Results 141 to 150 of about 885 (207)
Physical signatures of fermion-coupled axion dark matter
Journal of High Energy PhysicsIn the presence of axion dark matter, fermion spins experience an “axion wind” torque and an “axioelectric” force. We investigate new experimental probes of these effects and find that magnetized analogs of multilayer dielectric haloscopes can explore ...
Asher Berlin +3 more
doaj +1 more source
Bounds on PBH fraction in a stimulated axion/ALP decay scenario
In this work, we show that stimulated decay of axions or axion-like particles (ALP) in black hole superradiance is an efficient way to find and hunt primordial black holes (PBH). When de Broglie's wavelength of the axion/ ALP is comparable or larger than the black hole horizon radius, a large population of them accumulates in the surroundings of the ...
Garnica, Yadir +2 more
openaire +2 more sources
Probing the gauge-boson couplings of axion-like particle at the LHC and high-luminosity LHC
Journal of High Energy PhysicsIn this work, we calculate the sensitivities on the gauge-boson couplings g aZZ , g aZγ , and g aWW of an axion-like particle (ALP) that one can achieve at the LHC with s $$ \sqrt{s} $$ = 14 TeV and integrated luminosities of 300 fb−1 (current run) and ...
Kingman Cheung +3 more
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Shedding light on the axion - One particle solving two fundamental problems
, 2022 Very lightweight and feebly interacting new bosons like the axion, originallyintroduced to solve the strong CP problem of QCD, or axion-likeparticles (ALPs) predicted by theories beyond the standard model,have been found to also be viable cold dark ...
Januschek, Friederike
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A Non-Inflationary Axion and ALP Misalignment Mechanism
Based on considerations of quantum gravity, global symmetries which lead to axions as pseudo Nambu-Goldstone bosons after low scale symmetry breaking cannot be exact at the Planck scale. Here, we show that Planck-suppressed terms which yield this symmetry breaking may provide a non-inflationary misalignment mechanism which can generate coherent ...
openaire +2 more sources
Shedding Infrared Light on QCD Axion and ALP Dark Matter with JWST
v1: 15 pages, 6 figures.
Saha, Akash Kumar +4 more
openaire +2 more sources
Searching for exotic scalars at fusion reactors
Journal of High Energy PhysicsPart of the energy created in deuterium-tritium fusion reactors is carried away from plasma by a high-intensity neutron flux, which is then absorbed by the reactor’s inner walls.
Chaja Baruch +5 more
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Laser-assisted Light-by-light scattering in Born-Infeld and axion-like particle theories
Journal of High Energy PhysicsThe precision measurements of well-known light-by-light reactions lead to important insights of nonlinear quantum electrodynamics (QED) vacuum polarization.
Kai Ma, Tong Li
doaj +1 more source
A covariant description of the interactions of axion-like particles and hadrons
Journal of High Energy PhysicsWe present a covariant framework for analyzing the interactions and decay rates of axion-like particles (ALPs) that couple to both gluons and quarks. We identify combinations of couplings that are invariant under quark-field redefinitions, and use them ...
Reuven Balkin +3 more
doaj +1 more source
Ultralight Particle Dark Matter
, 2013 We review the physics case for very weakly coupled ultralight particles beyond the Standard Model, in particular for axions and axion-like particles (ALPs): (i) the axionic solution of the strong CP problem and its embedding in well motivated extensions ...
Ringwald, Andreas
core