Quantum-gravity decoherence effects in neutrino oscillations: Expected constraints from CNGS and J-PARC

Abstract : Quantum decoherence, the evolution of pure states into mixed states, may be a feature of quantum-gravity models. In most cases, such models lead to fewer neutrinos of all active flavors being detected in a long-baseline experiment as compared to three-flavor standard neutrino oscillations. We discuss the potential of the CNGS and J-PARC beams in constraining models of quantum-gravity induced decoherence using neutrino oscillations as a probe. We use as much as possible model-independent parametrizations, even though they are motivated by specific microscopic models, for fits to the expected experimental data which yield bounds on quantum-gravity decoherence parameters
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Article dans une revue
Physical Review D, American Physical Society, 2008, 77, pp.053014-19. <10.1103/PhysRevD.77.053014>


http://hal.in2p3.fr/in2p3-00275257
Contributeur : Yvette Heyd <>
Soumis le : mercredi 23 avril 2008 - 09:30:46
Dernière modification le : mercredi 23 avril 2008 - 09:40:27

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N.E. Mavromatos, A. Meregaglia, A. Rubbia, A.S. Sakharov, S. Sarkar. Quantum-gravity decoherence effects in neutrino oscillations: Expected constraints from CNGS and J-PARC. Physical Review D, American Physical Society, 2008, 77, pp.053014-19. <10.1103/PhysRevD.77.053014>. <in2p3-00275257>

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