the second oscillation maximum in long baseline neutrino experiments

Huber,

Kopp

2011

J. High Energ. Phys.

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We investigate the quantitative impact that data from the second oscillation maximum has on the performance of wide band beam neutrino oscillation experiments. We present results for the physics sensitivities to standard three flavor oscillation, as well as results for the sensitivity to non-standard interactions. The quantitative study is performed using an experimental setup similar to the Fermilab to DUSEL Long Baseline Neutrino Experiment (LBNE). We find that, with the single exception of sensitivity to the mass hierarchy, the second maximum plays only a marginal role due to the experimental difficulties to obtain a statistically significant and sufficiently background-free event sample at low energies. This conclusion is valid for both waterČerenkov and liquid argon detectors. Moreover, we confirm that non-standard neutrino interactions are very hard to distinguish experimentally from standard three-flavor effects and can lead to a considerable loss of sensitivity to θ 13 , the mass hierarchy and CP violation. * pahuber@vt.edu † jkopp@fnal.gov 1 arXiv:1010.3706v3 [hep-ph] 9

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“…Sensitivity of NOvA to NSI had also been discussed in [45,46]. We used the GLoBES software to carry out the analysis.…”

Section: Jhep07(2014)064mentioning

confidence: 99%

Shedding light on LMA-dark solar neutrino solution by medium baseline reactor experiments: JUNO and RENO-50

Bakhti

Farzan

2014

J. High Energ. Phys.

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In the presence of Non-Standard neutral current Interactions (NSI) a new solution to solar neutrino anomaly with cos 2θ 12 < 0 appears. We investigate how this solution can be tested by upcoming intermediate baseline reactor experiments, JUNO and RENO-50. We point out a degeneracy between the two solutions when both hierarchy and the θ 12 octant are flipped. We then comment on how this degeneracy can be partially lifted by long baseline experiments sensitive to matter effects such as the NOvA experiment.

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Nonstandard neutrino interactions in reactor and superbeam experiments

Cited by 201 publications

References 61 publications

The discovery reach ofCPviolation in neutrino oscillation with non-standard interaction effects

The discovery reach ofCPviolation in neutrino oscillation with non-standard interaction effects

Erratum: two experiments for the price of one? The role of the second oscillation maximum in long baseline neutrino experiments

Shedding light on LMA-dark solar neutrino solution by medium baseline reactor experiments: JUNO and RENO-50

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