Oscillation enhanced search for new interactions with neutrinos

Ota, Toshihiko; Sato, Joe; Yamashita, Nao-aki

doi:10.1103/physrevd.65.093015

Cited by 93 publications

(129 citation statements)

References 101 publications

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“…For instance, flavor violating Non-Standard Interactions (NSIs) can modify neutrino propagation in matter [5][6][7][8][9][10]. NSIs could also affect the production and detection processes generating "wrong flavor" neutrinos [11][12][13]. Consider for instance an appearance experiment where a neutrino is produced in association with a muon, and a tau is detected at the detector.…”

Section: Introductionmentioning

confidence: 99%

Non-standard neutrino interactions at one loop

Bellazzini¹,

Grossman²,

Nachshon³

et al. 2011

J. High Energ. Phys.

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Neutrino oscillation experiments are known to be sensitive to Non-Standard Interactions (NSIs).We extend the NSI formalism to include one-loop effects. We discuss universal effects induced by corrections to the tree level W exchange, as well as non-universal effects that can arise from scalar charged current interactions. We show how the parameters that can be extracted from the experiments are obtained from various loop amplitudes, which include vertex corrections, wave function renormalizations, mass corrections as well as box diagrams. As an illustrative example, we discuss NSIs at one loop in the Minimal Supersymmetric Standard Model (MSSM) with generic lepton flavor violating sources in the soft sector. We argue that the size of one-loop NSIs can be large enough to be probed in future neutrino oscillation experiments.

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Section: Introductionmentioning

confidence: 99%

Non-standard neutrino interactions at one loop

Bellazzini¹,

Grossman²,

Nachshon³

et al. 2011

J. High Energ. Phys.

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“…In general, neutrino oscillations and NSIs in terrestrial neutrino experiments have been studied extensively in the literature, using the neutrino factory project [14][15][16][17][18][19][20][21] and other different neutrino facilities (like super-beams and β-beams) [22][23][24][25][26] to assess the impact of the NSI effects in neutrino physics.…”

Section: Introductionmentioning

confidence: 99%

Non-standard interactions using the OPERA experiment

et al. 2008

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We investigate the implications of non-standard interactions on neutrino oscillations in the OPERA experiment. In particular, we study the non-standard interaction parameter ε μτ . We show that the OPERA experiment has a unique opportunity to reduce the allowed region for this parameter compared with other experiments such as the MI-NOS experiment, mostly due to the higher neutrino energies in the CNGS beam compared to the NuMI beam. We find that OPERA is mainly sensitive to a combination of standard and non-standard parameters and that a resulting anti-resonance effect could suppress the expected number of events. Furthermore, we show that running OPERA for five years each with neutrinos and anti-neutrinos would help in resolving the degeneracy between the standard parameters and ε μτ . This scenario is significantly better than the scenario with a simple doubling of the statistics by running with neutrinos for ten years.

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“…The nLFV signal is robust against the adjustment of the standard oscillation parameters because of its characteristic energy dependence [9]. This plot indicates that the nLFV interaction with ǫ s µτ = O(10 −4 ) can be observed at a neutrino factory in this oscillation channel.…”

Section: Enhancement Mechanism In Nlfv Interaction Searchmentioning

confidence: 75%

“…In this numerical study, we take 10% uncertainty for the mixing angles and the 1 Here, we only consider the (V − A)(V − A) type nLFV interaction. −3 e i(π/2) at 90% CL in ν µ → ν τ channel [9]. The numbers in the figure are normalized by 10 21 muons × 100 kt detector.…”

Section: Enhancement Mechanism In Nlfv Interaction Searchmentioning

confidence: 99%

Lepton flavor violation in a long-baseline experiment

Ota¹

2004

AIP Conference Proceedings

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We evaluate the size of a coupling for a lepton flavor violating interaction with neutrinos (nLFV) in the minimal supersymmetric standard model with right-handed neutrinos (MSSMRN). It is expected that the nLFV interactions are detected in a long baseline neutrino oscillation experiment. We here deal with µ − → e −ν eντ in νµ → ντ channel at a neutrino factory. First, we show the numerical study on feasibility to observe such interaction and point out that we can search for them with some oscillation channels. Next, we make a numerical calculation for the size of the nLFV coupling in the framework of the MSSMRN. A long baseline experiment is sensitive not only to the lepton mixings in the standard model but also to new physics effect.

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Oscillation enhanced search for new interactions with neutrinos

Cited by 93 publications

References 101 publications

Non-standard neutrino interactions at one loop

Non-standard neutrino interactions at one loop

Non-standard interactions using the OPERA experiment

Lepton flavor violation in a long-baseline experiment

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