Results 51 to 60 of about 41,771 (184)
First Axion Dark Matter Search with Toroidal Geometry [PDF]
, 2017 We report the first axion dark matter search with toroidal geometry. Exclusion limits of the axion-photon coupling $g_{a\gamma\gamma}$ over the axion mass range from 24.7 to 29.1 $\mu$eV at the 95\% confidence level are set through this pioneering search.
Ko, B. R.
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Is the universal string axion the QCD axion? [PDF]
Nuclear Physics B, 2006 We consider the class of effective supergravity theories from the weakly coupled heterotic string in which local supersymmetry is broken by gaugino condensation in a hidden sector, with dilaton stabilization achieved through corrections to the classical dilaton K hler potential. If there is a single hidden condensing (simple) gauge group, the axion is
Gaillard, Mary K., Kain, Ben
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Axion dark matter with thermal friction
Journal of High Energy Physics, 2023 Cosmological evolution of axion field in the early universe might be significantly affected by a thermal friction induced by the axion coupling to thermalized hidden sector.
Kiwoon Choi +3 more
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International Journal of Modern Physics A, 1994 The hypothesis of an 'invisible' axion was made by Misha Shifman and others, approximately thirty years ago. It has turned out to be an unusually fruitful idea, crossing boundaries between particle physics, astrophysics and cosmology. An axion with mass of order 10-5 eV (with large uncertainties) is one of the leading candidates for the dark matter of
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Frontiers in PhysicsThis paper provides a comprehensive overview of the development of flux-driven Josephson Parametric Amplifiers (JPAs) as Quantum Noise Limited Amplifier for axion search experiments conducted at the Center for Axion and Precision Physics Research (CAPP ...
Sergey V. Uchaikin +16 more
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Implications of protecting the QCD axion in the dual description
Journal of High Energy Physics, 2023 The QCD axion can be formulated in a dual description as a massive 2-form field. In this picture, the QCD axion quality problem translates into the question if there are additional 3-forms coupled to the axion other than the QCD 3-form that emerges at ...
Gongjun Choi, Jacob Leedom
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Axion Searches at the CERN SPS: From Their Dawn to Current Prospects
Condensed MatterThis mini-review traces the evolution of axion searches at the CERN Super Proton Synchrotron (SPS), beginning with the early proposal by Guido Barbiellini in 1982 and culminating in the recent advances of the NA62 and NA64 experiments.
Paolo Crivelli, Martina Mongillo
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Wave propagation in axion electrodynamics
, 2007 In this paper, the axion contribution to the electromagnetic wave propagation is studied. First we show how the axion electrodynamics model can be embedded into a premetric formalism of Maxwell electrodynamics.
C. Adam +17 more
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AXION-ELECTROMAGNETIC WAVES [PDF]
Modern Physics Letters A, 2013 We extend the duality symmetry between the electric and the magnetic fields to the case in which an additional axion-like term is present, and we derive the set of Maxwell equations that preserves this symmetry. This new set of equations allows for a gauge symmetry extending the ordinary symmetry in the classical electrodynamics.
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Collisions of Dark Matter Axion Stars with Astrophysical Sources
, 2017 If QCD axions form a large fraction of the total mass of dark matter, then axion stars could be very abundant in galaxies. As a result, collisions with each other, and with other astrophysical bodies, can occur.
Eby, Joshua +4 more
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