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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

Using moment equations we analyze collective flavor transformation of supernova neutrinos. We study the convergence of moment equations and find that numerical results using a few moment converge quite fast. We study effects of emission…

High Energy Physics - Phenomenology · Physics 2009-06-29 Wei Liao

If $\nu_\mu$ or $\nu_\tau$ mix with $\nu_e$, neutrino oscillations and collisions in a supernova (SN) core allow these flavors effectively to participate in $\beta$ equilibrium and thus to obtain a large chemical potential. If a sterile…

Astrophysics · Physics 2009-10-22 G. Raffelt , G. Sigl

A suite of detectors around the world is poised to measure the flavor-energy-time evolution of the ten-second burst of neutrinos from a core-collapse supernova occurring in the Milky Way or nearby. Next-generation detectors to be built in…

High Energy Physics - Experiment · Physics 2017-12-19 Kate Scholberg

Neutrinos produced in extragalactic sources may experience flavor-oscillations and decoherence on their way to Earth due to their interaction with dark matter (DM). As a result, they may be detected in pointer-states other than the flavor…

High Energy Astrophysical Phenomena · Physics 2020-05-20 Ana V. Penacchioni , Osvaldo Civitarese

These conference proceedings cover various aspects of neutrino propagation through the high matter and neutrino densities near the proto-neutron star in a core-collapse supernova. A significant feature of this regime is the impact of…

Solar and Stellar Astrophysics · Physics 2011-11-10 A. B. Balantekin

There is a great interest in measuring the non-electronic component of neutrinos from core collapse supernovae by observing, for the first time, also neutral-current reactions. In order to assess the physics potential of the ultra-pure…

Solar and Stellar Astrophysics · Physics 2015-06-18 C. Lujan-Peschard , G. Pagliaroli , F. Vissani

The possibility of observing supernova (SN) neutrinos through the process of coherent elastic neutrino-nucleus scattering (CENNS) in future ton scale detectors designed primarily for direct detection of dark matter is investigated. In…

High Energy Astrophysical Phenomena · Physics 2014-02-05 Sovan Chakraborty , Pijushpani Bhattacharjee , Kamales Kar

We propose a next-to-minimal supersymmetric Standard Model (NMSSM) extended by an $\mathbb{A}_{4}\times \boldsymbol{Z}_{3}$ flavor symmetry and three right-handed neutrinos providing a detailed study of the neutrino sector and a solution to…

High Energy Physics - Phenomenology · Physics 2021-01-05 M. A. Ouahid , M. A. Loualidi , R. Ahl Laamara , E. H. Saidi

As a result of a non-trivial mixing matrix, neutrinos cannot be simultaneously in a flavor and mass eigenstate. We formulate and discuss information entropic relations that quantify the associated quantum uncertainty. We also formulate a…

High Energy Physics - Phenomenology · Physics 2020-11-18 Stefan Floerchinger , Jan-Markus Schwindt

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

A nearby supernova will carry an unprecedented wealth of information about astrophysics, nuclear physics, and particle physics. Because supernova are fundamentally neutrino driven phenomenon, our knowledge about neutrinos -- particles that…

High Energy Physics - Phenomenology · Physics 2025-05-06 Peter B. Denton , Yves Kini

It is becoming ever clearer that the neutrino signal from the next supernova in our Galaxy can reveal missing information about the neutrino as well as allowing us to probe the explosion of the star by decoding the temporal and spectral…

High Energy Physics - Phenomenology · Physics 2010-10-14 James P. Kneller

It has been noted for a long time that, in some circumstances, {\sl massless} neutrinos may be {\sl mixed} in the leptonic charged current. Conventional neutrino oscillation searches in vacuum are insensitive to this mixing. We discuss the…

High Energy Physics - Phenomenology · Physics 2009-09-17 H. Nunokawa , Y. -Z. Qian , A. Rossi , J. W. F. Valle

This paper examines neutrino flavor evolution outside a supernova neutrinosphere using a one-dimensional model that retains the non-linear nature of neutrino-neutrino interactions as well as some aspects of the full geometry. In some…

High Energy Astrophysical Phenomena · Physics 2015-06-26 B. D. Keister

Fast-pairwise collective neutrino oscillation represents a key uncertainty in the theory of core-collapse supernova (CCSN). Despite the potentially significant impact on CCSN dynamics, it is usually neglected in numerical models of CCSN…

High Energy Astrophysical Phenomena · Physics 2021-11-03 Hiroki Nagakura , Lucas Johns , Adam Burrows , George M. Fuller

Multi-dimensional core-collapse supernova simulations exhibit turbulence of large amplitude and over large scales. As neutrinos pass through the supernova mantle the turbulence is expected to modify their evolution compared to the case…

High Energy Physics - Phenomenology · Physics 2010-12-24 James P. Kneller , Cristina Volpe

The neutrino masses and flavor mixings, which are missing in the Standard Model (SM), can be naturally incorporated in the type-I seesaw extension of the SM with heavy Majorana neutrinos being singlet under the SM gauge group. If the heavy…

High Energy Physics - Phenomenology · Physics 2018-03-21 Arindam Das , Nobuchika Okada

The neutrino sector offers one of the most sensitive probes of new physics beyond the Standard Model of Particle Physics. The mechanism of neutrino mass generation is still unknown. The observed suppression of neutrino masses hints at a…

High Energy Physics - Phenomenology · Physics 2022-04-20 Yahya Almumin , Mu-Chun Chen , Murong Cheng , Victor Knapp-Perez , Yulun Li , Adreja Mondol , Saul Ramos-Sanchez , Michael Ratz , Shreya Shukla

The evolution of neutrino flavor in dense environments such as core-collapse supernovae and binary compact object mergers constitutes an important and unsolved problem. Its solution has potential implications for the dynamics and…

High Energy Astrophysical Phenomena · Physics 2021-04-29 Ermal Rrapaj , Amol V. Patwardhan , Eve Armstrong , George Fuller