Improved search for solar chameleons with a GridPix detector at CAST

V. Anastassopoulos; S. Aune; K. Barth; A. Belov; H. Bräuninger; G. Cantatore; J. M. Carmona; J. F. Castel; S. A. Cetin; F. Christensen; T. Dafni; M. Davenport; A. Dermenev; K. Desch; B. Döbrich; C. Eleftheriadis; G. Fanourakis; E. Ferrer-Ribas; H. Fischer; W. Funk; J. A. García; A. Gardikiotis; J. G. Garza; E. N. Gazis; T. Geralis; I. Giomataris; S. Gninenko; C. J. Hailey; M. D. Hasinoff; D. H.H. Hoffmann; F. J. Iguaz; I. G. Irastorza; A. Jakobsen; J. Jacoby; K. Jakovčić; J. Kaminski; M. Karuza; S. Kostoglou; N. Kralj; M. Krčmar; C. Krieger; B. Lakić; J. M. Laurent; A. Liolios; A. Ljubičić; G. Luzón; M. Maroudas; L. Miceli; S. Neff; I. Ortega; T. Papaevangelou; K. Paraschou; M. J. Pivovaroff; G. Raffelt; M. Rosu; J. Ruz; E. Ruiz Chóliz; I. Savvidis; S. Schmidt; Y. K. Semertzidis; S. K. Solanki; L. Stewart; T. Vafeiadis; J. K. Vogel; M. Vretenar; W. Wuensch; S. C. Yildiz; K. Zioutas; P. Brax

doi:10.1088/1475-7516/2019/01/032

Improved search for solar chameleons with a GridPix detector at CAST

V. Anastassopoulos
, S. Aune
, K. Barth
, A. Belov
, H. Bräuninger
, G. Cantatore
, J. M. Carmona
, J. F. Castel
, S. A. Cetin
, F. Christensen
, T. Dafni
, M. Davenport
, A. Dermenev
, K. Desch
, B. Döbrich
, C. Eleftheriadis
, G. Fanourakis
, E. Ferrer-Ribas
, H. Fischer
, W. Funk

J. A. García, A. Gardikiotis, J. G. Garza, E. N. Gazis, T. Geralis, I. Giomataris, S. Gninenko, C. J. Hailey, M. D. Hasinoff, D. H.H. Hoffmann, F. J. Iguaz, I. G. Irastorza, A. Jakobsen, J. Jacoby, K. Jakovčić, J. Kaminski, M. Karuza, S. Kostoglou, N. Kralj, M. Krčmar, C. Krieger, B. Lakić, J. M. Laurent, A. Liolios, A. Ljubičić, G. Luzón, M. Maroudas, L. Miceli, S. Neff, I. Ortega, T. Papaevangelou, K. Paraschou, M. J. Pivovaroff, G. Raffelt, M. Rosu, J. Ruz, E. Ruiz Chóliz, I. Savvidis, S. Schmidt, Y. K. Semertzidis, S. K. Solanki, L. Stewart, T. Vafeiadis, J. K. Vogel, M. Vretenar, W. Wuensch, S. C. Yildiz, K. Zioutas, P. Brax

School of Physics

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We report on a new search for solar chameleons with the CERN Axion Solar Telescope (CAST). A GridPix detector was used to search for soft X-ray photons in the energy range from 200 eV to 10 keV from converted solar chameleons. No significant excess over the expected background has been observed in the data taken in 2014 and 2015. We set an improved limit on the chameleon photon coupling, β _γ ∼#5.7×10 ¹⁰ for 1<β _m <10 ⁶ at 95% C.L. Improving our previous results by a factor two and for the first time reaching sensitivity below the solar luminosity bound for tachocline magnetic fields up to 12.5 T.

