General bounds on non-standard neutrino interactions

Biggio, Carla; Blennow, Mattias; Fernández‐Martínez, E.

doi:10.1088/1126-6708/2009/08/090

Cited by 256 publications

(372 citation statements)

References 64 publications

Supporting

Mentioning

355

Contrasting

Unclassified

Order By: Relevance

“…As these NSIs modify the interactions with matter from the Standard Model interactions the effective mass matrix for the neutrinos are changed and as such there will be change in the oscillation probability of different flavor of neutrinos. Although NSIs could be present at the source of neutrinos, during the propagation of neutrinos and also during detection of neutrinos [52] but as those effects are expected to be smaller at the source and detector due to their stringent constraints [21,53], we consider the NSI effect during the propagation of neutrinos only.…”

Section: Nsi and Its Effect On Neutrino Oscillation Probabilitiesmentioning

confidence: 99%

See 1 more Smart Citation

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

Rahman

Dasgupta

Adhikari

2015

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

View full text Add to dashboard Cite

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

show abstract

Section: Nsi and Its Effect On Neutrino Oscillation Probabilitiesmentioning

confidence: 99%

“…Bounds coming from loop effect have been used for model dependent bounds. However, model independent bounds are less stringent and could be larger than the model dependent bounds by several orders and have been discussed in [21,53]. Considering recent results from experiments in IceCube-79 and…”

Section: Nsi and Its Effect On Neutrino Oscillation Probabilitiesmentioning

confidence: 99%

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

Rahman

Dasgupta

Adhikari

2015

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

View full text Add to dashboard Cite

show abstract

“…If the running time is doubled, no significant improvement is gained, indicating that the limiting factor is not statistics. These bounds are a significant improvement upon the current bounds [161,162], but not as strong as those which the Neutrino Factory can obtain.…”

Section: Non-standard Interactions In a Low-energy Neutrino Factorymentioning

confidence: 75%

“…Model-independent experimental constraints on the ε s,d,m αβ range from 10 −4 to O(1) [16,[159][160][161][162], while model-dependent limits are often much tighter [163,164] since, in concrete models, NSI in the neutrino sector are usually accompanied by non-standard effects in the charged-lepton sector that are constrained, for example, by rare decay searches or measurements of the weak mixing angle.…”

Section: Effective Theory Of New Physics In the Neutrino Sectormentioning

confidence: 99%