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Neutral hadrons disappearing into the darkness

机译:中性强子消失在黑暗中

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摘要

We study the invisible decay of neutral hadrons in a representative model of the dark sector. The mesons K L and B 0 decay into the dark sector with branching rates that can be at the current experimental limits. The neutron decays with a rate that could either explain the neutron lifetime puzzle (although only for an extreme choice of the parameters and a fine-tuned value of the masses) or be just above the current limit of its invisible decay ( τ N inv ? 10 29 ? ? years ) if kinematically allowed. These invisible decays of ordinary matter provide a novel and promising window into new physics that should be vigorously pursued.
机译:我们在暗区的代表性模型中研究中性强子的无形衰变。介子K L和B 0衰减到暗区,其分支速率可能处于当前实验极限。中子的衰变速率可以解释中子寿命难题(尽管仅用于参数的极端选择和质量的微调值),或者正好高于其不可见衰变的电流极限(τN inv? 10 29?年),如果在运动学上允许。普通物质的这些无形的衰变为进入新物理学提供了一个新颖而有希望的窗口,应大力推行。

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