权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Implementation of Precision Parton Shower Physics into the Herwig Event Generator for LHC Simulation

将精密帕顿簇射物理学应用到用于大型强子对撞机模拟的 Herwig 事件发生器中

基本信息

批准号：
2784927
负责人：
金额：
--
依托单位：
University of Manchester
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2022
资助国家：
英国
起止时间：
2022 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2784927
关键词：
Implementation Precision Parton Shower Physics

项目摘要

In high energy physics we are usually interested in interactions between partons (quarks and gluons) with high momentum transfer, producing new particles like the Higgs boson or supersymmetric partners, or more familiar ones like the top quark. These decay to produce further partons. However, partons cannot propagate freely but are confined into hadrons, the particles that interact with the detectors around the collision region. This process by which a few hard partons evolve into a system of hundreds of hadrons is far too complicated to calculate analytically and must be modelled numerically, with Monte Carlo techniques. Any attempt to understand the data from the LHC or other high energy collider experiments would be completely impossible without Monte Carlo event generators that simulate them. The Herwig event generator is one of only three used to simulate events at the LHC and other high energy particle physics experiments.A key component of these event generators is the algorithm to evolve the partons produced in the high momentum transfer collision down to the energy scale where they produce hadrons, called a parton shower algorithm. Great progress in the theoretical understanding of parton shower physics has been made over the last ten years and the main aim of this PhD project is to use that understanding to improve the precision of Herwig's parton shower algorithm and thereby the accuracy of its simulation of LHC events.

在高能物理中，我们通常对部分子（夸克和胶子）之间的相互作用感兴趣，这些相互作用具有高动量转移，产生新的粒子，如希格斯玻色子或超对称伙伴，或更熟悉的粒子，如顶夸克。这些衰变产生更多的部分子。然而，部分子不能自由传播，而是被限制在强子中，强子是与碰撞区域周围的探测器相互作用的粒子。这个由几个硬部分子演化成数百个强子系统的过程太复杂，无法用解析方法计算，必须用蒙特卡罗技术进行数值模拟。任何试图理解LHC或其他高能对撞机实验数据的尝试，如果没有蒙特卡罗事件发生器来模拟它们，都是完全不可能的。Herwig事件发生器是LHC和其他高能粒子物理实验中用于模拟事件的仅有的三个事件发生器之一，这些事件发生器的一个关键组成部分是将高动量转移碰撞中产生的部分子演化到产生强子的能量尺度的算法，称为部分子簇射算法。在过去的十年中，部分子簇射物理学的理论理解取得了很大的进展，这个博士项目的主要目的是利用这种理解来提高Herwig部分子簇射算法的精度，从而提高其模拟LHC事件的精度。