Testing Lorentz Invariance and CPT Conservation with NuMI Neutrinos in the MINOS Near Detector

Adamson, P, Andreopoulos, C, Arms, K.E, Armstrong, R, Auty, D J, Ayres, D.S, Baller, B, Barr, G, Barrett, W L, Becker, B.R, Falk, E, Harris, P G and Hartnell, J (2008) Testing Lorentz Invariance and CPT Conservation with NuMI Neutrinos in the MINOS Near Detector. Physical Review Letters, 101 (15). p. 151601. ISSN 0031-9007

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Abstract

A search for a sidereal modulation in the MINOS near detector neutrino data was performed. If present, this signature could be a consequence of Lorentz and CPT violation as predicted by the effective field theory called the standard-model extension. No evidence for a sidereal signal in the data set was found, implying that there is no significant change in neutrino propagation that depends on the direction of the neutrino beam in a sun-centered inertial frame. Upper limits on the magnitudes of the Lorentz and CPT violating terms in the standard-model extension lie between 10-4 and 10-2 of the maximum expected, assuming a suppression of these signatures by a factor of 10-17.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: David Auty
Date Deposited: 06 Feb 2012 18:32
Last Modified: 07 Mar 2017 05:38
URI: http://sro.sussex.ac.uk/id/eprint/16991

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