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Modern field and scattering theory for fundamental physics

基础物理的现代场和散射理论

基本信息

批准号：
2887909
负责人：
金额：
--
依托单位：
University of Glasgow
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2023
资助国家：
英国
起止时间：
2023 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2887909
关键词：
Modern field scattering theory fundamental

项目摘要

"In the coming decades in high energy physics, we will see many big experiments generate big datasets, such as the revamped HL-LHC proton-proton collider, and the LIGO-Virgo-KAGRA collective of gravitational wave detectors. Our predictions for many of these experiments come from an underlying field theory, and its corresponding amplitudes that describe scattering processes.Common to these big experiments are two bottlenecks. One, there is a large number of possibilities for what we might see. Two, our analytical and numerical field theoretic predictions for each of these possibilities can take a long time to produce.This proposal aims to improve our search for new fundamental physics discoveries on both counts, including by:1. narrowing down the possibilities for what we might see in colliders, such as Belle II, the LHC and future colliders. This will involve a comprehensive survey of simplified models of new physics in the electroweak sector, calculating their current and projected constraints from Higgs, electroweak precision, and flavour data.2. extending functional and on-shell methods, such as constructability algorithms, to work with the numerous local interactions produced by heavy new particles in high energy experiments, as encoded by SMEFT or HEFT.3. applying the same to effective field theories relevant for numerical relativity calculations of gravitational waveforms to generate faster, more precise calculational techniques."

“在未来几十年的高能物理学中，我们将看到许多大型实验产生大型数据集，例如改进的HL-LHC质子-质子对撞机和LIGO-Virgo-KAGRA引力波探测器集体。我们对这些实验的预测大多来自基本的场论，以及描述散射过程的相应振幅。第一，我们可能会看到很多可能性。第二，我们对每一种可能性的分析和数值场论预测可能需要很长时间才能产生。这个建议旨在改善我们对这两个方面新的基础物理发现的搜索，包括：1。缩小了我们在对撞机上看到的可能性，比如贝儿二号，大型强子对撞机和未来的对撞机。这将涉及对电弱部门新物理学的简化模型的全面调查，计算它们的电流和希格斯粒子的预测约束，电弱精度和味道数据。扩展功能和壳方法，如可构造性算法，以处理高能实验中由重新粒子产生的大量局部相互作用，如SMEFT或HEFT所编码的。将其应用于与重力波形的数值相对论计算相关的有效场论，以产生更快、更精确的计算技术。"