Multi-Loop Amplitudes for Precision Physics at the LHC

该奖项资助了密歇根州立大学的Andreas von Manteuteur教授的研究活动。在世界上最大的粒子对撞机大型强子对撞机（LHC）中，质子束被加速到最高能量并相互碰撞。 对这些碰撞中产生的粒子进行仔细分析，使我们能够提高对物质基本成分及其在比以往任何时候都更小的距离上相互作用的理解。 在他的研究中，冯·曼托伊特教授的目标是以以前无法达到的精度为对撞机实验提供理论预测。 这项工作对于明确识别新粒子或未知力的影响至关重要。 因此，这一领域的研究通过促进科学在其最基本的方向之一的进步来促进国家利益：理解自然的物理定律和发现超越我们现有知识的新物理机制。 该项目位于理论粒子物理学、应用数学和计算科学的交界处，预计将产生更广泛的影响。 主要研究员将邀请研究生和博士后参与研究，从而为初级物理学家提供分析和计算方法方面的培训。从技术上讲，von Manteuvant教授将开发和应用新的计算方法来评估多圈散射振幅和积分，特别是针对与实验观察现象相关的辐射校正的评估。在大型强子对撞机的关键过程，包括希格斯玻色子，电弱规范玻色子和顶夸克的明确结果将提供。

This award funds the research activities of Professor Andreas von Manteuffel at Michigan State University.At the Large Hadron Collider (LHC), the world's largest particle collider, beams of protons are accelerated to highest energies and collided against each other. A careful analysis of the particles produced in these collisions allows us to improve our understanding of the fundamental constituents of matter and their interactions at smaller distances than have ever been previously explored. In his research, Professor von Manteuffel aims to enable theoretical predictions for collider experiments with previously unattainable precision. This work is essential for unambiguously identifying effects of new particles or unknown forces. As a result, research in this area advances the national interest by promoting the progress of science in one of its most fundamental directions: the understanding the physical laws of Nature and the discovery of new physical mechanisms beyond our present knowledge. Located at the interface of theoretical particle physics, applied mathematics and computational science, this project is also envisioned to have significant broader impacts. The PI will involve graduate students and postdocs in his research, thereby providing training to junior physicists in analytical and computational methods.More technically, Professor von Manteuffel will develop and apply new computational methods for the evaluation of multi-loop scattering amplitudes and integrals, aiming specifically at the evaluation of radiative corrections relevant for experimentally observable phenomena. Explicit results will be provided for key processes at the LHC, involving the Higgs boson, electroweak gauge bosons, and the top quark.