论文标题
反iHevy-Antiheavy-Light-Light Light Four Quark Bound State
Antiheavy-Antiheavy-Light-Light Four-Quark Bound States
论文作者
论文摘要
我们使用晶格QCD介绍了有关抗抗抗光灯灯光系统的最新结果。 Our study of the $ \bar{b}\bar{b}us $ four-quark system with quantum numbers $ J^P=1^+ $ and the $ \bar{b}\bar{c}ud $ four-quark systems with $ I(J^P)=0(0^+) $ and $ I(J^P)=0(1^+) $ utilizes scattering operators at the sink to improve the extraction of the低洼的能量水平。我们找到了$ \ bar {b} \ bar {b} us $ $ e _ {\ textrm {bind}，\ bar {b} \ bar {b} us} =（--86 \ pm 22 \ pm pm 10）\，\ bar {mev} $ nodatiation，我们发现了一个约束状态。 \ bar {b} \ bar {c} ud $ channels。此外，我们显示了$ \ bar {b} \ bar {b} ud $的初步结果，其中$ i（j^p）= 0（1^+）$，我们在水槽和来源都使用了散射运算符。我们找到了一个结合状态，并通过散射分析确定了其无限体积结合能，从而导致$ e _ {\ textrm {bind}，\ bar {b} \ bar {b} ud} ud} =（ - 103 \ pm 8）\，\ pm 8）\，\ textrm {mev} $。
We present our recent results on antiheavy-antiheavy-light-light tetraquark systems using lattice QCD. Our study of the $ \bar{b}\bar{b}us $ four-quark system with quantum numbers $ J^P=1^+ $ and the $ \bar{b}\bar{c}ud $ four-quark systems with $ I(J^P)=0(0^+) $ and $ I(J^P)=0(1^+) $ utilizes scattering operators at the sink to improve the extraction of the low-lying energy levels. We found a bound state for $ \bar{b}\bar{b}us $ with $ E_{\textrm{bind},\bar{b}\bar{b}us} = (-86 \pm 22 \pm 10)\,\textrm{MeV} $, but no indication for a bound state in both $ \bar{b}\bar{c}ud $ channels. Moreover, we show preliminary results for $ \bar{b}\bar{b}ud $ with $ I(J^P)=0(1^+) $, where we used scattering operators both at the sink and the source. We found a bound state and determined its infinite-volume binding energy with a scattering analysis, resulting in $ E_{\textrm{bind},\bar{b}\bar{b}ud} =(-103 \pm 8 )\,\textrm{MeV} $.
