Results 41 to 50 of about 292,949 (385)
Search for Low-Mass Axion Dark Matter with ABRACADABRA-10 cm. [PDF]
Physical Review Letters, 2021 Two of the most pressing questions in physics are the microscopic nature of the dark matter that comprises 84% of the mass in the Universe and the absence of a neutron electric dipole moment.
C. Salemi +12 more
semanticscholar +1 more source
Probing relativistic axions from transient astrophysical sources
Physics Letters B, 2022 Emission of relativistic axions from transient sources, such as axion star explosions, can lead to observable signatures. We show that axion bursts from collapsing axion stars can be detectable over the wide range of axion masses 10−15eV≲m≲10−7eV in ...
Joshua Eby +3 more
doaj +1 more source
Astrophysical Axion Bounds: The 2024 Edition [PDF]
Proceedings of 1st General Meeting and 1st Training School of the COST Action COSMIC WSIPers — PoS(COSMICWISPers)We review the current status of astrophysical bounds on QCD axions, primarily based on the observational effects of nonstandard energy losses on stars, including black-hole superradiance.
Andrea Caputo, G. Raffelt
semanticscholar +1 more source
Dark matter from an even lighter QCD axion: trapped misalignment [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 We show that dark matter can be accounted for by an axion that solves the strong CP problem, but is much lighter than usual due to a Z 𝒩 symmetry. The whole mass range from the canonical QCD axion down to the ultra-light regime is allowed, with 3 ≤ 𝒩 ...
Luca Di Luzio +3 more
semanticscholar +1 more source
Axions and SN 1987A: Axion trapping [PDF]
Physical Review D, 1990 If an axion of mass between about 10(exp -3) eV and 1 eV exists, axion emission would have significantly affected the cooling of the nascent neutron star associated with SN 1987A. For an axion of mass less than about 10(exp -2) eV, axions produced deep inside the neutron star simply stream out; in a previous paper this case has been addressed ...
, Burrows, , Ressell, , Turner
openaire +2 more sources
Stochastic axion dark matter in axion landscape [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 We study the stochastic axion dark matter scenario in the axion landscape, where one of the axions is light and stable and therefore explains dark matter. If the axion mass at the potential is a typical value of the curvature along the direction, the potential can be well approximated by a quadratic mass term.
Nakagawa, Shota +2 more
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Axions and axion-like particles [PDF]
Nuclear Physics B - Proceedings Supplements, 2003 I review the theoretical motivation for the axion and present an update of the experimental status of axion searches. I finally comment on some aspects of the physics of axion-like particles.
openaire +2 more sources
First axion dark matter search with toroidal geometry [PDF]
, 2017 We firstly report an axion haloscope search with toroidal geometry. In this pioneering search, we exclude the axion-photon coupling $g_{a\gamma\gamma}$ down to about $5\times10^{-8}$ GeV$^{-1}$ over the axion mass range from 24.7 to 29.1 $\mu$eV at a 95\%
Choi, J. +4 more
core +2 more sources
Extended Search for the Invisible Axion with the Axion Dark Matter Experiment. [PDF]
Physical Review Letters, 2019 This Letter reports on a cavity haloscope search for dark matter axions in the Galactic halo in the mass range 2.81-3.31 μeV. This search utilizes the combination of a low-noise Josephson parametric amplifier and a large-cavity haloscope to achieve ...
T. Braine +42 more
semanticscholar +1 more source
Axion dark matter: How to see it? [PDF]
Science Advances, 2021 The axion is a highly motivated elementary particle that could address two fundamental questions in physics—the strong charge-parity (CP) problem and the dark matter mystery.
Y. Semertzidis, S. Youn
semanticscholar +1 more source