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We argue that the neutrino halo, a population of neutrinos that have undergone direction-changing scattering in the stellar envelope of a core-collapse supernova (CCSNe), is sensitive to neutrino emission history through time of flight. We…

高能天体物理现象 · 物理学 2020-07-22 John F. Cherry , George M. Fuller , Shunsaku Horiuchi , Kei Kotake , Tomoya Takiwaki , Tobias Fischer

As is well recognized, the supernova explosions produce a great amount of neutrinos, thus we have a strong reason to believe that all violent cosmological events, such as supernova explosions, gamma bursts, black hole merging or neutron…

高能物理 - 唯象学 · 物理学 2018-07-27 Zijian Song , Xue-Qian Li

We conduct a thorough examination of cosmological parameters within the context of $f(R)$ gravity coupled with neutrinos, leveraging a diverse array of observational datasets, including Cosmic Microwave Background (CMB), Cosmic Chronometers…

宇宙学与河外天体物理 · 物理学 2025-01-14 Muhammad Yarahmadi , Amin Salehi , Kazuharu Bamba , Hosein Farajollahi

The purpose of this paper is both to provide mathematical reinforcements to the paper [Mecozzi and Bellini : arXiv:1110.1253 [hep-ph]] by taking decoherence into consideration and to present some important problems related. We claim that…

综合物理 · 物理学 2012-09-26 Kazuyuki Fujii

Neutrinos, as the anisotropic stress tensor, have a damping effect on the tensor mode perturbation from inflation to the $ \Lambda$ dominated era. First, we study the squared amplitude reduction for the wavelength entering the horizon…

广义相对论与量子宇宙学 · 物理学 2021-08-27 Jafar Khodagholizadeh

The high precision measurements of the cosmic microwave background by the Planck survey yielded tight constraints on cosmological parameters and the statistics of the density fluctuations at the time of recombination. This provides the…

宇宙学与河外天体物理 · 物理学 2016-10-19 Hans Boehringer , Gayoung Chon

Neutrinos are believed to be the most abundant fermions in the Universe, but their masses are unknown, except for being non-zero but much smaller than other fermions. Cosmological relic neutrinos could also have non-zero chemical potentials…

宇宙学与河外天体物理 · 物理学 2025-08-28 Wangzheng Zhang , Ming-chung Chu , Rui Hu , Shihong Liao , Shek Yeung

Theoretical predictions of the prompt atmospheric neutrino flux have large uncertainties associated with charm hadron production, by far the dominant source of prompt neutrinos in the atmosphere. The flux of cosmic rays, with its steeply…

高能物理 - 唯象学 · 物理学 2021-08-02 Yu Seon Jeong , Weidong Bai , Milind Diwan , Maria Vittoria Garzelli , Fnu Karan Kumar , Mary Hall Reno

The depth of our theoretical understanding of neutrino flavor mixing should match the importance of this phenomenon as a herald of long-awaited empirical challenges to the standard model of particle physics. After reviewing the familiar,…

高能物理 - 唯象学 · 物理学 2007-05-23 Christian Y. Cardall

IceCube have observed neutrinos which are presumably of extra-galactic origin. Since specific sources have not yet been identified, we discuss what could be learned from the conceptual point of view. We use a simple model for neutrino…

高能天体物理现象 · 物理学 2014-11-19 Walter Winter

If Lorentz invariance is only an approximate property of equations describing a sector of matter above some critical distance scale, the speed of light c will not necessarily be the only critical speed in vacuum. Superluminal sectors of…

高能物理 - 唯象学 · 物理学 2008-02-03 Luis Gonzalez-Mestres

In the framework of a model based on the gravitational field of the Kerr black hole, we turn to investigate the kinematic behavior of extragalactic jets. We analytically calculate the observable velocities and accelerations along any…

广义相对论与量子宇宙学 · 物理学 2017-08-28 J. Gariel , N. O. Santos , Anzhong Wang

We study the neutrino scattering off a rotating black hole with a realistic accretion disk permeated by an intrinsic magnetic field. Neutrino trajectories in curved spacetime as well as the particle spin evolution in dense matter of an…

高能物理 - 唯象学 · 物理学 2021-04-05 Maxim Dvornikov

We present a rather powerful method in investigations of different phenomena that can appear when neutrinos and electrons are moving in the background matter. This method is based on the use of the modified Dirac equations for the particles…

高能物理 - 唯象学 · 物理学 2014-11-27 Alexander Studenikin

The connection between cosmological observations and neutrino physics is discussed in detail. Neutrinos decouple from thermal contact in the early Universe at a temperature of order 1 MeV which coincides with the temperature where light…

高能物理 - 唯象学 · 物理学 2008-11-26 Steen Hannestad

We begin with a brief overview of highest-energy cosmic ray data, and the experiments which will perform neutrino astronomy. We then discuss two particle physics aspects of neutrinos. They are possible long-lifetime decay of the neutrino,…

天体物理学 · 物理学 2011-07-19 Thomas J. Weiler

Space-time localization diagrams ``unlock" subtle aspects of $\nu$ oscillations such as coherence and entanglement. Observability of propagation decoherence in oscillating neutrino state is discussed. The sizes of WPs of reactor and source…

高能物理 - 唯象学 · 物理学 2022-12-21 Alexei Y Smirnov

Lorentz Invariance Violation (LIV) arises in various quantum-gravity theories. As the typical energy for quantum gravity is the Planck mass, $M_{pl}$, LIV will, most likely, be manifested at very high energies that are not accessible on…

高能物理 - 唯象学 · 物理学 2008-11-26 Uri Jacob , Tsvi Piran

We predict a new mechanism for the spin light of neutrino ($SL\nu$) that can be emitted by a neutrino moving in gravitational fields. This effect is studied on the basis of the quasiclassical equation for the neutrino spin evolution in a…

高能物理 - 唯象学 · 物理学 2011-09-13 Maxim Dvornikov , Alexander Grigoriev , Alexander Studenikin

Neutrinos undergoing stochastic perturbations as they propagate experience decoherence, damping neutrino oscillations over distance. Such perturbations may result from fluctuations in space-time itself if gravity is a quantum force,…

高能物理 - 唯象学 · 物理学 2022-01-19 Thomas Stuttard , Mikkel Jensen