Testing Lorentz invariance and CPT conservation with NuMI neutrinos in the MINOS near detector.

Journal article

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).

Authors: Adamson, P; Andreopoulos, C; Arms, K; Armstrong, R; Auty, D

• Publication status: Published
• Journal: Physical Review Letters
• Volume: 101
• Issue: 15
• Pages: 151601
• Publication date: 2008-10-09
• DOI: 10.1103/PhysRevLett.101.151601
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English
• Keywords: MINOS Collaboration