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I discuss the theoretical background and the status of neutrino oscillation parameters from the current worlds' global data sample and latest flux calculations. I give their allowed ranges, best fit values and discuss the small parameters…

High Energy Physics - Phenomenology · Physics 2009-09-17 J. W. F. Valle

I summarize the status of neutrino oscillations that follow from current data, including the status of the small parameters ratio of solar-over-atmospheric splitting and $\sin^2\theta_{13}$ characterizing the strength of CP violation in…

High Energy Physics - Phenomenology · Physics 2007-05-23 J. W. F. Valle

We present the results of a global analysis of the neutrino oscillation data available as of fall 2018 in the framework of three massive mixed neutrinos with the goal at determining the ranges of allowed values for the six relevant…

High Energy Physics - Phenomenology · Physics 2019-02-19 Ivan Esteban , M. C. Gonzalez-Garcia , Alvaro Hernandez-Cabezudo , Michele Maltoni , Thomas Schwetz

We perform a global analysis of neutrino oscillation data, including high-precision measurements of the neutrino mixing angle theta_13 at reactor experiments, which have confirmed previous indications in favor of theta_13>0. Recent data…

High Energy Physics - Phenomenology · Physics 2013-05-30 G. L. Fogli , E. Lisi , A. Marrone , D. Montanino , A. Palazzo , A. M. Rotunno

I summarize the status of three--neutrino oscillations that follow from combining the relevant world's data. The discussion includes the small parameters Delta_m-sol/Delta_m-atm and \sin^2\theta_{13}, which characterize the strength of CP…

High Energy Physics - Phenomenology · Physics 2016-09-06 J. W. F. Valle

We study in a quantitative way CP-violating effects in neutrino oscillation experiments in the light of current and future data. Different scenarios with three and four neutrinos are worked out in detail including matter effects in long…

High Energy Physics - Phenomenology · Physics 2009-10-31 K. Dick , M. Freund , M. Lindner , A. Romanino

We review the basic mechanisms of neutrino mass generation and the corresponding structure of the lepton mixing matrix. We summarize the status of three-neutrino oscillation parameters as determined from current observations, using…

High Energy Physics - Phenomenology · Physics 2009-11-13 Hiroshi Nunokawa , Stephen Parke , Jose W. F. Valle

Neutrino oscillations in matter provide a unique probe of new physics. Leveraging the advent of neutrino appearance data from NOvA and T2K in recent years, we investigate the presence of CP-violating neutrino non-standard interactions in…

High Energy Physics - Phenomenology · Physics 2021-02-05 Peter B. Denton , Julia Gehrlein , Rebekah Pestes

We present the Bayesian method for evaluating the evidence for a non-zero value of the leptonic mixing angle theta_13 and CP-violation in neutrino oscillation experiments. This is an application of the well-established method of Bayesian…

High Energy Physics - Phenomenology · Physics 2012-09-03 Johannes Bergstrom

Within the standard three-neutrino framework, the absolute neutrino masses and their ordering (either normal, NO, or inverted, IO) are currently unknown. However, the combination of current data coming from oscillation experiments,…

High Energy Physics - Phenomenology · Physics 2017-06-07 Francesco Capozzi , Eleonora Di Valentino , Eligio Lisi , Antonio Marrone , Alessandro Melchiorri , Antonio Palazzo

If neutrinos get mass via the seesaw mechanism the mixing matrix describing neutrino oscillations can be effectively non-unitary. We show that in this case the neutrino appearance probabilities involve a new CP phase, phi, associated to…

High Energy Physics - Phenomenology · Physics 2016-08-12 O. G. Miranda , M. Tortola , J. W. F. Valle

The CP violation effects in long baseline neutrino oscillations are studied in the framework of a four-neutrino model (three active neutrinos and one sterile neutrino). It is assumed that neutrino masses are devided into two nearly…

High Energy Physics - Phenomenology · Physics 2008-11-26 Anna Kalliomäki , Jukka Maalampi , Morimitsu Tanimoto

We perform a global Bayesian analysis of currently available neutrino data, putting data from oscillation experiments, neutrinoless double beta decay ($0\nu\beta\beta$), and precision cosmology on an equal footing. We evaluate the discovery…

High Energy Physics - Phenomenology · Physics 2021-08-05 Allen Caldwell , Manuel Ettengruber , Alexander Merle , Oliver Schulz , Maximilian Totzauer

We show simple methods how to separate pure CP violating effect from matter effect in long baseline neutrino oscillation experiments with three generations of neutrinos. We give compact formulae for neutrino oscillation probabilities…

High Energy Physics - Phenomenology · Physics 2014-11-17 Jiro Arafune , Masafumi Koike , Joe Sato

Flavour oscillations of sub-GeV atmospheric neutrinos and antineutrinos, traversing different distances inside the Earth, are a promising source of information on the leptonic CP phase $\delta$. In that energy range, the oscillations are…

High Energy Physics - Phenomenology · Physics 2020-12-02 Ara Ioannisian , Stefan Pokorski , Janusz Rosiek , Michal Ryczkowski

We develop an exact analytical formulation of neutrino oscillations in matter within the framework of the Standard Neutrino Model assuming 3 Dirac Neutrinos. Our Hamiltonian formulation, which includes CP violation, leads to expressions for…

High Energy Physics - Phenomenology · Physics 2016-06-14 Mikkel B. Johnson , Ernest M. Henley , Leonard S. Kisslinger

We present a Bayesian analysis of the combination of current neutrino oscillation, neutrinoless double beta decay and CMB observations. Our major goal is to carefully investigate the possibility to single out one neutrino mass ordering,…

High Energy Physics - Phenomenology · Physics 2018-03-21 S. Gariazzo , M. Archidiacono , P. F. de Salas , O. Mena , C. A. Ternes , M. Tórtola

The next generation of long baseline neutrino oscillation experiments will aim at determining the unknown mixing angle $\theta_{13}$, the type of neutrino mass hierarchy and CP-violation. We discuss the separation of these properties by…

High Energy Physics - Phenomenology · Physics 2009-05-19 Jose Bernabeu , Catalina Espinoza

I summarize the present status of global analyses of neutrino oscillations, including the most recent KamLAND and K2K data, as well as the latest solar and atmospheric neutrino fluxes. I give the allowed ranges of the three--flavour…

High Energy Physics - Phenomenology · Physics 2009-09-17 J. W. F. Valle

We study neutrino oscillation within the framework of three generations in matter. We propose a simple method to approximate the coefficients A, B and C which do not depend on the CP phase \delta in the oscillation probability P(\nu_e \to…

High Energy Physics - Phenomenology · Physics 2014-11-17 Akira Takamura , Keiichi Kimura , Hidekazu Yokomakura
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