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Flavor transition mechanisms of supernova (SN) neutrinos during their propagation deserve a close scrutiny. We present a method to verify Mikheyev-Smirnov-Wolfenstein (MSW) effect during the propagation of SN neutrinos from the SN core to…

高能天体物理现象 · 物理学 2023-03-14 Kwang-Chang Lai , C. S. Jason Leung , Guey-Lin Lin

The signatures of sterile neutrinos in the supernova neutrino signal in megaton water Cerenkov detectors are studied. Time dependent modulation of the neutrino signal emerging from the sharp changes in the oscillation probability due to…

高能物理 - 唯象学 · 物理学 2008-11-26 Sandhya Choubey , N. P. Harries , G. G. Ross

Neutrinos and gravitational waves are the only direct probes of the inner dynamics of a stellar core collapse. They are also the first signals to arrive from a supernova and, if detected, establish the moment when the shock wave is formed…

宇宙学与河外天体物理 · 物理学 2013-11-08 Matthew D. Kistler , Wick C. Haxton , Hasan Yuksel

A core-collapse supernova will produce an enormous burst of neutrinos of all flavors in the few-tens-of-MeV range. Measurement of the flavor, time and energy structure of a nearby core-collapse neutrino burst will yield answers to many…

天体物理仪器与方法 · 物理学 2012-11-20 Kate Scholberg

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…

高能物理 - 唯象学 · 物理学 2010-08-03 Sandhya Choubey , Basudeb Dasgupta , Amol Dighe , Alessandro Mirizzi

Accurate neutrino transport is crucial for reliably modeling explosive astrophysical events like core-collapse supernovae (CCSNe) and neutron star mergers (NSMs). However, in these extremely neutrino-dense systems, flavor oscillations…

高能天体物理现象 · 物理学 2025-08-29 Lucas Johns , Sherwood Richers , Meng-Ru Wu

Neutrino flavor evolution inside a core-collapse supernova is a topic of active research. The core of a supernova is an intense source of neutrinos and antineutrinos. Self-interaction among neutrinos (as well as antineutrinos) gives rise to…

高能天体物理现象 · 物理学 2025-02-20 Indrajit Ghose , Amitabha Lahiri

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…

高能物理 - 唯象学 · 物理学 2010-04-15 J. Gava , J. Kneller , C. Volpe , G. C. McLaughlin

We study electron-neutrino and electron-antineutrino signals from a supernova with strong magnetic field detected by a 100 kton liquid Ar detector. The change of neutrino flavors by resonant spin-flavor conversions, matter effects, and…

高能天体物理现象 · 物理学 2015-05-30 Takashi Yoshida , Akira Takamura , Keiichi Kimura , Shio Kawagoe , Toshitaka Kajino , Hidekazu Yokomakura

We point out possible features of neutrino spectra from a future galactic core collapse supernova that will enhance our understanding of neutrino mixing as well as supernova astrophysics. We describe the neutrino flavor conversions inside…

高能物理 - 唯象学 · 物理学 2009-09-03 Amol Dighe

In this review, the effect of flavor oscillations on the neutrinos released during supernova explosion after core collapse is described. In some scenarios there are large enhancement of the number of events compared to the no oscillation…

高能物理 - 唯象学 · 物理学 2007-05-23 Sandhya Choubey , Kamales Kar

The gravitational core collapse of a star produces a huge burst of neutrinos of all flavors. A number of detectors worldwide are sensitive to such a burst; its detection would yield information about both particle physics and astrophysics.…

天体物理学 · 物理学 2007-05-23 K. Scholberg

In a 1996 JRO Fellowship Research Proposal (Los Alamos), the author suggested that neutrino oscillations may provide a powerful indirect energy transport mechanism to supernovae explosions. The principal aim of this addendum is to present…

天体物理学 · 物理学 2008-11-26 D. V. Ahluwalia-Khalilova

We study theoretical neutrino signals from core-collapse supernova (CCSN) computed using axisymmetric CCSN simulations that cover the post-bounce phase up to $\sim 4$~s. We provide basic quantities of the neutrino signals such as event…

高能天体物理现象 · 物理学 2021-07-14 Hiroki Nagakura , Adam Burrows , David Vartanyan

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…

The LVD detector, located in the INFN Gran Sasso National Laboratory (Italy), studies supernova neutrinos through the interactions with protons and carbon nuclei in the liquid scintillator and interactions with the iron nuclei of the…

The neutrinos emitted from the proto-neutron star created in a core-collapse supernova must run through a significant amount of turbulence before exiting the star. Turbulence can modify the flavor evolution of the neutrinos imprinting…

高能物理 - 唯象学 · 物理学 2015-07-22 James P. Kneller , Neel V. Kabadi

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…

高能物理 - 唯象学 · 物理学 2010-04-23 Gianluigi Fogli , Eligio Lisi , Antonio Marrone , Irene Tamborra

We investigate neutrino oscillations from core-collapse supernovae that produce magnetohydrodynamic (MHD) explosions. By calculating numerically the flavor conversion of neutrinos in the highly non-spherical envelope, we study how the…

高能天体物理现象 · 物理学 2009-10-02 Shio Kawagoe , Tomoya Takiwaki , Kei Kotake

At the present time even the most sophisticated, multi-dimensional simulations of core-collapse supernovae do not (self-consistently) include neutrino flavor transformation. This physics is missing despite the importance of neutrinos in the…

高能天体物理现象 · 物理学 2020-10-14 Charles J. Stapleford , Carla Fröhlich , James P. Kneller