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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Search for Lorentz and CPT violation using sidereal time dependence of neutrino flavor transitions over a short baseline
AU - Abe, K.
AU - Amey, J.
AU - Andreopoulos, C.
AU - Antonova, M.
AU - Aoki, S.
AU - Ariga, A.
AU - Assylbekov, S.
AU - Autiero, D.
AU - Ban, S.
AU - Barbato, F. C. T.
AU - Barbi, M.
AU - Barker, G. J.
AU - Barr, G.
AU - Barry, C.
AU - Bartet-Friburg, P.
AU - Batkiewicz, M.
AU - Berardi, V.
AU - Berkman, S.
AU - Bhadra, S.
AU - Bienstock, S.
AU - Blondel, A.
AU - Bolognesi, S.
AU - Bordoni, S.
AU - Brailsford, D.
AU - Bravar, A.
AU - Bronner, C.
AU - Avanzini, M. Buizza
AU - Calland, R. G.
AU - Campbell, T.
AU - Cao, S.
AU - Castillo, R.
AU - Catanesi, M. G.
AU - Cervera, A.
AU - Chappell, A.
AU - Checchia, C.
AU - Cherdack, D.
AU - Chikuma, N.
AU - Christodoulou, G.
AU - Dealtry, T.
AU - Finch, A. J.
AU - Grant, N.
AU - Knox, A.
AU - Kormos, L. L.
AU - Lamont, I.
AU - Lawe, M.
AU - Nowak, J.
AU - O'Keeffe, H. M.
AU - Ratoff, P. N.
AU - Shaw, D.
AU - Southwell, L.
AU - T2K Collaboration
N1 - 13 pages, 6 figures
PY - 2017/6/29
Y1 - 2017/6/29
N2 - 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.
AB - 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.
KW - hep-ex
U2 - 10.1103/PhysRevD.95.111101
DO - 10.1103/PhysRevD.95.111101
M3 - Journal article
JO - Physical Review D
JF - Physical Review D
SN - 1550-7998
ER -