中微子振荡中的量子引力退相干效应：来自CNGS和J-PARC的预期约束
Quantum-Gravity Decoherence Effects in Neutrino Oscillations: Expected Constraints from CNGS and J-PARC
摘要：
量子退相干，即纯态到混合态的演化，可能是量子引力模型的一个特征。在大多数情况下，与三味标准中微子振荡相比，这种模型导致在长基线实验中检测到的所有活性味的中微子更少。利用中微子振荡作为探针，讨论了在量子引力诱导退相干约束模型中，CNGS和J-PARC光束的势能。我们使用尽可能多的模型无关的参数化，即使他们是出于特定的微观模型，适合预期的实验数据产生的界限上的量子引力退相干参数。
英文摘要：
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 flavours being detected in a long baseline experiment as compared to three-flavour 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 parameterizations, 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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