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In dense environments, standard and non-standard neutrino interactions with the background particles trigger a variety of flavor mechanisms, which can impact r-process nucleosynthetic abundances. Future observations of a(n) (extra)galactic…

High Energy Physics - Phenomenology · Physics 2021-11-17 Maria Cristina Volpe

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

In astrophysical environments with intense neutrino fluxes, neutrino-neutrino forward scattering contributes both diagonal and off-diagonal potentials to the flavor-basis Hamiltonian that governs neutrino flavor evolution. We examine a…

Astrophysics · Physics 2008-11-26 George M. Fuller , Yong-Zhong Qian

We present the first calculations with three flavors of collective and shock wave effects for neutrino propagation in core-collapse supernovae using hydroynamical density profiles and the S matrix formalism. We explore the interplay between…

High Energy Physics - Phenomenology · Physics 2010-04-15 J. Gava , J. Kneller , C. Volpe , G. C. McLaughlin

We investigate the neutrino flavor change effects due to neutrino self-interaction, shock wave propagation as well as matter effect on the neutrino-process of the core-collapsing supernova (CCSN). For the hydrodynamics, we use two models: a…

We perform three-dimensional supernova simulations with a phenomenological treatment of neutrino flavor conversions. We show that the explosion energy can increase to as high as ~10^51 erg depending on the critical density for the onset of…

High Energy Astrophysical Phenomena · Physics 2025-03-05 Kanji Mori , Tomoya Takiwaki , Kei Kotake , Shunsaku Horiuchi

We discuss a new kind of astrophysical transport problem: the coherent evolution of neutrino flavor in core collapse supernovae. Solution of this problem requires a numerical approach which can simulate accurately the quantum mechanical…

Astrophysics · Physics 2009-06-09 Huaiyu Duan , George M. Fuller , J. Carlson

The formalism of flavor conversion of supernova neutrinos is generalized to include possible differences in the fluxes of the muon and tau neutrinos produced in the star. In this case the radiatively induced difference of the nu_mu and…

High Energy Physics - Phenomenology · Physics 2008-11-26 E. Kh. Akhmedov , C. Lunardini , A. Yu. Smirnov

Neutrinos emitted from a supernova may undergo flavor conversions almost immediately above the core, with possible consequences for supernova dynamics and nucleosynthesis. However, the precise conditions for such fast conversions can be…

High Energy Physics - Phenomenology · Physics 2018-11-07 Basudeb Dasgupta , Alessandro Mirizzi , Manibrata Sen

Neutrinos streaming from a supernova (SN) core occasionally scatter in the envelope, producing a small "neutrino halo" with a much broader angle distribution than the primary flux originating directly from the core. Cherry et al. (2012)…

High Energy Physics - Phenomenology · Physics 2012-06-21 Srdjan Sarikas , Irene Tamborra , Georg Raffelt , Lorenz Hüdepohl , Hans-Thomas Janka

We examine the flavor evolution of neutrinos emitted from the disk-like remnant (hereafter called \lq\lq neutrino disk\rq\rq) of a binary neutron star (BNS) merger. We specifically follow the neutrinos emitted from the center of the disk,…

High Energy Astrophysical Phenomena · Physics 2017-08-08 James Y. Tian , Amol V. Patwardhan , George M. Fuller

We calculate the expected galactic supernova neutrino signal at large next-generation underground detectors. At different epochs after the explosion, the primary fluxes can be quite different. For these primary neutrino fluxes, spectral…

High Energy Physics - Phenomenology · Physics 2010-08-03 Sandhya Choubey , Basudeb Dasgupta , Amol Dighe , Alessandro Mirizzi

We review the rich phenomena associated with neutrino flavor transformation in the presence of neutrino self-coupling. Our exposition centers on three collective neutrino oscillation scenarios: a simple bipolar neutrino system that…

High Energy Physics - Phenomenology · Physics 2011-02-02 Huaiyu Duan , George M. Fuller , Yong-Zhong Qian

We revisit the flavor composition of neutrinos from core-collapse supernovae (SN), focusing on robust predictions that are insensitive to the poorly known dynamics of collective flavor conversion in the inner core. Assuming that the many…

High Energy Physics - Phenomenology · Physics 2025-12-22 Antonio Capanema , Yago Porto , Maria Manuela Saez

If neutrinos have mass, they can also decay. Decay lifetimes of cosmological interest can be probed, in principle, through the detection of the redshifted, diffuse neutrino flux produced by all past supernovae--the so-called supernova relic…

High Energy Physics - Phenomenology · Physics 2009-10-07 G. L. Fogli , E. Lisi , A. Mirizzi , D. Montanino

The neutrinos from galactic supernovae can be detected by the Sudbury Neutrino Observatory and the Super-Kamiokande. The effect of neutrino mass can show up in the observed neutrino signal by (i) delay in the time of flight and (ii)…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sandhya Choubey , Kamales Kar

Core-collapse supernova neutrinos undergo a variety of phenomena when they travel from the high neutrino density region and large matter densities to the Earth. We perform analytical calculations of the supernova neutrino fluxes including…

Solar and Stellar Astrophysics · Physics 2015-05-28 Daavid Väänänen , Cristina Volpe

The flavor evolution of neutrinos in core collapse supernovae and neutron star mergers is a critically important unsolved problem in astrophysics. Following the electron flavor evolution of the neutrino system is essential for calculating…

High Energy Physics - Phenomenology · Physics 2023-12-29 Evan Grohs , Sherwood Richers , Sean M. Couch , Francois Foucart , James P. Kneller , G. C. McLaughlin

A core-collapse supernova will produce an enormous burst of neutrinos of all flavors in the few-tens-of-MeV range. Measurement of the flavor, time and energy structure of a nearby core-collapse neutrino burst will yield answers to many…

Instrumentation and Methods for Astrophysics · Physics 2012-11-20 Kate Scholberg

Measuring core-collapse supernova neutrinos, both from individual supernovae within the Milky Way and from past core collapses throughout the Universe (the diffuse supernova neutrino background, or DSNB), is one of the main goals of current…

High Energy Physics - Phenomenology · Physics 2022-12-21 Sebastian Baum , Francesco Capozzi , Shunsaku Horiuchi
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