Tests of Lorentz invariance at the Sudbury Neutrino Observatory

Aharmim, B. and Ahmed, S. N. and Anthony, A. E. and Barros, N. and Beier, E. W. and Bellerive, A. and Beltran, B. and Bergevin, M. and Biller, S. D. and Blucher, E. and Bonventre, R. and Boudjemline, K. and Boulay, M. G. and Cai, B. and Callaghan, E. J. and Caravaca, J. and Chan, Y. D. and Chauhan, D. and Chen, M. and Cleveland, B. T. and Cox, G. A. and Dai, X. and Deng, H. and Descamps, F. B. and Detwiler, J. A. and Doe, P. J. and Doucas, G. and Drouin, P. -L. and Dunford, M. and Elliott, S. R. and Evans, H. C. and Ewan, G. T. and Farine, J. and Fergani, H. and Fleurot, F. and Ford, R. J. and Formaggio, J. A. and Gagnon, N. and Gilje, K. and Goon, J. T. M. and Graham, K. and Guillian, E. and Habib, S. and Hahn, R. L. and Hallin, A. L. and Hallman, E. D. and Harvey, P. J. and Kormos, L. L. and O'Keeffe, H. M. and Peeters, S. J. M. (2018) Tests of Lorentz invariance at the Sudbury Neutrino Observatory. Physical Review D, 98 (11). ISSN 2470-0010

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Abstract

Experimental tests of Lorentz symmetry in systems of all types are critical for ensuring that the basic assumptions of physics are well founded. Data from all phases of the Sudbury Neutrino Observatory, a kiloton-scale heavy water Cherenkov detector, are analyzed for possible violations of Lorentz symmetry in the neutrino sector. Such violations would appear as one of eight possible signal types in the detector: six seasonal variations in the solar electron neutrino survival probability differing in energy and time dependence and two shape changes to the oscillated solar neutrino energy spectrum. No evidence for such signals is observed, and limits on the size of such effects are established in the framework of the standard model extension, including 38 limits on previously unconstrained operators and improved limits on 16 additional operators. This makes limits on all minimal, Dirac-type Lorentz violating operators in the neutrino sector available for the first time.

Item Type: Journal Article
Journal or Publication Title: Physical Review D
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 130741
Deposited By: ep_importer_pure
Deposited On: 28 Jan 2019 10:20
Refereed?: Yes
Published?: Published
Last Modified: 22 Feb 2020 04:56
URI: https://eprints.lancs.ac.uk/id/eprint/130741

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