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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

According to recent studies, the collective flavor evolution of neutrinos in core-collapse supernovae depends strongly on the flavor-dependent angular distribution of the local neutrino radiation field, notably on the angular intensity of…

High Energy Astrophysical Phenomena · Physics 2017-04-27 Irene Tamborra , Lorenz Huedepohl , Georg Raffelt , Hans-Thomas Janka

We present 2D results of simulations of the magnetorotational core collapsed supernova. For the first time we obtain strong explosion for the core collapsed supernova. In 2D approximation we show that amplification of the toroidal magnetic…

Astrophysics · Physics 2007-05-23 S. G. Moiseenko , G. S. Bisnovatyi-Kogan , N. V. Ardeljan

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

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

We study the impact of neutrino oscillations on the supernova neutrino signal in the Large Volume Detector (LVD). The number of expected events for a galactic supernova (D=10 kpc) is calculated, assuming neutrino masses and mixing that…

Core-collapse supernovae are accompanied by formation of neutron stars. The gravitation energy is transformed into the energy of the explosion, observed as SN II, SN Ib,c type supernovae. We present results of 2-D MHD simulations, where the…

High Energy Astrophysical Phenomena · Physics 2014-08-12 G. S. Bisnovatyi-Kogan , S. G. Moiseenko , N. V. Ardeljan

We study the neutrino spin oscillations, i.e., neutrino spin precession caused by the neutrino interaction with matter polarized by external magnetic field (or, equivalently, by the interaction of the induced magnetic moment (IMM) of a…

High Energy Physics - Phenomenology · Physics 2019-09-06 A. Grigoriev , E. Kupcheva , A. Ternov

We study the effect of Majorana transition magnetic moments on the flavor evolution of neutrinos and antineutrinos inside the core of Type-II supernova explosions. We find non-trivial collective oscillation effects relating neutrinos and…

High Energy Astrophysical Phenomena · Physics 2015-06-05 Andre de Gouvea , Shashank Shalgar

Considering general relativistic, two-dimensional (2D) supernova (SN) explosion models of progenitor stars between 8.1 and 27 solar masses, we systematically analyze the properties of the neutrino emission from core collapse and bounce to…

Solar and Stellar Astrophysics · Physics 2014-06-27 B. Müller , H. -Th. Janka

We consider the Hamiltonian for neutrino oscillations in matter in the case of arbitrary potentials including off-diagonal complex terms. We derive the 'matter basis' Hamiltonian in terms of quantities one can derive from the flavor basis…

Solar and Stellar Astrophysics · Physics 2015-05-27 S. Galais , J. Kneller , C. Volpe

Neutrino induced reactions are a basic ingredient in astrophysical processes like star evolution. The existence of neutrino oscillations affects the rate of nuclear electroweak decays which participates in the chain of events that…

High Energy Physics - Phenomenology · Physics 2018-09-10 M. M. Saez , O. Civitarese , M. E. Mosquera

Fallback in core-collapse supernovae (CCSNe) plays an important role in determining the properties of the central compact remnants, which might produce a black hole (BH) hyperaccretion system in the centre of a massive CCSN. When the…

High Energy Astrophysical Phenomena · Physics 2021-08-10 Yun-Feng Wei , Tong Liu , Li Xue

Resonant active-to-active ($\nu_a \to \nu_a$), as well as active-to-sterile ($\nu_a \to \nu_s$) neutrino ($\nu$) oscillations can take place during the core bounce of a supernova collapse. Besides, over this phase, weak magnetism increases…

Astrophysics · Physics 2009-08-07 Herman J. Mosquera Cuesta , Karen Fiuza

Matter effects on the mixing of the neutrinos mass eigenstates, also know as the Mikheyev-Smirnov-Wolfenstein effect, seem to be well established in describing the propagation of the neutrino from the source to detecting devices. These…

High Energy Physics - Phenomenology · Physics 2018-09-13 Mihai Horoi

We simulate neutrino-antineutrino oscillations caused by strong magnetic fields in dense matter. With the strong magnetic fields and large neutrino magnetic moments, Majorana neutrinos can reach flavor equilibrium. We find that the flavor…

High Energy Physics - Phenomenology · Physics 2021-07-21 Hirokazu Sasaki , Tomoya Takiwaki

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 explore the effects of collective neutrino flavor oscillations due to neutrino-neutrino interactions on the neutrino heating behind a stalled core-collapse supernova shock. We carry out axisymmetric (2D) radiation-hydrodynamic…

Solar and Stellar Astrophysics · Physics 2014-03-06 Basudeb Dasgupta , Evan P. O'Connor , Christian D. Ott

A liquid Argon TPC (ICARUS-like) has the ability to detect clean neutrino bursts from type-II supernova collapses. In this paper, we consider for the first time the four possible detectable channels, namely, the elastic scattering on…

High Energy Physics - Phenomenology · Physics 2008-11-26 I. Gil-Botella , A. Rubbia

Fast flavor conversions of supernova neutrinos, possible near the neutrinosphere, depends on an interesting interplay of collisions and neutrino oscillations. Contrary to naive expectations, the rate of self-induced neutrino oscillations,…

High Energy Physics - Phenomenology · Physics 2019-03-13 Francesco Capozzi , Basudeb Dasgupta , Alessandro Mirizzi , Manibrata Sen , Günter Sigl
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