First search for Lorentz and CPT violation in double beta decay with EXO-200

Publication Type
Journal Article
Year of Publication
2016
Authors
Albert, J. B.
Barbeau, P. S.
Beck, D.
Belov, V.
Breidenbach, M.
Brunner, T.
Burenkov, A.
Cao, G. F.
Chambers, C.
Cleveland, B.
Coon, M.
Craycraft, A.
Daniels, T.
Danilov, M.
Daugherty, S. J.
Davis, C. G.
Davis, J.
Delaquis, S.
Der Mesrobian-Kabakian, A.
DeVoe, R.
Diaz, J. S.
Didberidze, T.
Dilling, J.
Dolgolenko, A.
Dolinski, M. J.
Dunford, M.
Fairbank, W.
Farine, J.
Feyzbkhsh, S.
Feldmeier, W.
Fierlinger, P.
Fudenberg, D.
Gornea, R.
Graham, K.
Gratta, G.
Hall, C.
Homiller, S.
Hughes, M.
Jewell, M. J.
Jiang, X. S.
Johnson, A.
Johnson, T. N.
Johnston, S.
Karelin, A.
Kaufman, L. J.
Killick, R.
Koffas, T.
Kravitz, S.
Krucken, R.
Kuchenkov, A.
Kumar, K. S.
Leonard, D. S.
Licciardi, C.
Lin, Y. H.
Ling, J.
MacLellan, R.
Marino, M. G.
Mong, B.
Moore, D.
Nelson, R.
Njoya, O.
Odian, A.
Ostrovskiy, I.
Piepke, A.
Pocar, A.
Prescott, C. Y.
Retiere, F.
Rowson, P. C.
Russell, J. J.
Schubert, A.
Sinclair, D.
Smith, E.
Stekhanov, V.
Tarka, M.
Tolba, T.
Tsang, R.
Twelker, K.
Vuilleumier, J. L.
Vogel, P.
Waite, A.
Walton, J.
Walton, T.
Weber, M.
Wen, L. J.
Wichoski, U.
Wood, J.
Yang, L.
Yen, Y. R.
Zeldovich, O. Y.
Collaboration, E. X. O.
Name of Publication
Physical Review D
Volume
93
Pagination
6
Issue
7
Date Published
Apr
Type of Article
Article
Short Title
First search for Lorentz and CPT violation in double beta decay with EXO-200
Accession Number
WOS:000373209600002
ISBN Number
2470-0010
Keywords
Astronomy & Astrophysics, invariance, meson, neutrino, Physics
Abstract

A search for Lorentz- and CPT-violating signals in the double beta decay spectrum of Xe-136 has been performed using an exposure of 100 kg . yr with the EXO-200 detector. No significant evidence of the spectral modification due to isotropic Lorentz -violation was found, and a two-sided limit of -2.65 x 10(-5) GeV (a)(of),(,3r) 7.60 x 10(-6) GeV (90% C.L.) is placed on the relevant coefficient within the Standard -Model Extension (SME). This is the first experimental study of the effect of the SME-defined oscillation -free and momentum-independent neutrino coupling operator on the double beta decay process.