The cern axion solar telescope (CAST)

Aalseth, Craig E.; Arık, E.; Autiero, D.; Avigone, F.T.; Barth, K.; Bowyer, S.M.; Bräuninger, H.; Brodzinski, R. L.; Carmona, J. M.; Cebrián, S.; Celebi, G.; Çetin, S. A.; Collar, J. I.; Creswick, R.; Delbart, A.; Delattre, M.; DiLella, L.; Oliveira, Rui de; Eleftheriadis, C.; Erdutan, N.; Fanouakis, G.; Farach, Horácio A.; Fiorini, C.; Geralis, T.; Giomataris, I.; Girard, T.A.; Gninenko, S.; Голубев, Н.; Hassinoff, M.; Hoffmann, D.; Irastorza, I.G.; Jacoby, J.; Jeanneau, Fabien; Knopf, Michael A.; Kovzelev, A.; Kotthaus, R.; Krčmar, M.; Krečak, Z.; Lakić, B.; Liolios, A.; Ljubičić, A.; Lütz, G.; Longoni, A.; Luzón, G.; Mailov, A.; Матвеев, В.А.; Miley, H.S.; Morales, A. Ramirez; Morales, John; Mutterer, M.; Nikolaidis, A.; Nussinov, S.; Velasquez, A. Ortiz; Pitts, W.K.; Placci, A.; Postoev, V. E.; Raffelt, Georg G.; Riege, H.; Sampieto, M.; Sarsa, M.L.; Savvidis, I.; Stipčević, M.; Thomas, C.W.; Thompson, Randall C.; Valco, P.; Villar, J.A.; Villerme, B.; Walckiers, L.; Wilcox, Wayne; Zachariadou, K.; Zioutas, K.

doi:10.1016/s0920-5632(02)80102-5

Cited by 15 publications

(18 citation statements)

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“…The existing consensus is that visible QCD axions, i.e., those with decay constants at or below the weak scale, have long been excluded by laboratory searches [11,12], such as beam dump experiments, rare meson decays, and nuclear de-excitations. 1 This has motivated the formulation of invisible axion models [17][18][19][20], which, combined with further astrophysical bounds from stellar evolution, CMB and BBN, redirected experimental efforts to extremely weakly coupled axions (f a 10 9 GeV) [21][22][23][24][25][26][27][28][29][30][31][32], which are ultra-light (m a 10 −3 eV), and could be non-thermal dark matter [33][34][35].…”

Section: Introductionmentioning

confidence: 99%

A viable QCD axion in the MeV mass range

Alves

Weiner

2018

J. High Energ. Phys.

107

120

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The QCD axion is one of the most compelling solutions of the strong CP problem. There are major current efforts into searching for an ultralight, invisible axion, which is believed to be the only phenomenologically viable realization of the QCD axion. Visible axions with decay constants at or below the electroweak scale are believed to have been long excluded by laboratory searches.Considering the significance of the axion solution to the strong CP problem, we revisit experimental constraints on QCD axions in the O(10 MeV) mass window. In particular, we find a variant axion model that remains compatible with existing constraints. This model predicts new states at the GeV scale coupled hadronically, and a variety of low-energy axion signatures, such as rare meson decays, nuclear de-excitations via axion emission, and production in e + e − annihilation and fixed target experiments. This reopens the possibility of solving the strong CP problem at the GeV scale.

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Section: Introductionmentioning

confidence: 99%

A viable QCD axion in the MeV mass range

Alves

Weiner

2018

J. High Energ. Phys.

107

120

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“…The CERN Axion Solar Telescope (CAST) is a converted LHC test magnet (9 T, 10 m) mounted on a platform to track the sun ±8 0 vertically, and ±40 0 horizontally [7], [8], [9]. There are X-ray detectors on both ends on both parallel bores through the magnet.…”

Section: The Cast Helioscopementioning

confidence: 99%

The cern axion solar telescope (CAST): an update

Andriamonje

Arsov

Aune

et al. 2005

Nuclear Physics B - Proceedings Supplements

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“…To meet the various objectives we will concentrate on Micromegas technology. The European experiment to search for solar axions [27,28], CAST, is using the Micromegas idea, and several successful experiments have also been using such charge readout [29,30]. MI-CROMEGAS (MICROMEsh GAseous Structure) [31, 32,33] is a gaseous twostage parallel-plate avalanche chamber design consisting of a narrow 50 − 100µm amplification gap and a thick conversion region, separated by a light conducting micromesh, usually made of electroformed nickel or copper.…”

Section: The Detectormentioning

confidence: 99%

Neutrino properties studied with a triton source and a large spherical TPC

Giomataris

Vergados

2004

Nuclear Instruments and Methods in Physics Research Section A:

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Abstract. Abstract The purpose of the present paper is to study the neutrino properties as they may appear in the low energy neutrinos emitted in triton decay:with maximum neutrino energy of 18.6 KeV . The technical challenges to this end can be summarized as building a very large TPC capable of detecting low energy recoils, down to a few 100 eV, within the required low background constraints. More specifically We propose the development of a spherical gaseous TPC of about 10-m in radius and a 200 Mcurie triton source in the center of curvature. One can list a number of exciting studies, concerning fundamental physics issues, that could be made using a large volume TPC and low energy antineutrinos: 1) The oscillation length involving the small angle δ = sin 2θ13 in the νe disappearance experiment is comparable to the length of the detector. Measuring the counting rate of neutrino-electron elastic scattering as function of the distance of the source will give a precise and unambiguous measurement of the oscillation parameters free of systematic errors. In fact first estimations show that a sensitivity of a few percent for the measurement of the above angle.2) The low energy detection threshold offers a unique sensitivity for the neutrino magnetic moment which is about two orders of magnitude beyond the current experimental limit of 10 −10 µB. 3) Scattering at such low neutrino energies has never been studied and any departure from the expected behavior may be an indication of new physics beyond the standard model. We present a summary of various theoretical studies and possible measurements.

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The cern axion solar telescope (CAST)

Cited by 15 publications

References 0 publications

A viable QCD axion in the MeV mass range

A viable QCD axion in the MeV mass range

The cern axion solar telescope (CAST): an update

Neutrino properties studied with a triton source and a large spherical TPC

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