A Search for Lorentz Invariance and CPT Violation with the MINOS Far Detector
Authors:
MINOS Collaboration,
P. Adamson,
D. J. Auty,
D. S. Ayres,
C. Backhouse,
G. Barr,
W. L. Barrett,
M. Bishai,
A. Blake,
G. J. Bock,
D. J. Boehnlein,
D. Bogert,
C. Bower,
S. Budd,
S. Cavanaugh,
D. Cherdack,
S. Childress,
B. C. Choudhary,
J. A. B. Coelho,
J. H. Cobb,
S. J. Coleman,
L. Corwin,
J. P. Cravens,
D. Cronin-Hennessy,
I. Z. Danko
, et al. (108 additional authors not shown)
Abstract:
We searched for a sidereal modulation in the MINOS far detector neutrino rate. Such a signal would be a consequence of Lorentz and CPT violation as described by the Standard-Model Extension framework. It also would be the first detection of a perturbative effect to conventional neutrino mass oscillations. We found no evidence for this sidereal signature and the upper limits placed on the magnitude…
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We searched for a sidereal modulation in the MINOS far detector neutrino rate. Such a signal would be a consequence of Lorentz and CPT violation as described by the Standard-Model Extension framework. It also would be the first detection of a perturbative effect to conventional neutrino mass oscillations. We found no evidence for this sidereal signature and the upper limits placed on the magnitudes of the Lorentz and CPT violating coefficients describing the theory are an improvement by factors of $20-510$ over the current best limits found using the MINOS near detector.
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Submitted 16 July, 2010;
originally announced July 2010.