Results 11 to 20 of about 2,730 (184)

Audible axions

Journal of High Energy Physics, 2019
Conventional approaches to probing axions and axion-like particles (ALPs) typically rely on a coupling to photons. However, if this coupling is extremely weak, ALPs become invisible and are effectively decoupled from the Standard Model. Here we show that
Camila S. Machado, Wolfram Ratzinger, Pedro Schwaller, Ben A. Stefanek   +3 more
doaj   +5 more sources

Constraints on Axions and Axionlike Particles from Fermi Large Area Telescope Observations of Neutron Stars

Physical Review D, 2016
We present constraints on the nature of axions and axionlike particles (ALPs) by analyzing gamma--ray data from neutron stars using the Fermi Large Area Telescope.
Berenji, Bijan, Gaskins, Jennifer, Meyer, Manuel   +2 more
core   +3 more sources

Production and Detection of Axion-Like Particles in a HERA Dipole Magnet - Letter-of-Intent for the ALPS experiment - [PDF]

, 2007
Recently, the PVLAS collaboration has reported evidence for an anomalous rotation of the polarization of light in vacuum in the presence of a transverse magnetic field. This may be explained through the production of a new light spin-zero (axion-like) neutral particle coupled to two photons.
Klaus Ehret, Maik Frede, Ernst-Axel Knabbe, Dietmar Kracht, A. Lindner, N. T. Meyer, D. Notz, Andreas Ringwald, Wiedemann, Guenter   +8 more
openalex   +4 more sources

Audible axions with a booster: Stochastic gravitational waves from rotating ALPs [PDF]

SciPost Physics, 2022
Eric Madge, Wolfram Ratzinger, Daniel Schmitt, Pedro Schwaller   +3 more
openalex   +3 more sources

Axions and ALPs

, 2016
Ringwald, Andreas
openalex   +3 more sources

A global analysis of axion-like particle interactions using SMEFT fits

Journal of High Energy Physics, 2023
In the presence of axions or axion-like particles (ALPs) that couple to the Standard Model via dimension-five interactions, dimension-six SMEFT interactions are generated via renormalization-group evolution.
Anke Biekötter, Javier Fuentes-Martín, Anne Mareike Galda, Matthias Neubert   +3 more
doaj   +1 more source

New bounds on axion-like particles from MicroBooNE

Journal of High Energy Physics, 2022
Neutrino experiments lie at the edge of the intensity frontier and therefore can be exploited to search for new light particles weakly coupled to the visible sector.
Pilar Coloma, Pilar Hernández, Salvador Urrea   +2 more
doaj   +1 more source

Hilbert series for ALP EFTs

Journal of High Energy Physics, 2023
Axions and axion-like particles (ALPs) are ubiquitous in popular attempts to solve supercalifragilisticexpialidocious puzzles of Nature. A widespread and vivid experimental programme spanning a vast range of mass scales and decades of couplings strives ...
Christophe Grojean, Jonathan Kley, Chang-Yuan Yao   +2 more
doaj   +1 more source

Naturally astrophobic QCD axion

Journal of High Energy Physics, 2023
We present a QCD axion model where the couplings of the axion to nucleons, electrons, and muons are naturally suppressed because of the appropriate choice of the Peccei-Quinn charges of the Standard Model fermions.
Marcin Badziak, Keisuke Harigaya
doaj   +1 more source

Axion-meson mixing in light of recent lattice η–η′ simulations and their two-photon couplings within U(3) chiral theory

Journal of High Energy Physics, 2023
We study the mixing of the QCD/QCD-like axion and light-flavor mesons π 0, η, η′ within the framework of U(3) chiral perturbation theory up to next-to-leading order in this work. The axion-meson mixing formulas are calculated order by order in the U(3) δ-
Rui Gao, Zhi-Hui Guo, J. A. Oller, Hai-Qing Zhou   +3 more
doaj   +1 more source