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Fermions act as sources of spacetime torsion. However, this torsion is non-dynamical and can be eliminated using its equations of motion. The resulting theory features an effective four-fermion interaction in a torsion-free background.…

高能物理 - 唯象学 · 物理学 2025-12-03 Riya Barick , Amitabha Lahiri

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

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

We investigate the effect of matter density fluctuations on supernova collective neutrino flavor oscillations. In particular, we use full multi-angle, 3-flavor, self-consistent simulations of the evolution of the neutrino flavor field in…

高能天体物理现象 · 物理学 2013-05-29 John F. Cherry , Meng-Ru Wu , Joe Carlson , Huaiyu Duan , George M. Fuller , Yong-Zhong Qian

Neutrinos are believed to have a key role in the explosion mechanism of core-collapse supernovae as they carry most of the energy released by the gravitational collapse of a massive star. If their flavor is converted fast inside the…

Neutrinos play a key role in core-collapse supernova explosions. Carrying information from deep inside the stellar core, neutrinos are direct probes of the supernova mechanism. Intriguing recent developments on the role of neutrinos in…

高能物理 - 唯象学 · 物理学 2016-04-26 Irene Tamborra

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.…

高能物理 - 唯象学 · 物理学 2009-11-10 Amol Dighe

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…

天体物理学 · 物理学 2008-11-26 James P. Kneller , Gail C. McLaughlin , Justin Brockman

Core-collapse supernovae are among the most energetic explosions in the universe marking the catastrophic end of massive stars. In spite of rigorous studies for several decades, we still don't understand the explosion mechanism completely.…

天体物理学 · 物理学 2009-11-13 Kei Kotake , Katsuhiko Sato , Keitaro Takahashi

The large neutrino density in the deep interior of core-collapse supernovae and compact binary merger remnants makes neutrino flavor evolution non-linear because of the coherent forward scattering of neutrinos among themselves. Under the…

高能天体物理现象 · 物理学 2023-08-16 Shashank Shalgar , Irene Tamborra

Models with extra space dimensions naturally provide for the existence of fermions that propagate in them. These are seen in 4D as an infinite tower of sterile neutrinos possibly mixed with the Standard Model ones. We consider the effect of…

高能物理 - 唯象学 · 物理学 2007-05-23 Marco Cirelli

In core-collapse supernovae, the neutrino density is so large that neutrino flavor instabilities, leading to flavor conversion, can be triggered by the forward scattering of neutrinos among each other, if a crossing between the angular…

高能天体物理现象 · 物理学 2024-09-10 Shashank Shalgar , Irene Tamborra

A core-collapse supernova (SN) releases almost all of its energy in the form of neutrinos, which provide a unique opportunity to probe the working machinery of a SN. These sites are prone to neutrino-neutrino refractive effects, which can…

高能物理 - 唯象学 · 物理学 2024-06-03 Manibrata Sen

The undetermined neutrino mass hierarchy may leave an observable imprint on the neutrino fluxes from a core-collapse supernova (SN). The interpretation of the observables, however, is subject to the uncertain SN models and the flavor…

高能物理 - 唯象学 · 物理学 2015-06-18 S. H. Chiu , Chu-Ching Huang , Kwang-Chang Lai

We show that non-standard neutrino self-interactions can lead to total flavor equipartition in a dense neutrino gas, such as those expected in core-collapse supernovae. In this first investigation of this phenomenon in the multi-angle…

高能天体物理现象 · 物理学 2023-05-17 Sajad Abbar

The neutrino burst from a core-collapse supernova can provide information about the star explosion mechanism and the mechanisms of proto neutron star cooling but also about the intrinsic properties of the neutrino such as flavor…

仪器与探测器 · 物理学 2016-05-10 Inés Gil-Botella

Neutrino interactions with matter play an important role in determining the nucleosynthesis outcome in explosive astrophysical environments such as core-collapse supernovae or mergers of compact objects. In this article, we first discuss…

高能天体物理现象 · 物理学 2016-03-16 Meng-Ru Wu , Gabriel Martinez-Pinedo , Yong-Zhong Qian

We study spin and flavor oscillations of astrophysical neutrinos under the influence of external fields in curved spacetime. First, we consider spin oscillations in case of neutrinos gravitationally scattered off a rotating supermassive…

高能物理 - 唯象学 · 物理学 2023-06-01 Maxim Dvornikov

Here I review some nuclear physics aspects of core-collapse supernovae concerning neutrinos. Studies of neutrino emission and interactions in supernovae are crucial to our understanding of the explosion mechanism, the heavy element…

天体物理学 · 物理学 2007-05-23 Yong-Zhong Qian

Neutrinos play a crucial role in the collapse and explosion of massive stars, governing the infall dynamics of the stellar core, triggering and fueling the explosion and driving the cooling and deleptonization of the newly formed neutron…