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Related papers: Supernova neutrinos

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When the neutral current neutrino-neutrino interaction is treated completely, rather than as an interaction among angle-averaged distributions, or as a set of flavor-diagonal effective potentials, the result can be flavor mixing at a speed…

High Energy Physics - Phenomenology · Physics 2009-11-11 R. F. Sawyer

In core-collapse supernovae, neutrinos and antineutrinos are initially subject to significant self-interactions induced by weak neutral currents, which may induce strong-coupling effects on the flavor evolution (collective transitions). The…

High Energy Physics - Phenomenology · Physics 2008-09-19 G. L. Fogli , E. Lisi , A. Marrone , A. Mirizzi

Neutrinos emitted during stellar core collapse up to their trapping phase carry information about the stage from which the Supernova explosion process initiates. The dominant $\nu_e$ emission mechanism is by electron capture on free protons…

Astrophysics · Physics 2009-10-30 F. K. Sutaria , A. Ray

The depth of our theoretical understanding of neutrino flavor mixing should match the importance of this phenomenon as a herald of long-awaited empirical challenges to the standard model of particle physics. After reviewing the familiar,…

High Energy Physics - Phenomenology · Physics 2007-05-23 Christian Y. Cardall

Pulsars are rapidly rotating neutron stars and are the outcome of the collapse of the core of a massive star with a mass of the order of or larger than eight solar masses. This process releases a huge gravitational energy of about 10^{53}…

High Energy Physics - Phenomenology · Physics 2011-10-27 M. Barkovich , J. C. D'Olivo , R. Montemayor

Advances in our understanding and the modeling of stellar core-collapse and supernova explosions over the past 15 years are reviewed, concentrating on the evolution of hydrodynamical simulations, the description of weak interactions and…

Astrophysics · Physics 2008-11-26 H. -Th. Janka , K. Langanke , A. Marek , G. Martinez-Pinedo , B. Mueller

Neutrino masses and mixings produce vacuum oscillations, an established quantum mechanical phenomenon. In matter, the Mikheev-Smirnov-Wolfenstein effect, due to neutrino interactions with the background particles, triggers resonant flavor…

High Energy Physics - Phenomenology · Physics 2024-10-11 M. Cristina Volpe

The question why and how core-collapse supernovae (SNe) explode is one of the central and most long-standing riddles of stellar astrophysics. A solution is crucial for deciphering the SN phenomenon, for predicting observable signals such as…

High Energy Astrophysical Phenomena · Physics 2018-04-25 H. -Th. Janka

Neutrinos from core collapse supernovae can excite nuclei of some detector materials beyond their neutron emission thresholds. Detection of these neutrons can give valuable information about the supernova explosion mechanism and possibly…

High Energy Physics - Phenomenology · Physics 2021-04-14 Pijushpani Bhattacharjee , Kamales Kar

Neutrinos emitted from a supernova encode useful information about neutrino physics and astrophysics. Interpreting the neutrino signal depends crucially on understanding neutrino production, flavor mixing during propagation, and detection.…

High Energy Physics - Phenomenology · Physics 2011-04-22 Basudeb Dasgupta

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

Neutron stars, the compact stellar remnants of core-collapse supernova explosions, are unique cosmic laboratories for exploring novel phases of matter under extreme conditions. In particular, the occurrence of superfluidity and…

High Energy Astrophysical Phenomena · Physics 2017-09-22 N. Chamel

Oscillations of neutrino emerging from a supernova core are studied. In this extremely high density region neutrino self interactions induce collective flavor transitions. When collective transitions are decoupled from matter oscillations,…

High Energy Physics - Phenomenology · Physics 2008-05-19 Gianluigi Fogli , Eligio Lisi , Antonio Marrone , Alessandro Mirizzi

Massive stars live fast and die young. They shine furiously for a few million years, during which time they synthesize most of the heavy elements in the universe in their cores. They end by blowing themselves up in a powerful explosion…

High Energy Astrophysical Phenomena · Physics 2011-12-21 Anders Jerkstrand

Massive stars (M> 10Msun) end their lives with spectacular explosions due to gravitational collapse. The collapse turns the stars into compact objects such as neutron stars and black holes with the ejection of cosmic rays and heavy…

High Energy Astrophysical Phenomena · Physics 2015-06-12 K. Sumiyoshi

Neutron-rich matter at subnuclear densities may involve complex structures displaying a variety of shapes, such as spherical, slablike, and/or rodlike shapes. These phases of the {\it nuclear pasta} are expected to exist in the crust of…

Astrophysics · Physics 2009-11-10 C. J. Horowitz , M. A. Perez-Garcia , J. Piekarewicz

This talk reviews three inputs important to neutrino-induced nucleosynthesis in a supernova: 1) "standard" properties of the supernova neutrino flux, 2) effects of phenomena like neutrino oscillations on that flux, and 3) nuclear structure…

Nuclear Theory · Physics 2015-06-26 W. C. Haxton

Neutrino processes in dense matter play a key role in the dynamics, deleptonization and early cooling of hot protoneutron stars formed in the gravitational collapse of massive stars. Here we calculate neutrino mean free paths from…

Nuclear Theory · Physics 2009-09-25 Sanjay Reddy , Madappa Prakash

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…

The neutrino-driven wind, which occurs after the onset of a core-collapse supernova explosion, has long been considered as the possible site for the synthesis of heavy r-process elements in the Universe. Only recently, it has been possible…

High Energy Astrophysical Phenomena · Physics 2015-06-03 T. Fischer , G. Martínez-Pinedo , M. Hempel , M. Liebendörfer
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