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Title: Nonlinear dirac equations with applications to neutrino oscillations
Authors: Ng, W.K. 
Keywords: Lorentz violation
Neutrino oscillations
Nonlinear Dirac equations
Quantum nonlinearity
Issue Date: 30-Jul-2009
Citation: Ng, W.K. (2009-07-30). Nonlinear dirac equations with applications to neutrino oscillations. International Journal of Modern Physics A 24 (18-19) : 3476-3482. ScholarBank@NUS Repository.
Abstract: We first review a method to generate nonlinear Dirac equations. The method demands the nonlinear extensions preserve several physical properties like locality, Hermiticity, Poincaré invariance and separability. The last constraint results in nonlinear extensions of non-polynomial type. A class of nonlinear extensions that simultaneously violate Lorentz invariance is also constructed. We then review, using the classes of nonlinear extensions with or without violation of Lorentz symmetry, the sub-leading modifications to the neutrino oscillation probabilities in the ν1-ντ sector. The parameters in our models are bounded using the current experimental data. These are then used to estimate corrections to the oscillation probabilities and the corresponding energies at which the corrections will be sizeable. Thus one may test quantum nonlinearities in future higher energy experiments. © 2009 World Scientific Publishing Company.
Source Title: International Journal of Modern Physics A
ISSN: 0217751X
Appears in Collections:Staff Publications

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