Dark photons pdf
WebWe study the propagation of photons in a homogeneous axion dark matter background. When the axion decay into two photons is stimulated, the photon field exhibits a parametric instability in a small bandwidth centered on one half of the axion mass. We estimate analytically the enhancement for both coherent and non-coherent axion fields and we … WebData, plots and code for constraints on axions, axion-like particles, and dark photons - GitHub - cajohare/AxionLimits: Data, plots and code for constraints on axions, axion-like particles, and dark photons ... Plot of dimensionless coupling with projections (pdf, png) Axion-electron coupling. Data files Plot (pdf, png)
Dark photons pdf
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WebIn the interaction basis, SM photons & dark photons oscillate between each other. At high momentum transfer /low M X, the U(1) symmetry is restored and the dark matter gets a … WebThe dark photon (also hidden, heavy, para-, or secluded photon) is a hypothetical hidden sector particle, proposed as a force carrier similar to the photon of electromagnetism but potentially connected to dark matter. [1]
Webneutrino, and dark matter particles. Valid if charge asymmetries produced by different particles are not anticorrelated. 3KOBYCHEV 05 considers a varietyof observable … WebApr 14, 2024 · underwater optical wireless communication; high sensitivity; photon counting; single photon detection; bule-green laser 1. Introduction The ocean, covering approximately 71% of the earth’s surface, is rich in biological and mineral resources.
WebJan 1, 2016 · Massless and massive dark photons, whose theoretical frameworks as well as experimental signatures are quite distinct, give rise to dark sectors with different phenomenological and... WebThis model possesses two important channels for dark matter production, de-pending on the relation between the dark photon mass and the DM mass [38]: for m ˜ > M A0, we have the s-channel annihilation into SM particles (left diagram in Fig.1) and on-shell production of two dark photons A0(right diagram in Fig.1), the latterbeingtypicallydominant.
WebDark Photon Searches with ATLAS 7 pp → Z D→l+l- only requires vector portal pp → h → Z Z D→2l+ 2l- only requires vector portal pp → h → Z DZ D→2l+ 2l- suppressed in vector …
WebWe invoke a different theory, the self-interacting dark matter model or SIDM, to show that dark matter self-interactions thermalize the inner halo, which ties ordinary dark matter … how to say intuitionWebNov 18, 2024 · Starting from the Schwinger Lagrangian, we derive the equations of motion for dark photons interacting with the Standard Model photon through gauge kinetic … how to say inveterateWebNov 18, 2024 · The theory of dark photons assumes that the particles can spontaneously turn into normal photons with some small probability, but this conversion can be enhanced when dark photons enter an ionized gas satisfying a resonance condition. The condition amounts to the gas having a certain density, which is determined by the dark photon’s … north jewelersWebDec 12, 2024 · Dark matter could be made up of ultralight dark photons that heated up our universe: this is a new scenario proposed in a study recently published in Physical … north jettyWeban excess of energetic photons in the nearby dwarf galaxy Draco. Because Draco is comprised mostly of dark matter, this could be an exciting result provided that the excess is not an artifact of our measuring device. One possible artifact we need to rule out is that the slight excess of noise in the same region directly leads to the excess of ... how to say invade in latinWebAug 1, 2024 · Leonard S. Kisslinger, Debasish Das In this review of Dark Matter we review dark matter as sterile neutrinos, fermions, with their present and possibly future detection via neutrino Oscillations. We review the creation of Dark Matter via interactions with the Dark Energy (quintesence) field. north jetties south carolinaWebApr 20, 2024 · The most precise measurement of the fine structure constant to date has all but ruled out the existence of dark photons, the proposed twins of ordinary light … north jetty beach oregon