Search for Lorentz and CPT violation using sidereal time dependence of neutrino flavor transitions over a short baseline

Abe, K. and Amey, J. and Andreopoulos, C. and Antonova, M. and Aoki, S. and Ariga, A. and Assylbekov, S. and Autiero, D. and Ban, S. and Barbato, F. C. T. and Barbi, M. and Barker, G. J. and Barr, G. and Barry, C. and Bartet-Friburg, P. and Batkiewicz, M. and Berardi, V. and Berkman, S. and Bhadra, S. and Bienstock, S. and Blondel, A. and Bolognesi, S. and Bordoni, S. and Brailsford, D. and Bravar, A. and Bronner, C. and Avanzini, M. Buizza and Calland, R. G. and Campbell, T. and Cao, S. and Castillo, R. and Catanesi, M. G. and Cervera, A. and Chappell, A. and Checchia, C. and Cherdack, D. and Chikuma, N. and Christodoulou, G. and Dealtry, T. and Finch, A. J. and Grant, N. and Knox, A. and Kormos, L. L. and Lamont, I. and Lawe, M. and Nowak, J. and O'Keeffe, H. M. and Ratoff, P. N. and Shaw, D. and Southwell, L. (2017) Search for Lorentz and CPT violation using sidereal time dependence of neutrino flavor transitions over a short baseline. Physical Review D. ISSN 1550-7998

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Abstract

A class of extensions of the Standard Model allows Lorentz and CPT violations, which can be identified by the observation of sidereal modulations in the neutrino interaction rate. A search for such modulations was performed using the T2K on-axis near detector. Two complementary methods were used in this study, both of which resulted in no evidence of a signal. Limits on associated Lorentz and CPT violating terms from the Standard Model Extension have been derived taking into account their correlations in this model for the first time. These results imply such symmetry violations are suppressed by a factor of more than $10^{20}$ at the GeV scale.

Item Type:
Journal Article
Journal or Publication Title:
Physical Review D
Additional Information:
13 pages, 6 figures
Subjects:
ID Code:
86577
Deposited By:
Deposited On:
01 Jun 2017 15:10
Refereed?:
Yes
Published?:
Published
Last Modified:
30 May 2020 05:12