Original language	English
Article number	032
Journal	Journal of Cosmology and Astroparticle Physics
Volume	2019
Issue number	1
DOIs	https://doi.org/10.1088/1475-7516/2019/01/032
State	Published - 16 Jan 2019

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Anastassopoulos, V., Aune, S., Barth, K., Belov, A., Bräuninger, H., Cantatore, G., Carmona, J. M., Castel, J. F., Cetin, S. A., Christensen, F., Dafni, T., Davenport, M., Dermenev, A., Desch, K., Döbrich, B., Eleftheriadis, C., Fanourakis, G., Ferrer-Ribas, E., Fischer, H., ... Brax, P. (2019). Improved search for solar chameleons with a GridPix detector at CAST. Journal of Cosmology and Astroparticle Physics, 2019(1), Article 032. https://doi.org/10.1088/1475-7516/2019/01/032

@article{ffe2f0273bb34833bc2dd5aa11a6a362,

title = "Improved search for solar chameleons with a GridPix detector at CAST",

abstract = " We report on a new search for solar chameleons with the CERN Axion Solar Telescope (CAST). A GridPix detector was used to search for soft X-ray photons in the energy range from 200 eV to 10 keV from converted solar chameleons. No significant excess over the expected background has been observed in the data taken in 2014 and 2015. We set an improved limit on the chameleon photon coupling, β γ ∼\#5.7×10 10 for 1<β m <10 6 at 95\% C.L. Improving our previous results by a factor two and for the first time reaching sensitivity below the solar luminosity bound for tachocline magnetic fields up to 12.5 T.",

author = "V. Anastassopoulos and S. Aune and K. Barth and A. Belov and H. Br{\"a}uninger and G. Cantatore and Carmona, \{J. M.\} and Castel, \{J. F.\} and Cetin, \{S. A.\} and F. Christensen and T. Dafni and M. Davenport and A. Dermenev and K. Desch and B. D{\"o}brich and C. Eleftheriadis and G. Fanourakis and E. Ferrer-Ribas and H. Fischer and W. Funk and Garc{\'i}a, \{J. A.\} and A. Gardikiotis and Garza, \{J. G.\} and Gazis, \{E. N.\} and T. Geralis and I. Giomataris and S. Gninenko and Hailey, \{C. J.\} and Hasinoff, \{M. D.\} and Hoffmann, \{D. H.H.\} and Iguaz, \{F. J.\} and Irastorza, \{I. G.\} and A. Jakobsen and J. Jacoby and K. Jakov{\v c}i{\'c} and J. Kaminski and M. Karuza and S. Kostoglou and N. Kralj and M. Kr{\v c}mar and C. Krieger and B. Laki{\'c} and Laurent, \{J. M.\} and A. Liolios and A. Ljubi{\v c}i{\'c} and G. Luz{\'o}n and M. Maroudas and L. Miceli and S. Neff and I. Ortega and T. Papaevangelou and K. Paraschou and Pivovaroff, \{M. J.\} and G. Raffelt and M. Rosu and J. Ruz and Ch{\'o}liz, \{E. Ruiz\} and I. Savvidis and S. Schmidt and Semertzidis, \{Y. K.\} and Solanki, \{S. K.\} and L. Stewart and T. Vafeiadis and Vogel, \{J. K.\} and M. Vretenar and W. Wuensch and Yildiz, \{S. C.\} and K. Zioutas and P. Brax",

note = "Publisher Copyright: {\textcopyright} 2019 CERN.",

year = "2019",

month = jan,

day = "16",

doi = "10.1088/1475-7516/2019/01/032",

language = "英语",

volume = "2019",

journal = "Journal of Cosmology and Astroparticle Physics",

issn = "1475-7516",

publisher = "Institute of Physics",

number = "1",

}

Anastassopoulos, V, Aune, S, Barth, K, Belov, A, Bräuninger, H, Cantatore, G, Carmona, JM, Castel, JF, Cetin, SA, Christensen, F, Dafni, T, Davenport, M, Dermenev, A, Desch, K, Döbrich, B, Eleftheriadis, C, Fanourakis, G, Ferrer-Ribas, E, Fischer, H, Funk, W, García, JA, Gardikiotis, A, Garza, JG, Gazis, EN, Geralis, T, Giomataris, I, Gninenko, S, Hailey, CJ, Hasinoff, MD, Hoffmann, DHH, Iguaz, FJ, Irastorza, IG, Jakobsen, A, Jacoby, J, Jakovčić, K, Kaminski, J, Karuza, M, Kostoglou, S, Kralj, N, Krčmar, M, Krieger, C, Lakić, B, Laurent, JM, Liolios, A, Ljubičić, A, Luzón, G, Maroudas, M, Miceli, L, Neff, S, Ortega, I, Papaevangelou, T, Paraschou, K, Pivovaroff, MJ, Raffelt, G, Rosu, M, Ruz, J, Chóliz, ER, Savvidis, I, Schmidt, S, Semertzidis, YK, Solanki, SK, Stewart, L, Vafeiadis, T, Vogel, JK, Vretenar, M, Wuensch, W, Yildiz, SC, Zioutas, K & Brax, P 2019, 'Improved search for solar chameleons with a GridPix detector at CAST', Journal of Cosmology and Astroparticle Physics, vol. 2019, no. 1, 032. https://doi.org/10.1088/1475-7516/2019/01/032

TY - JOUR

T1 - Improved search for solar chameleons with a GridPix detector at CAST

AU - Anastassopoulos, V.

