Direct search for solar axions by using strong magnetic field and X-ray detectors

Moriyama, S.; Minowa, M.; Namba, T.; Inoue, Y.; Takasu, Yuko; Yamamoto, A.

doi:10.1016/s0370-2693(98)00766-7

Cited by 158 publications

(190 citation statements)

References 17 publications

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“…Early helioscope searches were performed in Brookhaven [40] and Tokyo [41,42]. Solar axions could also transform in electric crystal fields, but the limits obtained by SOLAX [43], COSME [44], and DAMA [45] are less restrictive and require a solar axion luminosity exceeding (15) and (16), i.e., these limits are not self-consistent.…”

Section: Searches For Solar Axionsmentioning

confidence: 99%

Astrophysical Axion Bounds

Raffelt

2001

Dark Matter in Astro- And Particle Physics

121

200

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Summary. Axion emission by hot and dense plasmas is a new energy-loss channel for stars. Observational consequences include a modification of the solar sound-speed profile, an increase of the solar neutrino flux, a reduction of the helium-burning lifetime of globular-cluster stars, accelerated white-dwarf cooling, and a reduction of the supernova SN 1987A neutrino burst duration. We review and update these arguments and summarize the resulting axion constraints.

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Section: Searches For Solar Axionsmentioning

confidence: 99%

Astrophysical Axion Bounds

Raffelt

2001

Dark Matter in Astro- And Particle Physics

121

200

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“…More recently, the Tokyo axion helioscope [20] of L = 2.3 m and B = 3.9 T has provided the limit g 10 < 6.0 at 95% CL for m a < ∼ 0.03 eV (vacuum) and g 10 < 6.8-10.9 for m a < ∼ 0.3 eV (using a variable-pressure buffer gas) [21]. Limits from crystal detectors [22,23,24] are much less restrictive.…”

mentioning

confidence: 99%

First Results from the CERN Axion Solar Telescope

Zioutas¹,

Andriamonje²,

Arsov³

et al. 2005

Phys. Rev. Lett.

327

235

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Hypothetical axion-like particles with a two-photon interaction would be produced in the Sun by the Primakoff process. In a laboratory magnetic field ("axion helioscope") they would be transformed into X-rays with energies of a few keV. Using a decommissioned LHC test magnet, CAST ran for about 6 months during 2003. The first results from the analysis of these data are presented here. No signal above background was observed, implying an upper limit to the axion-photon coupling gaγ < 1.16 × 10 −10 GeV −1 at 95% CL for ma < ∼ 0.02 eV. This limit, assumption-free, is comparable to the limit from stellar energy-loss arguments and considerably more restrictive than any previous experiment over a broad range of axion masses.

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“…Following this experiment, the Tokyo Axion Helioscope continued the search for axions using the same method with much improved sensitivity [15][16][17]. At present, the most sensitive axion helioscope is the CERN Axion Solar Telescope (CAST).…”

Section: The Detection Of Solar Axions In the Cast Experimentsmentioning

confidence: 99%

“…Such axions would have a continuous energy spectrum peaked near the mean energy of 4.2 keV and dying off above ∼10 keV. Most of the experiments that have been designed to search for these axions are based on the coherent axion-to-photon reconversion in a laboratory transverse magnetic field (the axion helioscope method [11][12][13][14][15][16][17][18][19][20][21]), or in the intense Coulomb field of nuclei in a crystal lattice of the detector (the Bragg scattering technique [22][23][24][25][26]). …”

Section: Introductionmentioning

confidence: 99%

Search for 14.4 keV solar axions emitted in the M1-transition of⁵⁷Fe nuclei with CAST

Andriamonje¹,

Aune²,

Autiero

et al. 2009

J. Cosmol. Astropart. Phys.

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Abstract. We have searched for 14.4 keV solar axions or more general axion-like particles (ALPs), that may be emitted in the M1 nuclear transition of 57 Fe, by using the axion-to-photon conversion in the CERN Axion Solar Telescope (CAST) with evacuated magnet bores (Phase I). From the absence of excess of the monoenergetic X-rays when the magnet was pointing to the Sun, we set model-independent constraints on the coupling constants of pseudoscalar particles that couple to two photons and to a nucleon g aγ | − 1.19 g 0 aN + g 3 aN | < 1.36 × 10 −16 GeV −1 for m a < 0.03 eV at the 95% confidence level.

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Direct search for solar axions by using strong magnetic field and X-ray detectors

Cited by 158 publications

References 17 publications

Astrophysical Axion Bounds

Astrophysical Axion Bounds

First Results from the CERN Axion Solar Telescope

Search for 14.4 keV solar axions emitted in the M1-transition of⁵⁷Fe nuclei with CAST

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Direct search for solar axions by using strong magnetic field and X-ray detectors

Cited by 158 publications

References 17 publications

Astrophysical Axion Bounds

Astrophysical Axion Bounds

First Results from the CERN Axion Solar Telescope

Search for 14.4 keV solar axions emitted in the M1-transition of57Fe nuclei with CAST

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Product

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Search for 14.4 keV solar axions emitted in the M1-transition of⁵⁷Fe nuclei with CAST