First results on the search for chameleons with the KWISP detector at CAST

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dc.WoS.categoriesAstronomy & Astrophysicsen_US
dc.authorid0000-0001-5050-8441en_US
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2020-05-08T14:15:53Z
dc.date.available2020-05-08T14:15:53Z
dc.date.issued2019-12
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractWe report on a first measurement with a sensitive opto-mechanical force sensor designed for the direct detection of coupling of real chameleons to matter. These dark energy candidates could be produced in the Sun and stream unimpeded to Earth. The KWISP detector installed on the CAST axion search experiment at CERN looks for tiny displacements of a thin membrane caused by the mechanical effect of solar chameleons. The displacements are detected by a Michelson interferometer with a homodyne readout scheme. The sensor benefits from the focusing action of the ABRIXAS X-ray telescope installed at CAST, which increases the chameleon flux on the membrane. A mechanical chopper placed between the telescope output and the detector modulates the incoming chameleon stream. We present the results of the solar chameleon measurements taken at CAST in July 2017, setting an upper bound on the force acting on the membrane of 80 pN at 95% confidence level. The detector is sensitive for direct coupling to matter 104 <= beta(m) <= 108, where the coupling to photons is locally bound to beta(gamma) <= 10(11). (c) 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1016/j.dark.2019.100367
dc.identifier.issn2212-6864
dc.identifier.scopus2-s2.0-85072162086en_US
dc.identifier.urihttps://hdl.handle.net/11411/2021
dc.identifier.urihttps://doi.org/10.1016/j.dark.2019.100367
dc.identifier.wosWOS:000499696200021en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors50+en_US
dc.publisherElsevieren_US
dc.relation.ispartofPhysics Of The Dark Universeen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectChameleonsen_US
dc.subjectDark energyen_US
dc.subjectOpto-mechanical sensoren_US
dc.subjectInterferometryen_US
dc.titleFirst results on the search for chameleons with the KWISP detector at CAST
dc.typeArticle
dc.volume26en_US

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