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Related papers: A dynamical collective calculation of supernova ne…

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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

The neutrinos detected from the next Galactic core-collapse supernova will contain valuable information on the internal dynamics of the explosion. One mechanism leading to a temporal evolution of the neutrino signal is the variation of the…

Astrophysics · Physics 2008-11-26 James P. Kneller , Gail C. McLaughlin , Justin Brockman

We investigate shock wave effects upon the diffuse supernova neutrino background using dynamic profiles taken from hydrodynamical simulations and calculating the neutrino evolution in three flavors with the S-matrix formalism. We show that…

High Energy Physics - Phenomenology · Physics 2014-11-20 Sebastien Galais , James Kneller , Cristina Volpe , Jerome Gava

Collective flavor oscillations driven by neutrino-neutrino self interaction inside core-collapse supernovae have now been shown to bring drastic changes in the resultant neutrino fluxes. This would in turn significantly affect the diffuse…

High Energy Physics - Phenomenology · Physics 2009-05-29 Sovan Chakraborty , Sandhya Choubey , Basudeb Dasgupta , Kamales Kar

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

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 investigate the collective neutrino oscillations under the three flavor multi-angle approximation in a spherically symmetric simulation of failed supernovae. A failed supernova emits high neutrino fluxes in a short time, while intense…

High Energy Astrophysical Phenomena · Physics 2018-12-19 Masamichi Zaizen , Takashi Yoshida , Kohsuke Sumiyoshi , Hideyuki Umeda

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

A few seconds after bounce in a core-collapse supernova, the shock wave passes the density region corresponding to resonant neutrino oscillations with the ``atmospheric'' neutrino mass difference. The transient violation of the adiabaticity…

Astrophysics · Physics 2009-11-10 R. Tomas , M. Kachelriess , G. Raffelt , A. Dighe , H. -T. Janka , L. Scheck

I shall review some of the recent results concerning the astrophysics of a core collapse supernova (SN) and neutrino oscillations. Neutrinos play an important role in the SN explosion, and they also carry most of the energy of the collapse.…

High Energy Physics - Phenomenology · Physics 2009-11-10 Amol Dighe

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

Neutrino and antineutrino fluxes from a core-collapse galactic supernova are studied, within a representative three-flavor scenario with inverted mass hierarchy and tiny 1-3 mixing. The initial flavor evolution is dominated by collective…

High Energy Physics - Phenomenology · Physics 2010-04-23 Gianluigi Fogli , Eligio Lisi , Antonio Marrone , Irene Tamborra

We give a very brief overview of collective effects in neutrino oscillations in core collapse supernovae where refractive effects of neutrinos on themselves can considerably modify flavor oscillations, with possible repercussions for future…

High Energy Physics - Phenomenology · Physics 2009-09-11 Guenter Sigl , Ricard Tomas , Andreu Esteban-Pretel , Sergio Pastor , Alessandro Mirizzi , Georg G. Raffelt , Pasquale D. Serpico

Signatures of neutrino and antineutrino signals from stellar collapse in heavy water detectors are contrasted with those in water detectors. The effects of mixing, especially due to the highly dense matter in the supernova core, are…

High Energy Physics - Phenomenology · Physics 2011-08-17 Gautam Dutta , D. Indumathi , M. V. N. Murthy , G. Rajasekaran

We analyze the possibility of probing non-standard neutrino interactions (NSI, for short) through the detection of neutrinos produced in a future galactic supernova (SN).We consider the effect of NSI on the neutrino propagation through the…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Esteban-Pretel , R. Tomàs , J. W. F. Valle

The large neutrino fluxes emitted with a distinct flavor hierarchy from core-collapse supernovae (SNe) during the post-bounce accretion phase, offer the best opportunity to detect effects from neutrino flavor oscillations. We perform a…

High Energy Physics - Phenomenology · Physics 2013-05-29 Sovan Chakraborty , Tobias Fischer , Alessandro Mirizzi , Ninetta Saviano , Ricard Tomas

Non-linear effects on supernova neutrino oscillations, associated with neutrino self-interactions, are known to induce collective flavor transitions near the supernova core for theta_13 \neq 0. In scenarios with very shallow electron…

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

Neutrino propagation through a turbulent medium can be highly non-adiabatic leading to distinct signatures in the survival probabilities. A core-collapse supernova can be host to a number of hydrodynamic instabilities which occur behind the…

High Energy Physics - Phenomenology · Physics 2025-07-02 Mainak Mukhopadhyay , Manibrata Sen

We consider the effect of non-standard neutrino interactions (NSI, for short) on the propagation of neutrinos through the supernova (SN) envelope within a three-neutrino framework and taking into account the presence of a neutrino…

High Energy Physics - Phenomenology · Physics 2010-04-06 A. Esteban-Pretel , R. Tomas , J. W. F. Valle

We investigate collective flavor oscillations of supernova neutrinos at late stages of the explosion. We first show that the frequently used single-angle (averaged coupling) approximation predicts oscillations close to, or perhaps even…

High Energy Physics - Phenomenology · Physics 2011-04-21 Huaiyu Duan , Alexander Friedland
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