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Related papers: Optimizing T-violating Effects for Neutrino Oscill…

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We propose a new method for measuring CP violation in neutrino oscillation experiments. The idea is to isolate the term due to the CP-violating phase out of the oscillation probability by taking difference between yields of two (or three)…

High Energy Physics - Phenomenology · Physics 2011-02-24 Hisakazu Minakata , Hiroshi Nunokawa

We investigate CP-violation effect in the long-baseline neutrino oscillation in the four-neutrino model with mass scheme of the two nearly degenerate pairs separated with the order of 1 eV, by using the data from the solar neutrino deficit,…

High Energy Physics - Phenomenology · Physics 2009-10-31 Toshihiko Hattori , Tsutom Hasuike , Seiichi Wakaizumi

Existing experimental data for neutrino oscillations are consistent with Lorentz-violating massless neutrinos. This talk summarizes some aspects of neutrino oscillations from the perspective of Lorentz and CPT violation in effective quantum…

High Energy Physics - Phenomenology · Physics 2007-05-23 Alan Kostelecky

Using $\Delta\chi^2$ which is defined by the difference of the number of events with the CP phase $\delta$ and the hypothetical one with $\delta=0$, we discuss correlations of errors of the CP phase and other oscillation parameters as well…

High Energy Physics - Phenomenology · Physics 2014-11-17 John Pinney , Osamu Yasuda

We propose a method to establish time reversal symmetry violation at future neutrino oscillation experiments in a largely model-independent way. We introduce a general parametrization of flavour transition probabilities which holds under…

High Energy Physics - Phenomenology · Physics 2022-03-14 Thomas Schwetz , Alejandro Segarra

Neutrino oscillation experiments in the past decades have greatly improved our knowledge on neutrinos by measuring the fundamental neutrino parameters. The ongoing and upcoming neutrino oscillation experiments are intended to pin down the…

High Energy Physics - Phenomenology · Physics 2013-07-16 Tommy Ohlsson , He Zhang , Shun Zhou

We propose the indirect search for the CP violating phase in the long baseline $\n_\m \Ar\n_e$ oscillation experiment, in which two scenarios of the neutrino mass hierarchy are discussed in the three family model. The CP violatig phase…

High Energy Physics - Phenomenology · Physics 2014-11-17 Morimitsu Tanimoto

Using the Einstein-Cartan-Dirac theory, we study the effect of torsion on neutrino oscillation. We see that torsion cannot induce neutrino oscillation, but affects it whenever oscillation exists for other reasons. We show that the torsion…

General Relativity and Quantum Cosmology · Physics 2009-10-31 M. alimohammadi , A. Shariati

An asymmetry between the probabilities P(\nu_{\mu}\to\nu_{e}) and P(\bar{\nu_{\mu}}\to\bar{\nu_{e}}) would be direct indication of CP violation at the fundamental level. Planck scale effects on neutrino mixing, we have derived the mixing…

High Energy Physics - Phenomenology · Physics 2008-06-03 Bipin Singh Koranga

We study the impact of the positivity of the measure of CP violation in neutrino oscillations on the values of |V_e3| and |V_mu1|. We use the available information on the solar and atmospheric mixing parameters |V_e2| and |V_mu3| provided…

High Energy Physics - Phenomenology · Physics 2007-05-23 G. Couture , C. Hamzaoui , A. M. Lussier

In this paper we focus on the Earth matter effects for the solar parameter determination by a medium baseline reactor experiment such as JUNO. We derive perturbative expansions for the mixing angles $\theta_{12}$ and $\theta_{13}$ as well…

High Energy Physics - Phenomenology · Physics 2020-03-12 Amir N. Khan , Hiroshi Nunokawa , Stephen J. Parke

The matter effects for solar neutrino oscillations are studied in a general scheme with an arbitrary number of sterile neutrinos, without any constraint on the mixing, assuming only a realistic hierarchy of neutrino squared-mass differences…

High Energy Physics - Phenomenology · Physics 2009-12-31 C. Giunti , Y. F. Li

This work explores the possibility of resorting to neutrino phenomenology to detect evidence of new physics, caused by the residual signals of the supposed quantum structure of spacetime. In particular, this work investigates the effects on…

High Energy Physics - Phenomenology · Physics 2021-10-19 Marco Danilo Claudio Torri

Neutrino oscillations are now a well-stablished and deeply studied phenomena. Their mixing parameters, except for the CP phase, are measured with good accuracy. The three-neutrino oscillation picture in matter is currently of great interest…

High Energy Physics - Phenomenology · Physics 2016-03-02 L. J. Flores , O. G. Miranda

Neutrino oscillations in matter can exhibit a specific resonance enhancement -- parametric resonance, which is different from the MSW resonance. Recently it has been shown that the oscillations of atmospheric and solar neutrinos inside the…

High Energy Physics - Phenomenology · Physics 2017-08-02 E. Kh. Akhmedov

Up to now, future neutrino beam experiments have been designed and optimized in order to look for CP violation, \theta_{13} and the mass hierarchy under the conservative assumption that \theta_{13} is very small. However, the recent results…

High Energy Physics - Phenomenology · Physics 2015-05-30 Pilar Coloma , Enrique Fernandez-Martinez

We present a theory of neutrino oscillations in a dense medium which goes beyond the effective matter potential used in the description of the MSW effect. We show how the purity of the neutrino state is degraded by neutrino interactions…

High Energy Physics - Phenomenology · Physics 2021-07-20 Antonio Capolupo , Salvatore Marco Giampaolo , Aniello Quaranta

We define a difference $D_{\rm CP}$ of the neutrino oscillation probability differences with matter effect for the CP-conjugate channels, divided by neutrino beam energy, taken between the two baselines $L = L_1$ and $L =L_2$ with $L_1/E_1…

High Energy Physics - Phenomenology · Physics 2007-05-23 Chise Sakaguchi , Toshihiko Hattori , Seiichi Wakaizumi

Atmospheric neutrinos at low energies, $E \lsim 500$ MeV, is known to be a rich source of information of lepton mixing parameters. We formulate a simple perturbative framework to elucidate the characteristic features of neutrino oscillation…

High Energy Physics - Phenomenology · Physics 2019-12-06 Ivan Martinez-Soler , Hisakazu Minakata

Neutrino oscillation experiments under neutrino pair beam from circulating excited heavy ions are studied. It is found that detection of double weak events has a good sensitivity to measure CP violating parameter and distinguish mass…

High Energy Physics - Phenomenology · Physics 2015-12-23 M. Yoshimura , N. Sasao