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Multi-messenger astrophysics has produced a wealth of data with much more to come in the future. This enormous data set will reveal new insights into the physics of core collapse supernovae, neutron star mergers, and many other objects…

High Energy Astrophysical Phenomena · Physics 2024-10-08 Evan Grohs , Sherwood Richers , Sean M. Couch , Francois Foucart , Julien Froustey , Jim Kneller , Gail McLaughlin

Neutrino losses from proto-neutron stars play a pivotal role to decide if these stars would be crushed into black holes or explode as supernovae. Recent observations of subluminous Type II-P supernovae (e.g., 2005cs, 2003gd, 1999br, 1997D)…

Nuclear Theory · Physics 2011-08-09 Jameel-Un Nabi

A core-collapse supernova (SN) releases almost all of its energy in the form of neutrinos, which provide a unique opportunity to probe the working machinery of a SN. These sites are prone to neutrino-neutrino refractive effects, which can…

High Energy Physics - Phenomenology · Physics 2024-06-03 Manibrata Sen

A dense gas of neutrinos and antineutrinos can undergo fast pairwise conversions near the decoupling regions of core-collapse supernovae and in compact binary neutron star mergers. The flavor dependent neutrino heating can play a role in…

High Energy Astrophysical Phenomena · Physics 2021-08-03 Ian Padilla-Gay , Shashank Shalgar

The neutrino burst from a core-collapse supernova can provide information about the star explosion mechanism and the mechanisms of proto neutron star cooling but also about the intrinsic properties of the neutrino such as flavor…

Instrumentation and Detectors · Physics 2016-05-10 Inés Gil-Botella

In astrophysical environments such as core-collapse supernovae and neutron star-neutron star or neutron star-black hole mergers where dense neutrino media are present, matter-neutrino resonances (MNRs) can occur when the neutrino…

High Energy Physics - Phenomenology · Physics 2015-11-24 Meng-Ru Wu , Huaiyu Duan , Yong-Zhong Qian

Neutrinos propagating in dense neutrino media such as those in core-collapse supernovae can experience fast flavor conversions on scales much shorter than those expected in vacuum. It is believed that a necessary condition for the…

High Energy Astrophysical Phenomena · Physics 2020-05-22 Sajad Abbar

It was recently realized that three-flavor effects could peculiarly modify the development of spectral splits induced by collective oscillations, for supernova neutrinos emitted during the cooling phase of a protoneutron star. We…

High Energy Physics - Phenomenology · Physics 2014-11-20 Basudeb Dasgupta , Alessandro Mirizzi , Irene Tamborra , Ricard Tomas

A variety of neutrino flavour conversion phenomena occur in core-collapse supernova, due to the large neutrino density close to the neutrinosphere, and the importance of the neutrino-neutrino interaction. Three different regimes have been…

Solar and Stellar Astrophysics · Physics 2015-05-27 Sebastien Galais , Cristina Volpe

Charged-current neutrino processes such as $\nu_e + n \rightleftharpoons p + e^-$ and $\bar\nu_e + p \rightleftharpoons n + e^+$ destroy the flavor coherence among the weak-interaction states of a single neutrino and thus damp its flavor…

High Energy Physics - Phenomenology · Physics 2023-10-04 Zewei Xiong , Lucas Johns , Meng-Ru Wu , Huaiyu Duan

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

In the dense supernova environment, neutrinos can undergo fast flavor conversions which depend on the large neutrino-neutrino interaction strength. It has been recently shown that both their presence and outcome can be affected when passing…

High Energy Physics - Phenomenology · Physics 2022-10-28 Francesco Capozzi , Madhurima Chakraborty , Sovan Chakraborty , Manibrata Sen

We summarize the recent developments in our understanding of neutrino flavour conversion in core-collapse supernovae and discuss open questions.

Solar and Stellar Astrophysics · Physics 2015-06-11 Cristina Volpe

The neutrino fast flavor instability dominates the evolution of neutrino flavor within the engines of core-collapse supernovae and neutron star mergers. However, theoretical models of neutrino flavor change that include many-body quantum…

High Energy Astrophysical Phenomena · Physics 2026-05-22 Zoha Laraib , Sherwood Richers

Neutrinos in core-collapse supernovae and neutron-star mergers are susceptible to flavor instabilities of three kinds: slow, fast, and collisional. Prior work has established mappings of the first two onto abstract mechanical systems in…

High Energy Physics - Phenomenology · Physics 2023-12-19 Lucas Johns , Santiago Rodriguez

There is an accepted approach to calculation of the neutrino flavor density-matrix in the halo of a supernova, in which neutrino amplitudes, not cross-sections, need to be followed carefully in the region above the region of frequent…

High Energy Physics - Phenomenology · Physics 2021-04-08 Raymond F. Sawyer

Although Galactic core-collapse supernovae (SNe) only happen a few times per century, every hour a vast number of explosions happen in the whole universe, emitting energy in the form of neutrinos, resulting in the diffuse supernova neutrino…

High Energy Physics - Phenomenology · Physics 2021-05-20 Zahra Tabrizi , Shunsaku Horiuchi

By the analysis of the world data base of elastic electron scattering on the proton and the neutron (for the latter, in fact, on $^2H$ and $^3He$) important experimental insights have recently been gained into the flavor compositions of…

High Energy Physics - Phenomenology · Physics 2017-03-08 Martin Rohrmoser , Ki-Seok Choi , Willibald Plessas

We examine coherent active-active channel neutrino flavor evolution in environments where neutrino-neutrino forward scattering can engender large-scale collective flavor transformation. We point out a key quantity, the "total effective…

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

The neutrino spin-flavor conversion of \bar\nu_e and \nu_\mu which is induced by the interaction of the Majorana neutrino magnetic moment and magnetic fields in the collapse-driven supernova is investigated in detail. We calculate the…

Astrophysics · Physics 2014-10-13 Tomonori Totani , Katsuhiko Sato
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