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Rapid progress has been made during recent years in the understanding of the flavour oscillations that occur as neutrinos traverse through supernova. The previous paradigm has given way and it is now clear that the neutrino signals we shall…

High Energy Astrophysical Phenomena · Physics 2011-07-19 Huaiyu Duan , James P Kneller

Besides the opportunity for discovering new neutrino physics, solar neutrino measurements provide a sensitive probe of the solar interior, and thus a rigorous test of solar model predictions. We present model independent determinations of…

High Energy Physics - Phenomenology · Physics 2016-09-01 Naoya Hata , Paul Langacker

(Abridged) In order to decode the neutrino burst signal from a Galactic core-collapse supernova and reveal the complicated inner workings of the explosion we need a thorough understanding of the neutrino flavor evolution from the…

High Energy Astrophysical Phenomena · Physics 2013-08-09 Tina Lund , James P. Kneller

Flavor-dependent neutrino emission is critical to the evolution of a supernova and its neutrino signal. In the dense anisotropic interior of the star, neutrino-neutrino forward-scattering can lead to fast collective neutrino oscillations,…

High Energy Physics - Phenomenology · Physics 2021-02-22 Soumya Bhattacharyya , Basudeb Dasgupta

We investigate resonant spin-flavor (RSF) conversions of supernova neutrinos which are induced by the interaction of neutrino magnetic moment and supernova magnetic fields. From the formulation which includes all three-flavor neutrinos and…

High Energy Physics - Phenomenology · Physics 2016-09-06 Shin'ichiro Ando , Katsuhiko Sato

The Standard Model (SM) of particle physics effectively explains most observed phenomena, though some anomalies, especially in the neutrino sector, suggest the need for extensions. In this Letter, we perform the first global fit of elastic…

High Energy Physics - Phenomenology · Physics 2025-12-05 Mattia Atzori Corona , Matteo Cadeddu , Nicola Cargioli , Francesca Dordei , Carlo Giunti , Christoph A. Ternes

In the standard model of core-collapse supernova (CCSN), all neutrinos are assumed to be in pure flavor eigenstates in CCSN cores, but the assumption becomes invalid if neutrino distributions are unstable to flavor conversions. In this…

High Energy Astrophysical Phenomena · Physics 2024-07-31 Masamichi Zaizen , Sherwood Richers , Hiroki Nagakura , Hideyuki Suzuki , Chinami Kato

We consider a simplifed model for self-induced flavor conversions of a dense neutrino gas in two dimensions, showing new solutions that spontaneously break the spatial symmetries of the initial conditions. As a result of the symmetry…

High Energy Physics - Phenomenology · Physics 2015-07-29 Alessandro Mirizzi , Gianpiero Mangano , Ninetta Saviano

In this paper, we derive simple and general perturbative formulas for the flavor flux ratios $R_{\alpha\beta}=\phi_{\nu_\alpha}/\phi_{\nu_\beta}$ that could be measured at neutrino telescopes. We discuss in detail the role of the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Davide Meloni , Tommy Ohlsson

When the neutrino density is very high, as in core-collapse supernovae, neutrino-neutrino interactions are not negligible and can appreciably affect the evolution of flavour. The physics of these phenomena is briefly highlighted, and their…

High Energy Physics - Phenomenology · Physics 2009-05-18 Irene Tamborra

Convection that develops behind the shock front during the first second of a core-collapse supernova explosion is believed to play a crucial role in the explosion mechanism. We demonstrate that the resulting turbulent density fluctuations…

Astrophysics · Physics 2007-05-23 Alexander Friedland , Andrei Gruzinov

Neutrinos in a core-collapse supernova undergo coherent flavor transformations in their own background. We explore this phenomenon during the cooling stage of the explosion. Our three-flavor calculations reveal qualitatively new effects…

High Energy Physics - Phenomenology · Physics 2010-05-25 Alexander Friedland

We point out that the recent data from the Sudbury Neutrino Observatory, together with other relevant measurements from solar and reactor neutrino experiments, convincingly show that the flavor transitions of solar neutrinos are affected by…

High Energy Physics - Phenomenology · Physics 2009-10-07 G. L. Fogli , E. Lisi , A. Marrone , A Palazzo

We recently studied neutrinos flavor oscillations in vacuum within conformal coupling models. In this paper, we extend that analysis by investigating neutrino flavor oscillations inside matter within a general conformal coupling scenario.…

High Energy Physics - Phenomenology · Physics 2023-05-15 Fayçal Hammad , Parvaneh Sadeghi , Nicolas Fleury

In this paper, we explore the effects of neutrino flavor oscillations on supernova nucleosynthesis and on the neutrino signals. Our study is based on detailed information about the neutrino spectra and their time evolution from a…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Meng-Ru Wu , Yong-Zhong Qian , Gabriel Martinez-Pinedo , Tobias Fischer , Lutz Huther

The measurement of the flavor composition of the neutrino fluxes from astrophysical sources has been proposed as a method to study not only the nature of their emission mechanisms, but also the neutrino fundamental properties. It is however…

Astrophysics · Physics 2008-12-18 Paolo Lipari , Maurizio Lusignoli , Davide Meloni

We analyze the prospects for studying scalar non-standard interactions (SNSI) using the neutrino burst from a Galactic supernova. SNSI modify the resonant flavor conversion and, correspondingly, the neutronization burst signal, and may be…

High Energy Physics - Phenomenology · Physics 2025-08-25 Bhaskar Dutta , Aparajitha Karthikeyan , Nityasa Mishra , Yago Porto , Louis E. Strigari

New heavy neutral leptons lead to non-unitary effects in models for neutrino masses. Such effects could represent a sign of new physics beyond the Standard Model, leading to observable deviations in neutrino oscillation experiments, lepton…

High Energy Physics - Phenomenology · Physics 2024-08-26 Jesús Miguel Celestino-Ramírez , G. Hernández-Tomé , O. G. Miranda , Eduardo Peinado

The flavor evolution of neutrinos emitted by a supernova (SN) core is strongly affected by the refractive effects associated with the neutrino-neutrino interactions in the deepest stellar regions. Till now, all numerical studies have…

High Energy Physics - Phenomenology · Physics 2015-06-16 Alessandro Mirizzi

Neutrino self-interactions are known to lead to non-linear collective flavor oscillations in a core-collapse supernova. We point out new possible effects of non-standard self-interactions (NSSI) of neutrinos on flavor conversions in a…

High Energy Physics - Phenomenology · Physics 2017-06-05 Anirban Das , Amol Dighe , Manibrata Sen