Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-02-26
Physics
High Energy Physics
High Energy Physics - Phenomenology
6 pages, 4 figures, CPT'07 Conference proceedings
Scientific paper
We present an analysis designed to search for Lorentz and CPT violations as predicted by the SME framework using the charged current neutrino events in the MINOS near detector. In particular we develop methods to identify periodic variations in the normalized number of charged current neutrino events as a function of sidereal phase. To test these methods, we simulated a set of 1,000 experiments without Lorentz and CPT violation signals using the standard MINOS Monte Carlo. We performed an FFT on each of the simulated experiments to find the distribution of powers in the sidereal phase diagram without a signal. We then injected a signal of increasing strength into the sidereal neutrino oscillation probability until we found a 5$\sigma$ deviation from the mean in the FFT power spectrum. By this method, we can establish upper limits for the Lorentz and CPT violating terms in the SME.
Mufson Stuart Lee
Rebel Brian J.
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