论文标题
对HADRON对撞机的电动相互作用的巨大颗粒的非扰动作用
Non-perturbative Effects on Electroweakly Interacting Massive Particles at Hadron Collider
论文作者
论文摘要
换句话说，在标准模型（SM）的电子相互作用下充电的新型大型颗粒（SM）经常在各种新物理模型中预测。不仅可以通过观察其直接生产，而且还测量其对SM Lepton对生产的DRELL-YAN过程的量子效应，因此可以在Hadron Collider实验上进行探测Ewimps。已知这种效果会得到增强，尤其是当最终状态的Di-lepton不变质量接近EWIMP阈值时，即Ewimp质量两倍。但是，在这样的质量区域中，我们必须仔细考虑非扰动效应，因为ewimps成为非依赖性的，并且预测可能会受到electroweak相互作用引起的ewimps的结合状态的显着影响。我们使用Ewimps的非权威有效场理论研究了这种非扰动效应，并发现这些效应确实会显着影响Drell-Yan过程的差异横截面，尽管由于Lepton测量的有限能量分辨率在大型Hadron Collider实验中涂抹了效应。
Electroweakly Interacting Massive Particles (EWIMPs), in other words, new massive particles that are charged under the electroweak interaction of the Standard Model (SM), are often predicted in various new physics models. EWIMPs are probed at hadron collider experiments not only by observing their direct productions but also by measuring their quantum effects on Drell-Yan processes for SM lepton pair productions. Such effects are known to be enhanced especially when the di-lepton invariant mass of the final state is close to the EWIMP threshold, namely twice the EWIMP mass. In such a mass region, however, we have to carefully take non-perturbative effects into account, because the EWIMPs become non-relativistic and the prediction may be significantly affected by e.g., bound states of the EWIMPs caused by the electroweak interaction. We study such non-perturbative effects using the non-relativistic effective field theory of the EWIMPs, and found that those indeed affect the differential cross section of the Drell-Yan processes significantly, though the effects are smeared due to the finite energy resolution of the lepton measurement at the Large Hadron Collider experiment.
