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Neutrino oscillations change when in media in comparison to vacuum oscillations due to the scattering of neutrinos on matter constituents, electrons particularly. This can be easily described by introducing new effective matter mixing…

高能物理 - 唯象学 · 物理学 2018-10-02 Tomas Nosek

Existing limits on the non-radiative decay of one neutrino to another plus a massless particle (e.g., a singlet Majoron) are very weak. The best limits on the lifetime to mass ratio come from solar neutrino observations, and are $\tau/m…

高能物理 - 唯象学 · 物理学 2010-04-06 John F. Beacom , Nicole F. Bell , Dan Hooper , Sandip Pakvasa , Thomas J. Weiler

In the Coulomb field of nucleus cut off on it size, besides usual atomic states, there are additional ones. These anomalous states are deep (in the range of $10\,MeV$) in the Dirac sea and can exist solely during a macroscopic acceleration…

综合物理 · 物理学 2024-01-18 B. Ivlev

We have examined the head-on collision of two electrons in approximation of coherent states. We have shown that the character of collision depends mainly on ratio of initial relative electron's momentum to momentum uncertainty of electrons.…

量子物理 · 物理学 2009-11-10 C. V. Usenko , V. O. Gnatovskyy , N. A. Cherkashina

One of the most widespread interpretations of the mass-energy equivalence establishes that not only can mass be transformed into energy (e.g., through nuclear fission, fusion, or annihilation) but that every type of energy also has mass…

综合物理 · 物理学 2024-08-27 Germano D'Abramo

We have long ago derived a theoretical relation between the mass of the electron and the fine structure constant \cite{Nottale1994}, which writes to lowest order $\alpha \ln (m_{\mathbb{P}}/m_e) = 3/8$ (where $m_{\mathbb{P}}$ is the Planck…

综合物理 · 物理学 2021-04-09 Laurent Nottale

Recent progress in the understanding of the effect of electrostatics in soft matter is presented. A vast amount of materials contains ions ranging from the molecular scale (e.g., electrolyte) to the meso/macroscopic one (e.g., charged…

软凝聚态物质 · 物理学 2008-12-01 Rene Messina

In this work, we test a possible redshift variation of the electron-to-proton mass ratio, $\mu = m_e/m_p$, directly from galaxy cluster gas mass fraction measurements and type Ia supernovae observations. Our result reveals no variation of…

高能物理 - 唯象学 · 物理学 2025-02-04 R. G. Albuquerque , R. F. L. Holanda , I. E. T. R. Mendonça , P. S. Rodrigues da Silva

Due to quantum gravity fluctuations at the Planck scale, the space-time manifold is no longer continuous, but discretized. As a result the Lorentz symmetry is broken at very high energies. In this article, we study the neutrino oscillation…

高能物理 - 唯象学 · 物理学 2012-08-01 Iman Motie , She-Sheng Xue

The identification of the nature of dark matter is one of the most important problems confronting particle physics. Current observational constraints permit the mass of the dark matter to range from $10^{-22}$ eV - $10^{48}$ GeV. Given the…

高能物理 - 唯象学 · 物理学 2022-04-08 Surjeet Rajendran

The concept of the Lorentz-invariant mass of a group of particles is shown to be applicable to biphoton states formed in the process of spontaneous parametric down conversion. The conditions are found when the Lorentz-invariant mass is…

量子物理 · 物理学 2019-06-26 S. V. Vintskevich , D. A. Grigoriev , M. V. Fedorov

There are two types of fluctuations in the quantum vacuum: type 1 vacuum fluctuations are on shell and can interact with matter in specific, limited ways that have observable consequences; type 2 vacuum fluctuations are off shell and cannot…

量子物理 · 物理学 2020-03-31 G. B. Mainland , Bernard Mulligan

One of the most intringuing questions about neutron stars concerns their maximum mass. The answer is intimately related to the properties of matter at densities far beyond that found in heavy atomic nuclei. The current view on the internal…

高能天体物理现象 · 物理学 2013-11-19 N. Chamel , P. Haensel , J. L. Zdunik , A. F. Fantina

The Coulomb energy of a charge that is uniformly distributed on some set is maximized (among sets of given volume) by balls. It is shown here that near-maximizers are close to balls.

泛函分析 · 数学 2015-10-27 Almut Burchard , Gregory R. Chambers

In this letter we show that the presence of the long-range Coulomb force in dense stellar matter implies that the total charge cannot be associated with a chemical potential, even if it is a conserved quantity. As a further consequence, the…

天体物理学 · 物理学 2008-11-26 P. Chomaz , F. Gulminelli , C. Ducoin , P. Napolitani , K. H. O. Hasnaoui

We consider collisions between massive (electrons) and massless (photons) particles near the horizon of a rotating black hole. Similarly to collisions between massive particles, the infinite energy in the centre of mass frame occurs in some…

广义相对论与量子宇宙学 · 物理学 2011-05-03 O. B. Zaslavskii

The exciton-exciton effective scattering which rules the time evolution of two excitons is studied as a function of initial momentum difference, scattering angle and electron-to-hole mass ratio. We show that this effective scattering can…

介观与纳米尺度物理 · 物理学 2015-05-18 Laura Pilozzi , Monique Combescot , Odile Betbeder-Matibet , Andrea D'Andrea

In this work a new mechanics will be studied which is based on the hypothesis that the change of linear momentum of a particle happens as a discrete pulses. By using this hypothesis and by considering Newton's relation between energy and…

综合物理 · 物理学 2015-06-26 Munir Al-Hashimi

Recent proposals to study the mass of the "electron" neutrino at a sensitivity of 0.3 eV can be used to place limits on the right handed and scalar charged currents at a level which improves on the present experimental limits. Indeed the…

高能物理 - 唯象学 · 物理学 2007-05-23 B. H. J. McKellar , M. Garbutt , G. J. Stephenson , T. Goldman

Based on the quantum interference between two-identical-nucleus scattering at energies around the Coulomb barrier, the barrier positions for $^{58}$Ni+$^{58}$Ni and $^{16}$O+$^{16}$O are extracted from Mott oscillations in the angular…

核理论 · 物理学 2018-07-31 Ning Wang , Yongxu Yang , Min Liu , Chengjian Lin