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A novel method to look for neutrino oscillations is proposed based on the elastic scattering process $\bar{\nu}_{i} e^{-}\rightarrow \bar{\nu}_{i} e^{-}$, taking advantage of the dynamical zero present in the differential cross section for…

High Energy Physics - Phenomenology · Physics 2016-08-14 J. Segura , J. Bernabéu , F. J. Botella , J. A. Peñarrocha

The evolution equation for active and sterile neutrinos propagating in general anisotropic or polarized background environment is found and solved for a special case when heavy neutrinos do not decouple, resulting in non-unitary mixing…

High Energy Physics - Phenomenology · Physics 2009-11-07 B. Bekman , J. Gluza , J. Holeczek , J. Syska , M. Zralek

Neutrino oscillations are studied employing sources of low energy monoenergetic neutrinos following electron capture by the nucleus and measuring electron recoils. Since the neutrino energy is very low the oscillation length appearing in…

High Energy Physics - Phenomenology · Physics 2011-01-27 J. D. Vergados , Y. Giomataris , Yu. N. Novikov

Parametric enhancement of the appearance probability of the neutrino oscillation under the inhomogeneous matter is studied. Fourier expansion of the matter density profile leads to a simple resonance condition and manifests that each…

High Energy Physics - Phenomenology · Physics 2009-10-16 Masafumi Koike , Toshihiko Ota , Masako Saito , Joe Sato

We describe nuFATE Neutrino Fast Attenuation Through Earth, a very rapid method of accurately computing the attenuation of high-energy neutrinos during their passage through Earth to detectors such as IceCube, ANTARES or KM3Net, including…

High Energy Physics - Phenomenology · Physics 2019-01-17 Aaron C. Vincent , Carlos A. Argüelles , Ali Kheirandish

In this paper, we investigate the effects of random fluctuations of the Earth matter density for long baselines on the neutrino oscillation transition probabilities. We especially identify relevant parameters characterizing the matter…

High Energy Physics - Phenomenology · Physics 2009-11-07 Bjorn Jacobsson , Tommy Ohlsson , Hakan Snellman , Walter Winter

We present simple analytical approximations to matter-effect corrected effective neutrino mixing-angles and effective mass-squared-differences. The expressions clarify the dependence of oscillation probabilities in matter to the mixing…

High Energy Physics - Phenomenology · Physics 2007-05-23 Minako Honda , Yee Kao , Naotoshi Okamura , Tatsu Takeuchi

We examine neutrino evolution in astrophysical environments where the neutrino flux is very large, including core-collapse supernovae and neutron star mergers. In these environments, the neutrino-neutrino and neutrino-antineutrino…

High Energy Physics - Phenomenology · Physics 2026-03-13 Joseph Carlson , Alessandro Roggero , Duff Neill

We describe the effects of neutrino propagation in the matter of the Earth relevant for experiments with atmospheric and accelerator neutrinos and aimed at the determination of the neutrino mass hierarchy and CP-violation. These include (i)…

High Energy Physics - Phenomenology · Physics 2013-06-13 Mattias Blennow , Alexei Yu. Smirnov

Neutrino gases are expected to form in high density astrophysical environments, and accurately modeling their flavor evolution is critical to understanding such environments. In this work we study a simplified model of such a dense neutrino…

High Energy Physics - Phenomenology · Physics 2024-01-09 Joshua D. Martin , Duff Neill , A. Roggero , Huaiyu Duan , J. Carlson

Oscillations in the electron-capture (EC) decay rate observed in storage-ring experiments are reconsidered in connection with the neutrino mass difference. Taking into account that - according to Relativity Theory - time is slowed down in…

High Energy Physics - Phenomenology · Physics 2015-01-21 Walter Potzel

Three schemes of neutrino mixings (oscillations) are proposed. The problems of origin of angle mixings, with the law of energy-momentum conservation and disintegration of neutrino as wave pocket are solved. These two schemes belong to mass…

High Energy Physics - Phenomenology · Physics 2009-11-10 Kh. M. Beshtoev

In the standard approaches to neutrino transport in the simulation of core-collapse supernovae, one will often start from the classical Boltzmann equation for the neutrino's spatial, temporal, and spectral evolution. For each neutrino…

High Energy Physics - Phenomenology · Physics 2009-04-02 P. Strack , A. Burrows

We investigate the effect of matter density fluctuations on supernova collective neutrino flavor oscillations. In particular, we use full multi-angle, 3-flavor, self-consistent simulations of the evolution of the neutrino flavor field in…

High Energy Astrophysical Phenomena · Physics 2013-05-29 John F. Cherry , Meng-Ru Wu , Joe Carlson , Huaiyu Duan , George M. Fuller , Yong-Zhong Qian

Oscillation experiments show that neutrinos have masses. They however only determine the neutrinop mass differences. Information on the absolute masses can be obtained by studying the kinematics in weak decays, or by searching for…

High Energy Physics - Experiment · Physics 2007-05-23 Jean-Luc Vuilleumier

We discuss the transition and survival probabilities in $3+1$ neutrino flavor mixing scenario in presence of matter effects. We adopt the well-known OMSD(One Mass Scale Dominance) approximation to carry out our analysis. After that we…

High Energy Physics - Phenomenology · Physics 2022-07-08 Kiran Sharma , Sudhanwa Patra

Providing an accurate modeling of neutrino physics in dense astrophysical environments such as binary neutron star mergers presents a challenge for hydrodynamic simulations. Nevertheless, understanding how flavor transformation can occur…

High Energy Astrophysical Phenomena · Physics 2025-01-15 Julien Froustey , Sherwood Richers , Evan Grohs , Samuel Flynn , Francois Foucart , James P. Kneller , Gail C. McLaughlin

New methods are proposed with the goal to determine absolute neutrino masses from the simultaneous observation of the bursts of neutrinos and gravitational waves emitted during a stellar collapse. It is shown that the neutronization…

High Energy Physics - Phenomenology · Physics 2009-11-07 N. Arnaud , M. Barsuglia , M. A. Bizouard , F. Cavalier , M. Davier , P. Hello , T. Pradier

It has been shown that neutrino masses can be determined under the particle ansatz. In this paper, we give the general formulas of neutrino masses related to the neutrino oscillation parameters which show that there is a mass hierarchy…

High Energy Physics - Phenomenology · Physics 2018-03-01 Wen-Jie Wu , Xiang Zhou

We analytically derive transition probabilities for four-neutrino oscillations in matter. The time evolution operator giving the neutrino oscillations is expressed by the finite sum of terms up to the third power of the Hamiltonian in a…

High Energy Physics - Phenomenology · Physics 2009-11-07 Yuki Kamo , Satoshi Yajima , Yoji Higasida , Shin-Ichiro Kubota , Shoshi Tokuo , Jun-Ichi Ichihara
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