论文标题
介体SM衰变中广义ALP相互作用的签名
Signatures of generalized ALP interactions in SM decays of mesons
论文作者
论文摘要
除了在介子衰减的最终状态下产生壮观的新物理信号外，轴突样粒子还会在介子的标准模型衰减中进行修改。这些“间接”特征可以作为辐射形式的修饰进行参数化，并且可以使用中膜衰变宽度和衰减分布测量进行探测。从广义的ALP Lagrangian开始，我们证明了使用Na48/2数据衍生的半乳头kaon衰变和界限的这些效果。我们还简要讨论了其他间接特征，例如修改介子质谱和由介子衰变振幅组成的“总和规则”，这些振幅在ALP存在下显示出偏差。
In addition to giving rise to spectacular new physics signals in the final states of meson decays, Axion-like-particles also induce modifications in the standard model decays of mesons. These `indirect' signatures can be parametrized as the modifications of the hadronic form factors and can be probed using meson decay width and decay distribution measurements. Starting with a generalized ALP Lagrangian, we demonstrate these effects for semileptonic Kaon decays and derived bounds using NA48/2 data. We also briefly discuss other indirect signatures such as modification of meson mass spectrum and `sum rules' comprised of meson decay amplitudes which show deviation in presence of ALP.
