在ILC处存在ISR时的运动学拟合
Kinematic Fitting in the Presence of ISR at the ILC
摘要：
运动学拟合是一种成熟的工具，通过在约束条件下拟合测量值（例如能量守恒）来提高射流能量和不变质量分辨率。然而，在大量ISR和Beamstrahlung的存在下，由于共线光子携带的未检测到的动量的先验未知量，天真的能量和（纵向）动量约束失败。可以考虑这两种效应，从而获得显著更高的质量分辨率。
英文摘要：
Kinematic fitting is a well-established tool to improve jet energy and invariant mass resolutions by fitting the measured values under constraints (e.g. energy conservation). However, in the presence of substantial ISR and Beamstrahlung, naive energy and (longitudinal) momentum constraints fail due to the a priori unknown amount of undetected momentum carried away by collinear photons. It is possible to take care of those two effects and thus obtain significantly higher mass resolutions.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