AU - Aune, S.

AU - Barth, K.

AU - Belov, A.

AU - Bräuninger, H.

AU - Cantatore, G.

AU - Carmona, J. M.

AU - Castel, J. F.

AU - Cetin, S. A.

AU - Christensen, F.

AU - Dafni, T.

AU - Davenport, M.

AU - Dermenev, A.

AU - Desch, K.

AU - Döbrich, B.

AU - Eleftheriadis, C.

AU - Fanourakis, G.

AU - Ferrer-Ribas, E.

AU - Fischer, H.

AU - Funk, W.

AU - García, J. A.

AU - Gardikiotis, A.

AU - Garza, J. G.

AU - Gazis, E. N.

AU - Geralis, T.

AU - Giomataris, I.

AU - Gninenko, S.

AU - Hailey, C. J.

AU - Hasinoff, M. D.

AU - Hoffmann, D. H.H.

AU - Iguaz, F. J.

AU - Irastorza, I. G.

AU - Jakobsen, A.

AU - Jacoby, J.

AU - Jakovčić, K.

AU - Kaminski, J.

AU - Karuza, M.

AU - Kostoglou, S.

AU - Kralj, N.

AU - Krčmar, M.

AU - Krieger, C.

AU - Lakić, B.

AU - Laurent, J. M.

AU - Liolios, A.

AU - Ljubičić, A.

AU - Luzón, G.

AU - Maroudas, M.

AU - Miceli, L.

AU - Neff, S.

AU - Ortega, I.

AU - Papaevangelou, T.

AU - Paraschou, K.

AU - Pivovaroff, M. J.

AU - Raffelt, G.

AU - Rosu, M.

AU - Ruz, J.

AU - Chóliz, E. Ruiz

AU - Savvidis, I.

AU - Schmidt, S.

AU - Semertzidis, Y. K.

AU - Solanki, S. K.

AU - Stewart, L.

AU - Vafeiadis, T.

AU - Vogel, J. K.

AU - Vretenar, M.

AU - Wuensch, W.

AU - Yildiz, S. C.

AU - Zioutas, K.

AU - Brax, P.

PY - 2019/1/16

Y1 - 2019/1/16

N2 - We report on a new search for solar chameleons with the CERN Axion Solar Telescope (CAST). A GridPix detector was used to search for soft X-ray photons in the energy range from 200 eV to 10 keV from converted solar chameleons. No significant excess over the expected background has been observed in the data taken in 2014 and 2015. We set an improved limit on the chameleon photon coupling, β γ ∼#5.7×10 10 for 1<β m <10 6 at 95% C.L. Improving our previous results by a factor two and for the first time reaching sensitivity below the solar luminosity bound for tachocline magnetic fields up to 12.5 T.

AB - We report on a new search for solar chameleons with the CERN Axion Solar Telescope (CAST). A GridPix detector was used to search for soft X-ray photons in the energy range from 200 eV to 10 keV from converted solar chameleons. No significant excess over the expected background has been observed in the data taken in 2014 and 2015. We set an improved limit on the chameleon photon coupling, β γ ∼#5.7×10 10 for 1<β m <10 6 at 95% C.L. Improving our previous results by a factor two and for the first time reaching sensitivity below the solar luminosity bound for tachocline magnetic fields up to 12.5 T.

UR - https://www.scopus.com/pages/publications/85062290502

U2 - 10.1088/1475-7516/2019/01/032

DO - 10.1088/1475-7516/2019/01/032

M3 - 文章

AN - SCOPUS:85062290502

SN - 1475-7516

VL - 2019

JO - Journal of Cosmology and Astroparticle Physics

JF - Journal of Cosmology and Astroparticle Physics

IS - 1

M1 - 032

ER -

Improved search for solar chameleons with a GridPix detector at CAST

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