标题： 使用 LapH 和不可约表示的隐形暗物质谱 显示英文标题

标题： Stealth dark matter spectrum using LapH and Irreps

摘要： 我们展示了SU(4)规范理论中低能介子和重子谱的非微扰晶格计算结果，该理论的费米子基态为基本表示。这个理论是一类强耦合理论的实例之一，这类理论中的最低质量稳定重子是暗物质候选者。这项工作标志着研究强相互作用暗物质自相互作用计划的第一个里程碑。在这里，我们通过应用拉普拉斯海维赛德方法来减少单重子通道中的激发态污染，并将重子算符投影到八面体群的不可约表示上。我们将得到的光谱与之前涉及高斯平滑未投影算符的工作进行了比较，发现统计不确定性有所降低。我们还首次给出了低能奇宇称重子的光谱。 显示英文摘要

摘要： We present non-perturbative lattice calculations of the low-lying meson and baryon spectrum of the SU(4) gauge theory with fundamental fermion constituents. This theory is one instance of stealth dark matter, a class of strongly coupled theories, where the lowest mass stable baryon is the dark matter candidate. This work constitutes the first milestone in the program to study stealth dark matter self-interactions. Here, we focus on reducing excited state contamination in the single baryon channel by applying the Laplacian Heaviside method, as well as projecting our baryon operators onto the irreducible representations of the octahedral group. We compare our resulting spectrum to previous work involving Gaussian smeared non-projected operators and find good agreement with reduced statistical uncertainties. We also present the spectrum of the low-lying odd-parity baryons for the first time.