Search for chameleons with CAST

CAST Collaboration

doi:10.1016/j.physletb.2015.07.049

Search for chameleons with CAST

CAST Collaboration

Physics Department
University of Patras
Dogus University
Bogazici University
Centre d' Etudes Nucléaires de Saclay (CEA-Saclay)
CERN
Russian Academy of Sciences
Max Planck Institute for Extraterrestrial Physics
University of Trieste
University of Zaragoza
Technical University of Denmark
The University of Chicago
University of Bonn
Aristotle University of Thessaloniki
Demokritos National Centre for Scientific Research
National Technical University of Athens
Columbia University
University of British Columbia
Technische Universität Darmstadt
Goethe University Frankfurt
Ruder Boskovic Institute
University of Rijeka
University of Applied Sciences Karlsruhe
Chem./Materials Science Directorate
Max Planck Institute for Physics (Werner Heisenberg Institute)
Max Planck Institute for Solar System Research
Kyung Hee University
University of California at Irvine
Commissariat à l’énergie atomique et aux énergies alternatives
Boston University
University of Wisconsin-Madison

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

43 Scopus citations

Abstract

In this work we present a search for (solar) chameleons with the CERN Axion Solar Telescope (CAST). This novel experimental technique, in the field of dark energy research, exploits both the chameleon coupling to matter (β_m) and to photons (β_γ) via the Primakoff effect. By reducing the X-ray detection energy threshold used for axions from 1 keV to 400 eV CAST became sensitive to the converted solar chameleon spectrum which peaks around 600 eV. Even though we have not observed any excess above background, we can provide a 95% C.L. limit for the coupling strength of chameleons to photons of β_γ≲10¹¹ for 1<β_m<10⁶.

Original language	English
Pages (from-to)	172-180
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	749
DOIs	https://doi.org/10.1016/j.physletb.2015.07.049
State	Published - 7 Oct 2015
Externally published	Yes

Keywords

CAST
Chameleon
Dark energy
SDD
Tachocline
X-ray

Access to Document

10.1016/j.physletb.2015.07.049

Cite this

@article{dde0795741c843a990e5258074bb265a,

title = "Search for chameleons with CAST",

abstract = "In this work we present a search for (solar) chameleons with the CERN Axion Solar Telescope (CAST). This novel experimental technique, in the field of dark energy research, exploits both the chameleon coupling to matter (βm) and to photons (βγ) via the Primakoff effect. By reducing the X-ray detection energy threshold used for axions from 1 keV to 400 eV CAST became sensitive to the converted solar chameleon spectrum which peaks around 600 eV. Even though we have not observed any excess above background, we can provide a 95\% C.L. limit for the coupling strength of chameleons to photons of βγ≲1011 for 1<βm<106.",

keywords = "CAST, Chameleon, Dark energy, SDD, Tachocline, X-ray",

author = "\{CAST Collaboration\} and V. Anastassopoulos and M. Arik and S. Aune and K. Barth and A. Belov and H. Br{\"a}uninger and G. Cantatore and Carmona, \{J. M.\} and Cetin, \{S. A.\} and F. Christensen and Collar, \{J. I.\} and T. Dafni and M. Davenport and K. Desch and A. Dermenev and C. Eleftheriadis and G. Fanourakis and E. Ferrer-Ribas and P. Friedrich and J. Gal{\'a}n and Garc{\'i}a, \{J. A.\} and A. Gardikiotis and Garza, \{J. G.\} and Gazis, \{E. N.\} and T. Geralis and I. Giomataris and C. Hailey and F. Haug and Hasinoff, \{M. D.\} and Hoffmann, \{D. H.H.\} and Iguaz, \{F. J.\} and Irastorza, \{I. G.\} and J. Jacoby and A. Jakobsen and K. Jakov{\v c}i{\'c} and J. Kaminski and M. Karuza and M. Kavuk and M. Kr{\v c}mar and C. Krieger and A. Kr{\"u}ger and B. Laki{\'c} and Laurent, \{J. M.\} and A. Liolios and A. Ljubi{\v c}i{\'c} and G. Luz{\'o}n and S. Neff and I. Ortega and T. Papaevangelou and Pivovaroff, \{M. J.\}",

note = "Publisher Copyright: {\textcopyright} 2015 The Authors.",

year = "2015",

month = oct,

day = "7",

doi = "10.1016/j.physletb.2015.07.049",

language = "英语",

volume = "749",

pages = "172--180",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Search for chameleons with CAST

AU - CAST Collaboration

AU - Anastassopoulos, V.

AU - Arik, M.

AU - Aune, S.

AU - Barth, K.

AU - Belov, A.

AU - Bräuninger, H.

AU - Cantatore, G.

AU - Carmona, J. M.

AU - Cetin, S. A.

AU - Christensen, F.

AU - Collar, J. I.

AU - Dafni, T.

AU - Davenport, M.

AU - Desch, K.

AU - Dermenev, A.

AU - Eleftheriadis, C.

AU - Fanourakis, G.

AU - Ferrer-Ribas, E.

AU - Friedrich, P.

AU - Galán, J.

AU - García, J. A.

AU - Gardikiotis, A.

AU - Garza, J. G.

AU - Gazis, E. N.

AU - Geralis, T.

AU - Giomataris, I.

AU - Hailey, C.

AU - Haug, F.

AU - Hasinoff, M. D.

AU - Hoffmann, D. H.H.

AU - Iguaz, F. J.

AU - Irastorza, I. G.

AU - Jacoby, J.

AU - Jakobsen, A.

AU - Jakovčić, K.

AU - Kaminski, J.

AU - Karuza, M.

AU - Kavuk, M.

AU - Krčmar, M.

AU - Krieger, C.

AU - Krüger, A.

AU - Lakić, B.

AU - Laurent, J. M.

AU - Liolios, A.

AU - Ljubičić, A.

AU - Luzón, G.

AU - Neff, S.

AU - Ortega, I.

AU - Papaevangelou, T.

AU - Pivovaroff, M. J.

PY - 2015/10/7

Y1 - 2015/10/7

N2 - In this work we present a search for (solar) chameleons with the CERN Axion Solar Telescope (CAST). This novel experimental technique, in the field of dark energy research, exploits both the chameleon coupling to matter (βm) and to photons (βγ) via the Primakoff effect. By reducing the X-ray detection energy threshold used for axions from 1 keV to 400 eV CAST became sensitive to the converted solar chameleon spectrum which peaks around 600 eV. Even though we have not observed any excess above background, we can provide a 95% C.L. limit for the coupling strength of chameleons to photons of βγ≲1011 for 1<βm<106.

AB - In this work we present a search for (solar) chameleons with the CERN Axion Solar Telescope (CAST). This novel experimental technique, in the field of dark energy research, exploits both the chameleon coupling to matter (βm) and to photons (βγ) via the Primakoff effect. By reducing the X-ray detection energy threshold used for axions from 1 keV to 400 eV CAST became sensitive to the converted solar chameleon spectrum which peaks around 600 eV. Even though we have not observed any excess above background, we can provide a 95% C.L. limit for the coupling strength of chameleons to photons of βγ≲1011 for 1<βm<106.

KW - CAST

KW - Chameleon

KW - Dark energy

KW - SDD

KW - Tachocline

KW - X-ray

UR - https://www.scopus.com/pages/publications/84939157866

U2 - 10.1016/j.physletb.2015.07.049

DO - 10.1016/j.physletb.2015.07.049

M3 - 文章

AN - SCOPUS:84939157866

SN - 0370-2693

VL - 749

SP - 172

EP - 180

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

Search for chameleons with CAST

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this