Results 1 to 10 of about 467 (135)
The low-energy effective theory of axions and ALPs [PDF]
Journal of High Energy Physics, 2021 Abstract Axions and axion-like particles (ALPs) are well-motivated low-energy relics of high-energy extensions of the Standard Model, which interact with the known particles through higher-dimensional operators suppressed by the mass scale Λ of the new-physics sector.
Martin Bauer +2 more
exaly +7 more sources
Aspects of Axions and ALPs Phenomenology
Journal of Physics: Conference Series, 2023 Abstract The physics of axions and axion-like particles (ALPs) is enjoying an incredibly productive period, with many new experimental proposals, theoretical idea, and original astrophysical and cosmological arguments which help the search effort.
Maurizio Giannotti
exaly +3 more sources
Supernova Muons: New Constraints on Z′ Bosons, Axions and ALPs [PDF]
Journal of High Energy Physics, 2021 Abstract New light particles produced in supernovae can lead to additional energy loss and a consequent deficit in neutrino production in conflict with the neutrinos observed from Supernova 1987A (SN1987A). Contrary to the majority of previous SN1987A studies, we examine the impact of Z′ bosons, axions, and axion-like particles ...
Djuna Croon +2 more
exaly +5 more sources
Journal of High Energy Physics, 2023 The Effective Field Theory (EFT) Lagrangian for a generic axion-like particle (ALP) has many free parameters, and leaves quite some freedom for the expected phenomenology.
Fernando Arias-Aragón +2 more
doaj +5 more sources
Direct search for dark matter axions excluding ALP cogenesis in the 63- to 67-μeV range with the ORGAN experiment. [PDF]
Sci Adv, 2022 The standard model axion seesaw Higgs portal inflation (SMASH) model is a well-motivated, self-contained description of particle physics that predicts axion dark matter particles to exist within the mass range of 50 to 200 micro–electron volts.
Quiskamp A +5 more
europepmc +5 more sources
Audible axions with a booster: Stochastic gravitational waves from rotating ALPs
SciPost Physics, 2022 Gravitational waves provide a novel way to probe axions or axion-like particles coupled to a dark photon field, even in the absence of couplings to Standard Model particles. In the conventional misalignment mechanism, the generation of an observable stochastic gravitational wave background, however, requires large axion decay constants.
Eric Madge +2 more
exaly +4 more sources
Searches for heavy QCD axions via dimuon final states
Journal of High Energy Physics, 2023 Heavy QCD axions are well-motivated extensions of the QCD axion that address the quality problem while still solving the strong CP problem. Owing to the gluon coupling, critical for solving the strong CP problem, these axions can be produced in ...
Raymond T Co, Soubhik Kumar, Zhen Liu
exaly +2 more sources
Searching for axions and ALPs from string theory
Journal of Physics: Conference Series, 2014 We review searches for closed string axions and axion-like particles (ALPs) in IIB string flux compactifications. For natural values of the background fluxes and TeV scale gravitino mass, the moduli stabilisation mechanism of the LARGE Volume Scenario predicts the existence of a QCD axion candidate with intermediate scale decay constant, f_a ~ 10^9 ...
Andreas Ringwald
exaly +6 more sources
Alternative dark matter candidates: axions and ALPs [PDF]
Proceedings of Neutrino Oscillation Workshop — PoS(NOW2018), 2019 The QCD axion and particles with similar properties (axion-like particles or ALPs) are excellent candidates to be the cold dark matter of the Universe. They are extremely different to the standard WIMP, however. In this talk I presented and highlighted the mostly shocking aspects of axion dark matter, the prospects for its discovery and the recent ...
exaly +2 more sources
Search for Electric Dipole Moments and Axions/ALPS with Polarized Beams in Storage RIngs
Proceedings of 20th International Workshop on Polarized Source, Targets, and Polarimetry — PoS(PSTP2024)The research investigates two main questions in particle physics and cosmology: the fate of antimatter after the Big Bang and the nature of Dark Matter (DM). It focuses on studying Electric Dipole Moments (EDMs) in particles like protons and deuterons using polarized particle beams in a storage ring.
Lenisa, Paolo +3 more
exaly +3 more sources