标题： 短程算符贡献的 LQCD 对$0νββ$衰变 显示英文标题

标题： Short Range Operator Contributions to $0νββ$ decay from LQCD

摘要： 寻找核的无中微子双贝塔衰变被认为是最有希望寻找新物理的方法之一。 观测这一极其稀有的核过程（它违反轻子数守恒），将意味着中微子部门具有马约拉纳质量成分，也可能为宇宙物质-反物质不对称性提供解释。 在存在重中间粒子交换的情况下，短程相互作用的量子色动力学贡献变得相关，因此有必要计算四夸克算符的矩阵元。 在这些报告中，我们将讨论我们在从格点量子色动力学（LQCD）计算这些四夸克算符方面的最新进展。 显示英文摘要

摘要： The search for neutrinoless double beta decay of nuclei is believed to be one of the most promising means to search for new physics. Observation of this very rare nuclear process, which violates Lepton Number conservation, would imply the neutrino sector has a Majorana mass component and may also provide an explanation for the universe matter-antimatter asymmetry of the universe. In the case where a heavy intermediate particle is exchanged in this process, QCD contributions from short range interactions become relevant and the calculation of matrix elements with four-quark operators becomes necessary. In these proceedings we will discuss our current progress in the calculation of these four-quark operators from LQCD.