论文标题
在$ u d \ bar {b} \ bar {b} $ $ i（j^{p}）= 0（1^{ - }）$四Quark频道中包含重型旋转效果
Inclusion of heavy spin effects in the $u d \bar{b} \bar{b}$ $I(J^{P})=0(1^{-})$ four-quark channel in the Born-Oppenheimer approximation
论文作者
论文摘要
We refine our previous study of a $u d \bar{b} \bar{b}$ tetraquark resonance with quantum numbers $I(J^{P})=0(1^{-})$, which is based on antiheavy-antiheavy lattice QCD potentials, by including heavy quark spin effects via the mass difference of the $B$ and the $B^{*}$ meson.这导致了一个耦合的频道schrödinger方程，其中两个通道分别对应于$ bb $和$ b^{*} b^{*} $。我们在复杂的能量平面中搜索$ \ mbox {t} $矩阵电线杆，但在此精制耦合的通道方法中找不到任何tetraquark共振的指示。我们还改变了反疫苗抗抗病的潜力以及$ b $ QUARK质量，以进一步了解该四夸克系统的动态。
We refine our previous study of a $u d \bar{b} \bar{b}$ tetraquark resonance with quantum numbers $I(J^{P})=0(1^{-})$, which is based on antiheavy-antiheavy lattice QCD potentials, by including heavy quark spin effects via the mass difference of the $B$ and the $B^{*}$ meson. This leads to a coupled channel Schrödinger equation, where the two channels correspond to $BB$ and $B^{*}B^{*}$, respectively. We search for $\mbox{T}$ matrix poles in the complex energy plane, but do not find any indication for the existence of a tetraquark resonance in this refined coupled channel approach. We also vary the antiheavy-antiheavy potentials as well as the $b$ quark mass to further understand the dynamics of this four-quark system.
