classical vector field turns out to induce drastic changes in the particle normalization, which rule out a significant parameter region of the generic vector dark matter model. DOI: 10.1103/PhysRevD.106.095027
Particle dispersion in the classical vector dark matter background
Nov 23, 2022 · In this paper, we address this issue in the vector dark matter background with the randomly distributed polarizations or a fixed polarization to the single direction. The observations associated with particle dispersion can give constraints on new light Abelian gauge boson models.
9.5: The Klien-Gordon and Relativistic Schrödinger Equations
Jan 29, 2022 · (a) The free-particle dispersion relation resulting from the Klein-Gordon and Dirac equations, and (b) the scheme of creation of a particle-antiparticle pair from the vacuum.
Particle Dispersion. Random Flight. - Lagrangian dispersion. As an exanlple, we examine the randoin flight model. which assumes that the accel-erations have a stochastic component and use Newton's equations. X = V d t. V = Adt +PdR. where A is the acceleration produced by deterministic (or large-scale) forces.
Universal alignment in turbulent pair dispersion - Nature
Jul 14, 2023 · In this paper, we propose a new approach for characterizing turbulent pair dispersion. Specifically, we focus on the angle, θ, formed between the relative position and relative velocity vectors...
The dispersion of nano- to micron-sized particles through complex media underpins the e cacy of practical applications including drug delivery [1, 2], oil exploration and production [3], and separations processes such as gel electrophoresis [4] and chromatography [5].
Understanding plasmon dispersion in nearly free electron …
May 20, 2020 · This work completes our understanding of the plasmon dispersion in realistic metals, such as Cs, where a negative plasmon dispersion has been observed. We find only positive plasmon dispersion in jellium at the density for Cs.
Many synthetic quantum systems allow particles to have dispersion relations that are neither linear nor quadratic functions. Here, we explore single-particle scattering in general spatial dimension D 1 when the density of states diverges at a specific energy.
10 - Particle dispersion and deposition - Cambridge University …
Nov 5, 2013 · Prologue. Particles entrained in a turbulent fluid are dispersed by velocity fluctuations; they assume a motion that is related to the fluid turbulence. If the suspension flows through a conduit, deposition on a wall depends on the particle turbulence.
Dispersion of particles in two-dimensional circular vortices
Mar 3, 2020 · Therefore, in this article, we analyze the kinematics of particle dispersion (simulating advective–diffusive processes) in the presence of a) a rigid-body rotation vortex (RV) or b) an irrotational vortex (IV).