Results 11 to 20 of about 20,673 (286)

Search for an axion-like particle in radiative J/ψ decays

open access: yesPhysics Letters B, 2023
We search for an axion-like particle (ALP) a through the process ψ(3686)→π+π−J/ψ, J/ψ→γa, a→γγ in a data sample of (2.71±0.01)×109 ψ(3686) events collected by the BESIII detector.
M. Ablikim   +599 more
doaj   +11 more sources

Generation and search of axion-like light particle using intense crystalline field

open access: yesPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2011
Intense electric field $\sim 10^{10}-10^{11}$ V/cm in crystal has been known for a long time and has wide applications. We study the conversion of axion-like light particle and photon in the intense electric field in crystal.
Ahmed   +27 more
core   +3 more sources

PASSAT: particle accelerator helioScopes for Slim Axion-like-particle deTection [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We propose a novel method to search for axion-like particles (ALPs) at particle accelerator experiments. ALPs produced at the target via the Primakoff effect subsequently enter a region with a magnetic field, where they are converted to photons that are ...
Walter M. Bonivento   +2 more
doaj   +3 more sources

Supernova 1987A constraints on sub-GeV dark sectors, millicharged particles, the QCD axion, and an axion-like particle

open access: yesJournal of High Energy Physics, 2018
We consider the constraints from Supernova 1987A on particles with small couplings to the Standard Model. We discuss a model with a fermion coupled to a dark photon, with various mass relations in the dark sector; millicharged particles; dark-sector ...
Jae Hyeok Chang   +2 more
doaj   +3 more sources

Revisiting the analysis of axion-like particles with the Fermi-LAT gamma-ray observation of NGC1275

open access: yesPhysics Letters B, 2021
In this work, we re-analyze the Fermi-LAT observation of NGC 1275 to search for axion-like particle (ALP) effects and constrain ALP parameters. Instead of fitting the observed spectrum with ALP models, we adopt an alternative method for the analysis of ...
Ji-Gui Cheng   +4 more
doaj   +3 more sources

Axion-like particle oscillations [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2022
Abstract String theory compactifications may generate many light axion-like particles (ALPs) with weak couplings to electromagnetism. In general, a large number of ALPs may exist, with a linear combination having a potentially observable coupling to electromagnetism.
openaire   +3 more sources

Axion-like particles at future colliders [PDF]

open access: yesThe European Physical Journal C, 2019
Axion-like particles (ALPs) are pseudo Nambu-Goldstone bosons of spontaneously broken global symmetries in high-energy extensions of the Standard Model (SM). This makes them a prime target for future experiments aiming to discover new physics which addresses some of the open questions of the SM. While future high-precision experiments can discover ALPs
Bauer, Martin   +3 more
openaire   +5 more sources

Collider probes of axion-like particles [PDF]

open access: yesJournal of High Energy Physics, 2017
Axion-like particles (ALPs), which are gauge-singlets under the Standard Model (SM), appear in many well-motivated extensions of the SM. Describing the interactions of ALPs with SM fields by means of an effective Lagrangian, we discuss ALP decays into SM particles at one-loop order, including for the first time a calculation of the $a\to $ decay ...
Martin Bauer   +2 more
openaire   +5 more sources

Electroweak precision test of axion-like particles

open access: yesJournal of High Energy Physics, 2023
We study the contributions of an axion-like particle to the electroweak precision observables. The particle is assumed to couple with the standard model electroweak gauge bosons.
Masashi Aiko, Motoi Endo
doaj   +1 more source

Oscillon of ultra-light axion-like particle [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2020
Ultra-light axion-like particle (ULAP) is one of attractive candidates for cold dark matter. Because the de Broglie wavelength of ULAP with mass $\sim 10^{-22} {\rm eV}$ is $\mathcal{O}({\rm kpc})$, the suppression of the small scale structure by the uncertainty principle can solve the core-cusp problem.
Kawasaki, Masahiro   +2 more
openaire   +2 more sources

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