Tests of<i>CPT</i>invariance at neutrino factories

Bilenky, S.M.; Freund, M.; Lindner, M.; Ohlsson, Tommy; Winter, Walter

doi:10.1103/physrevd.65.073024

Cited by 40 publications

(32 citation statements)

References 47 publications

(32 reference statements)

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“…Neutrinos might further have unusual properties and might, for example, violate CPT. In that case neutrinos and anti-neutrinos could have different properties and LBL experiments can give very interesting limits on this possibility [56], but we will assume in this study that CPT is preserved.…”

Section: The Oscillation Frameworkmentioning

confidence: 99%

The Physics Potential of Future Long-Baseline Neutrino Oscillation Experiments

Lindner¹

2003

Springer Tracts in Modern Physics

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We discuss in detail different future long baseline neutrino oscillation setups and we show the remarkable potential for very precise measurements of mass splittings and mixing angles. Furthermore it will be possible to make precise tests of coherent forward scattering and MSW effects, which allow to determine the sign of ∆m 2 . Finally strong limits or measurements of leptonic CP violation will be possible, which is very interesting since it is most likely connected to the baryon asymmtery of the universe.

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Section: The Oscillation Frameworkmentioning

confidence: 99%

The Physics Potential of Future Long-Baseline Neutrino Oscillation Experiments

Lindner¹

2003

Springer Tracts in Modern Physics

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“…The idea was first suggested by Murayama and Yanagida [14] in the form of different masses for neutrino and antineutrino, based on phenomenological considerations. This proposal was formalized as a CP T -violating quantum field theory with a mass difference between neutrino and antineutrino in [15] (see also [16] 2 CP T -violating free field model A free field model in which particle and antiparticle have different masses was proposed in [15].…”

Section: Introductionmentioning

confidence: 99%

CPT violation does not lead to violation of Lorentz invariance and vice versa

et al. 2011

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We present a class of interacting nonlocal quantum field theories, in which the CP T invariance is violated while the Lorentz invariance is present. This result rules out a previous claim in the literature that the CP T violation implies the violation of Lorentz invariance. Furthermore, there exists the reciprocal of this theorem, namely that the violation of Lorentz invariance does not lead to the CP T violation, provided that the residual symmetry of Lorentz invariance admits the proper representation theory for the particles. The latter occurs in the case of quantum field theories on a noncommutative space-time, which in place of the broken Lorentz symmetry possesses the twisted Poincaré invariance. With such a CP T -violating interaction and the addition of a C-violating (e.g., electroweak) interaction, the quantum corrections due to the combined interactions could lead to different properties for the particle and antiparticle, including their masses.

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“…However, in recent years studies of extensions of the Standard Model have shown that it is possible to have violations of the Lorentz and CPT symmetries (see Refs. [40][41][42]) and several phenomenological studies of neutrino oscillations with different masses and mixing for neutrinos and antineutrinos appeared in the literature [43][44][45][46][47][48][49][50][51][52][53][54]. We will consider this scenario in the simplest case of effective two-neutrino mixing with…”

Section: Introductionmentioning

confidence: 99%

Short-baseline electron neutrino disappearance at a neutrino factory

2009

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We discuss short-baseline and very-short-baseline v(e) disappearance at a neutrino factory. We take into account geometric effects, such as from averaging over the decay straights, and the uncertainties of the cross sections. We follow an approach similar to reactor experiments with two detectors: we use two sets of near detectors at different distances to cancel systematics. We demonstrate that such a setup is very robust with respect to systematics, and can have excellent sensitivities to the effective mixing angle and squared-mass splitting. In addition, we allow for CPT invariance violation, which can be tested (depending on the parameters) up to a 0.1% level

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Tests ofCPTinvariance at neutrino factories

Cited by 40 publications

References 47 publications

The Physics Potential of Future Long-Baseline Neutrino Oscillation Experiments

The Physics Potential of Future Long-Baseline Neutrino Oscillation Experiments

CPT violation does not lead to violation of Lorentz invariance and vice versa

Short-baseline electron neutrino disappearance at a neutrino factory

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