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Low mass particles with small electric charges can be produced abundantly in large electric fields via the Schwinger effect. We study the production rate of such particles inside the polar gap of nearby pulsars. After production they are…

高能物理 - 唯象学 · 物理学 2025-11-10 Chris Kouvaris , Ian M. Shoemaker

Simple arguments based on uncertainty principle and Dirac's equation are examined which show that electron behaves either as a point-like charge or as an extended distribution according as high- or low-energy experiments are considered.

量子物理 · 物理学 2007-05-23 P. Brovetto , V. Maxia , M. Salis

We make an attempt to describe the spectrum of masses of elementary particles, as it comes out empirically in six distinct scales. We argue for some rather well defined mass scales, like the electron mass: it seems to us that there is a…

高能物理 - 唯象学 · 物理学 2015-05-27 Luis J. Boya , Cristian Rivera

Dark matter particles were suggested to have an electric charge smaller than the elementary charge unit $e$. The behavior of such a medium is similar to a collisionless plasma. In this paper, we set new stringent constraints on the charge…

宇宙学与河外天体物理 · 物理学 2026-02-03 Mikhail V. Medvedev , Abraham Loeb

Expressions for the ion and electron thermal forces acting on a charged grain, suspended in a weakly ionized plasma subject to temperature gradients, are derived. The main emphasize is on the conditions pertinent to the investigations of…

等离子体物理 · 物理学 2013-01-15 Sergey A. Khrapak

The deflection of a laser beam traveling through a modulated electric field is measured using phase-sensitive detection to place an upper bound on photon charge. An upper limit of $10^{-14}e$ is obtained. The experiment involves a number of…

光学 · 物理学 2012-09-11 A. Hankins , C. Rackson , W. J. Kim

The electric microfield distribution at charged particles is studied for two-component electron-ion plasmas using molecular dynamics simulation and theoretical models. The particles are treated within classical statistical mechanics using…

等离子体物理 · 物理学 2009-11-11 H. B. Nersisyan , C. Toepffer , G. Zwicknagel

Hypothetical particles with tiny electric charges (millicharged particles or MCPs) can be produced in electron-positron annihilation if kinematically allowed. Typical searches for them at $e^+e^-$ colliders exploit a signature of a single…

高能物理 - 唯象学 · 物理学 2023-08-09 Dmitry Gorbunov , Dmitry Kalashnikov , Pavel Pakhlov , Timofey Uglov

Weak magnetic monopoles with a continuum of charges less than the minimum implied by Dirac's quantization condition may be possible in non-associative quantum mechanics. If a weakly magnetically charged proton in a hydrogen atom perturbs…

高能物理 - 理论 · 物理学 2018-11-21 Martin Bojowald , Suddhasattwa Brahma , Umut Buyukcam , Jonathan Guglielmon , Martijn van Kuppeveld

Results of experimental studies of electric explosion, in water, of foils made of extremely pure materials are presented. New chemical elements detected both by spectroscopic measurements during the electric discharge and by a…

等离子体物理 · 物理学 2007-05-23 L. I. Urutskoev , V. I. Liksonov , V. G. Tsinoev

A novel kind of electron beam sustained discharge is presented in which a 12keV electron beam is combined with a 2.45GHz microwave power to excite argon gas at atmospheric pressure in a continuous mode of operation. Optical emission…

等离子体物理 · 物理学 2015-11-30 T. Dandl , H. Hagn , A. Neumeier , J. Wieser , A. Ulrich

A short account of the physics of electrical discharges in gases is given in view of its historical evolution and application to planetary atmospheres. As such it serves as an introduction to the articles on particular aspects of electric…

空间物理 · 物理学 2008-04-10 R. A. Treumann , Z. Klos , M. Parrot

The conditions for the cancellation of one loop contributions to vacuum energy (both U.V. divergent and finite) coming from the known (Standard Model) fields and the field associated with the hypothetical 750 Gev diphoton excess are…

We show that higher-order vacuum polarization would contribute a measureable net charge to atoms, if the charges of electrons and positrons do not balance precisely. We obtain the limit $|Q_e+Q_{\bar e}| < 10^{-18} e$ for the sum of the…

高能物理 - 唯象学 · 物理学 2008-11-26 B. Mueller , M. H. Thoma

During internal discharge (electrical breakdown by field emission transmission) thin symmetric capacitors accelerate slightly towards the anode; an anomaly that does not appear obvious using standard physics. Various thicknesses of…

应用物理 · 物理学 2019-06-18 Ankur S. Bhatt , F. M. Becker

We present cross sections for the production of the lightest supersymmetric particle as a neutralino state in the minimal supersymmetric standard model at electron-photon colliders. The lightest supersymmetric particle mass is taken at a…

高能物理 - 唯象学 · 物理学 2009-10-22 Heinz König , K. A. Peterson

The search for electric dipole moments of particles in storage rings requires the development of dedicated deflector elements with electrostatic fields. In these rings, electric deflectors shall be used as bending elements for the charged…

仪器与探测器 · 物理学 2019-04-25 K. Grigoryev , F. Rathmann , A. Stahl , H. Ströher

We propose a new experiment sensitive to the detection of millicharged particles produced at the $30$ GeV proton fixed-target collisions at J-PARC. The potential site for the experiment is B2 of the Neutrino Monitor building, $280$ m away…

We study for a dielectric particle the effect of surplus electrons on the anomalous scattering of light arising from the transverse optical phonon resonance in the particle's dielectric constant. Excess electrons affect the polarizability…

等离子体物理 · 物理学 2015-06-05 R. L. Heinisch , F. X. Bronold , H. Fehske

Recently, a search for milli-charged particles produced at the LHC has been proposed. The experiment, named milliQan, is expected to obtain sensitivity to charges of $10^{- 1} - 10^{-3}e$ for masses in the 0.1 - 100 GeV range. The detector…

仪器与探测器 · 物理学 2018-11-27 Jae Hyeok Yoo