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

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

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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...

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Бібліографічні деталі
Автори: Adamson, P, Andreopoulos, C, Arms, K, Armstrong, R, Auty, D, Ayres, D, Baller, B, Barr, G, Barrett, W, Becker, B, Belias, A, Bernstein, R, Bhattacharya, D, Bishai, M, Blake, A, Bock, G, Boehm, J, Boehnlein, D, Bogert, D, Bower, C, Buckley-Geer, E, Cavanaugh, S, Chapman, J, Cherdack, D, Childress, S
Формат: Journal article
Мова:English
Опубліковано: 2008
Опис
Резюме: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).

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