Effective field theory investigations and tools for the study of quarkonium production

本课题的研究目标是，在获得合适的计算方案后，利用有效的场论方法、低能量分解、开发新的微扰匹配系数自动计算工具、设计新的低能量非微扰矩阵元素和相关器的数值计算方法，更好地控制高能对撞机的夸克元生产过程。同样的技术将被应用于在大型强子对撞机上研究希格斯粒子衰变为夸克，这可以作为研究希格斯粒子与重夸克耦合的工具。

Goal of the present research project is to reach a better control of quarkonium production processes at high energy colliders by using effective field theory methods, lower energy factorizations, developing new tools for automatic calculation of perturbative matching coefficients, devising novel methods for the numerical computations of low energy nonperturbative matrix elements and correlators, once that an appropriate calculational scheme has been obtained. The same technology will be applied to the study of Higgs decay to quarkonium at LHC that can serve as a tool of investigation for the Higgs coupling to heavy quarks.