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We study the effects of neutrino oscillation on supernova neutrino in the case of the inverted mass hierarchy ($m_{3} \ll m_{1} < m_{2}$) as well as the normal mass hierarchy ($m_{1} < m_{2} \ll m_{3}$). Numerical analysis using a realistic…

高能物理 - 唯象学 · 物理学 2009-11-07 K. Takahashi , K. Sato

Electrons and electron neutrinos in the inner core of the core-collapse supernova are highly degenerate and therefore numerous during a few seconds of explosion. In contrast, leptons of other flavors are non-degenerate and therefore…

高能物理 - 唯象学 · 物理学 2010-10-06 Oleg Lychkovskiy , Sergei Blinnikov , Mikhail Vysotsky

Cosmology yields the most restrictive limits on neutrino masses and conversely, massive neutrinos would contribute to the cosmic dark-matter density and would play an important role for the formation of structure in the universe. Neutrino…

高能物理 - 唯象学 · 物理学 2015-06-25 G. G. Raffelt

Nonspherical mass motions are a generic feature of core-collapse supernovae, and hydrodynamic instabilities play a crucial role for the explosion mechanism. First successful neutrino-driven explosions could be obtained with self-consistent,…

太阳与恒星天体物理 · 物理学 2016-11-23 H. -Thomas Janka , Tobias Melson , Alexander Summa

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

A suite of detectors around the world is poised to measure the flavor-energy-time evolution of the ten-second burst of neutrinos from a core-collapse supernova occurring in the Milky Way or nearby. Next-generation detectors to be built in…

高能物理 - 实验 · 物理学 2017-12-19 Kate Scholberg

We revisit the flavor composition of neutrinos from core-collapse supernovae (SN), focusing on robust predictions that are insensitive to the poorly known dynamics of collective flavor conversion in the inner core. Assuming that the many…

高能物理 - 唯象学 · 物理学 2025-12-22 Antonio Capanema , Yago Porto , Maria Manuela Saez

A dense neutrino medium can experience collective flavor oscillations through nonlinear neutrino-neutrino refraction. To make this multi-dimensional flavor transport problem more tractable, all existing studies have assumed certain…

高能物理 - 唯象学 · 物理学 2015-06-04 Huaiyu Duan , Shashank Shalgar

Neutrinos emitted during stellar core collapse leading to a supernova are primarily of the electron neutrino type at source which may undergo oscillation between flavor eigenstates during propagation to an earth-bound detector. Although the…

天体物理学 · 物理学 2009-10-30 Debasish Majumdar , Kamales Kar , Alak Ray , Amitava Raychaudhuri , Firoza K. Sutaria

We investigate the effects of nonstandard four-fermion neutrino-neutrino interactions on the flavor evolution of dense neutrino gases. We find that in the regions where the neutrino-neutrino refractive index leads to collective flavor…

高能物理 - 唯象学 · 物理学 2010-04-21 Mattias Blennow , Alessandro Mirizzi , Pasquale D. Serpico

We review the role of massive neutrinos in astrophysics and cosmology, assuming that the oscillation interpretation of solar and atmospheric neutrinos is correct. In particular, we discuss cosmological mass limits, neutrino flavor…

高能物理 - 唯象学 · 物理学 2007-05-23 G. G. Raffelt

On February 23, 1987 we collected 24 neutrinos from the explosion of a blue super-giant star in the Large Magellanic Cloud confirming the basic paradigm of core-collapse supernova. During the many years we have been waiting for a repeat of…

高能物理 - 唯象学 · 物理学 2015-07-07 James P. Kneller

In the framework of quantum field theory, a graviton interacts locally with a quantum state having definite mass, i.e. the gravitational mass eigenstate, while a weak boson interacts with a state having definite flavor, i.e. the flavor…

高能物理 - 唯象学 · 物理学 2015-10-05 Jonathan Miller , Roman Pasechnik

The neutrino oscillation patterns can be modified by neutrino interactions with external environments including electromagnetic fields that can influence on neutrinos in the case neutrinos have nonzero electromagnetic properties [1]. The…

高能物理 - 唯象学 · 物理学 2020-01-01 Konstantin Stankevich , Alexander Studenikin

We study two-flavor collective neutrino oscillations in the dense-neutrino region above the neutrino sphere in a supernova (SN). The angular dependence of the neutrino-neutrino interaction potential causes "multi-angle" effects that can…

高能物理 - 唯象学 · 物理学 2008-11-26 Andreu Esteban-Pretel , Sergio Pastor , Ricard Tomas , Georg Raffelt , Gunter Sigl

We show that interactions violating the conservation of lepton numbers in the neutrino sector could significantly alter the standard low entropy picture for the pre-supernova collapsing core of a massive star. A rapid neutrino-antineutrino…

We discuss the recent progress in our understanding of neutrino flavour conversion in core-collapse supernovae and focus on the effects coming from the neutrino-neutrino interaction. The latter has been shown to engender new phenomena,…

太阳与恒星天体物理 · 物理学 2011-09-01 Cristina Volpe

Observing a high-statistics neutrino signal from a galactic supernova (SN) would allow one to test the standard delayed explosion scenario and may allow one to distinguish between the normal and inverted neutrino mass ordering due to the…

高能物理 - 唯象学 · 物理学 2009-11-11 Georg G. Raffelt

For neutrinos streaming from a supernova (SN) core, dense matter suppresses self-induced flavor transformations if the electron density n_e significantly exceeds the neutrino density n_nu in the conversion region. If n_e is comparable to…

天体物理学 · 物理学 2008-11-26 A. Esteban-Pretel , A. Mirizzi , S. Pastor , R. Tomas , G. G. Raffelt , P. D. Serpico , G. Sigl

The massive neutrinos gravitational infall and their inprints left on the CMB temperature and matter density fluctuations power spectra are analysed taking into account the massive neutrino properties: the mass degeneracy, the phase space…

天体物理学 · 物理学 2007-05-23 L. A. Popa