论文标题
超越MSW效应：中微子在密集的培养基中
Beyond the MSW effect: Neutrinos in a dense medium
论文作者
论文摘要
我们提出了一种在密集的介质中的中微子振荡理论，它超出了MSW效应描述中使用的有效物质潜力。我们展示了中微子状态的纯度如何因与环境的中微子相互作用以及中微子的相互作用而降解 - 含量 - 一种相互作用可以成为破坏性的来源。我们提出了用于与瘦素相互作用的中微子相互作用的新振荡公式，并进行了数值分析，该分析表现出与MSW公式的偏差，以通过超高的能量中微子的地球传播。特别是，我们表明，当考虑到散射时，在高密度和/或高中微子能量（用于MSW效应的消失的过渡概率）时并非为零。
We present a theory of neutrino oscillations in a dense medium which goes beyond the effective matter potential used in the description of the MSW effect. We show how the purity of the neutrino state is degraded by neutrino interactions with the environment and how neutrino--matter interactions can be a source of decoherence. We present new oscillation formulae for neutrinos interacting with leptons and carry out a numerical analysis which exhibits deviations from the MSW formulae for propagation through the Earth of ultra-high energy neutrinos. In particular, we show that at high density and/or high neutrino energy, the vanishing transition probabilities derived for MSW effect, are non zero when the scattering is taken into account.
