Collaborative Research: Human Resources for Computational High Energy Physics

这是计算高能物理领域的一个小组提案，将由 MILC 合作组织进行。这项研究解决了高能和核物理的基本问题，并且与这些领域的主要实验项目直接相关。它需要非常大规模的数值计算，这被广泛认为是计算科学的巨大挑战之一。这里提出的人力资源将使我们能够解决几个关键的新物理问题。这些包括（1）研究电磁效应和非微扰质量重整化，以精确确定轻夸克的质量（2）新的核子质量的高精度理论确定（3）确定固定自然界基本常数所需的 B 和 K 介子的混合参数，以及（4）研究夸克-胶子等离子体在非零核密度下的热力学。这些举措需要在 MILC 框架内开发新的应用程序代码、运行这些代码以及对输出进行详细分析以提取相关的物理结果。该项目支持所需的博士后研究员使这项工作取得成果。

This is a group proposal in computational high energy physics to be carried out by theMILC Collaboration This research addresses fundamentalquestions in high energy and nuclear physics, and is directly related to majorexperimental programs in these fields. It requires very large scale numerical calculationsthat are widely recognized as one of the grand challenges of computational science.The human resources proposed here will enable us to attack several crucial new physicsissues. These include (1) a study of the electromagnetic effects and nonperturbative massrenormalization needed to obtain a precise determination of the masses of the light quarks(2) a new high-precision theoretical determination of the nucleon mass (3) a determinationof mixing parameters for the B and K mesons needed to fix fundamental constants in natureand (4) a study of the thermodynamics of the quark-gluon plasma at nonzero nucleardensity. These initiatives require the development of new application codes within theMILC framework, the running of those codes, and the detailed analysis of the output toextract the relevant physical results. This project supports the needed postdoctoralresearch associates to carry this work to fruition.