Non-standard neutrino interactions in the mu–tau sector

Mocioiu, I.; Wright, Warren P.

doi:10.1016/j.nuclphysb.2015.02.016

Cited by 32 publications

(38 citation statements)

References 47 publications

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“…Future probes of NSI include long-baseline experiments such as NOνA and DUNE [45], as well as atmospheric data from IceCube DeepCore [46], and solar neutrino data from DM direct detection experiments [102].…”

Section: Discussionmentioning

confidence: 99%

“…Non-standard neutrino interactions (NSIs) were first introduced in 1977 [35] and continue to be of wide phenomenological interest [11,[36][37][38][39][40][41][42][43][44][45][46][47][48] (see [36,49] for reviews).…”

Section: Introductionmentioning

confidence: 99%

“…They are constrained by solar [37,[50][51][52][53][54][55][56], atmospheric [38,39,46,[57][58][59][60], long-baseline [41-43, 45, 48, 60, 61], collider [11,44,47,62], cosmological [63], and neutrino scattering data [36,40,49].…”

Section: Introductionmentioning

confidence: 99%

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New orνmissing energy: Discriminating dark matter from neutrino interactions at the LHC

2016

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Missing energy signals such as monojets are a possible signature of Dark Matter (DM) at colliders. However, neutrino interactions beyond the Standard Model may also produce missing energy signals. In order to conclude that new "missing particles" are observed the hypothesis of BSM neutrino interactions must be rejected. In this paper, we first derive new limits on these Non-Standard neutrino Interactions (NSIs) from LHC monojet data. For heavy NSI mediators, these limits are much stronger than those coming from traditional low-energy ν scattering or ν oscillation experiments for some flavor structures. Monojet data alone can be used to infer the mass of the "missing particle" from the shape of the missing energy distribution. In particular, 13 TeV LHC data will have sensitivity to DM masses greater than ∼ 1 TeV. In addition to the monojet channel, NSI can be probed in multi-lepton searches which we find to yield stronger limits at heavy mediator masses. The sensitivity offered by these multi-lepton channels provide a method to reject or confirm the DM hypothesis in missing energy searches.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New orνmissing energy: Discriminating dark matter from neutrino interactions at the LHC

2016

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“…The muon neutrino survival probability P µµ is affected most by the parameters | µτ | and | τ τ − µµ |, while the transition probability P eµ depends on | eµ | and | µτ |. 4 This dependence can be used to discover NSI parameters using neutrino oscillation data or constrain them.…”

Section: Jhep12(2015)126mentioning

confidence: 99%

“…(2.3), since outside these ranges the χ 2 corresponding to the ICAL data is already large. 4 In fact, note that in the three-flavor neutrino oscillation probability Pµµ the actual parameters are | µτ |, | µµ|, and | τ τ | and appear independently (see eq. (35) in ref.…”

Section: Jhep12(2015)126mentioning

confidence: 99%

Neutrino physics with non-standard interactions at INO

Choubey

Ghosh

Ohlsson

et al. 2015

J. High Energ. Phys.

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Non-standard neutrino interactions (NSI) involved in neutrino propagation inside Earth matter could potentially alter atmospheric neutrino fluxes. In this work, we look at the impact of these NSI on the signal at the ICAL detector to be built at the India-based Neutrino Observatory (INO). We show how the sensitivity to the neutrino mass hierarchy of ICAL changes in the presence of NSI. The mass hierarchy sensitivity is shown to be rather sensitive to the NSI parameters eµ and eτ , while the dependence on µτ and τ τ is seen to be very mild, once the χ 2 is marginalised over oscillation and NSI parameters. If the NSI are large enough, the event spectrum at ICAL is expected to be altered and this can be used to discover new physics. We calculate the lower limit on NSI parameters above which ICAL could discover NSI at a given C.L. from 10 years of data. If NSI were too small, the null signal at ICAL can constrain the NSI parameters. We give upper limits on the NSI parameters at any given C.L. that one is expected to put from 10 years of running of ICAL. Finally, we give C.L. contours in the NSI parameter space that is expected to be still allowed from 10 years of running of the experiment.

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Non-standard interactions with high-energy atmospheric neutrinos at IceCube

Salvadó

Mena

Palomares‐Ruiz

et al. 2017

J. High Energ. Phys.

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Non-standard interactions in the propagation of neutrinos in matter can lead to significant deviations from expectations within the standard neutrino oscillation framework and atmospheric neutrino detectors have been considered to set constraints. However, most previous works have focused on relatively low-energy atmospheric neutrino data. Here, we consider the one-year high-energy through-going muon data in IceCube, which has been already used to search for light sterile neutrinos, to constrain new interactions in the µτ -sector. In our analysis we include several systematic uncertainties on both, the atmospheric neutrino flux and on the detector properties, which are accounted for via nuisance parameters. After considering different primary cosmic-ray spectra and hadronic interaction models, we improve over previous analysis by using the latest data and showing that systematics currently affect very little the bound on the off-diagonal ε µτ , with the 90% credible interval given by −6.0 × 10 −3 < ε µτ < 5.4 × 10 −3 , comparable to previous results. In addition, we also estimate the expected sensitivity after 10 years of collected data in IceCube and study the precision at which non-standard parameters could be determined for the case of ε µτ near its current bound.

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Non-standard neutrino interactions in the mu–tau sector

Cited by 32 publications

References 47 publications

New orνmissing energy: Discriminating dark matter from neutrino interactions at the LHC

New orνmissing energy: Discriminating dark matter from neutrino interactions at the LHC

Neutrino physics with non-standard interactions at INO

Non-standard interactions with high-energy atmospheric neutrinos at IceCube

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