论文标题
在光，奇怪和魅力夸克质量的物理价值上扭曲的质量计
Twisted mass gauge ensembles at physical values of the light, strange and charm quark masses
论文作者
论文摘要
直接在动态光，奇怪和魅力夸克的物理质量下，晶状体QCD模拟是非常可取的，尤其是由于手性外推引起的系统错误。但是，这样的模拟仍然具有挑战性。我们在混合蒙特卡洛算法的分子动态步骤中讨论了有效算法的适应，例如多级方法或高阶积分器，这些算法可以通过扩展的扭转质量协作（ETMC）对新的仪表组合进行模拟。我们介绍了正在进行的ETMC仿真工作的状态，该工作旨在研究有限规模和离散效应。我们在扭曲的质量离散化中起作用，这在最大扭曲下没有奇怪的效果，并介绍了我们的调整程序。
Lattice QCD simulations directly at physical masses of dynamical light, strange and charm quarks are highly desirable especially to remove systematic errors due to chiral extrapolations. However such simulations are still challenging. We discuss the adaption of efficient algorithms, like multi-grid methods or higher order integrators, within the molecular dynamic steps of the Hybrid Monte Carlo algorithm, that are enabling simulations of a new set of gauge ensembles by the Extended Twisted Mass collaboration (ETMC). We present the status of the on-going ETMC simulation effort that aims to enabling studies of finite size and discretization effects. We work within the twisted mass discretization which is free of odd-discretization effects at maximal twist and present our tuning procedure.
