论文标题

$ i = 0 $ tostinuium绑定状态的研究和$ s $,$ p $,$ d $和$ f $ waves带有晶格QCD静态静态光线电位的共鸣

Study of $I=0$ bottomonium bound states and resonances in $S$, $P$, $D$ and $F$ waves with lattice QCD static-static-light-light potentials

论文作者

Bicudo, Pedro, Cardoso, Nuno, Mueller, Lasse, Wagner, Marc

论文摘要

在本文中,我们研究了$ i = 0 $底部的$ s $,$ p $,$ d $和$ f $ waves,考虑了五个耦合频道,一个密闭的Quarkonium和四个开放$ B^{(*)} \ bar b^{(*)} $ and $ b_s^{(*)} $为此,我们利用晶格QCD弦线破裂潜力来研究Quarkonium结合状态和共振的新方法。这种方法基于天生的Oppenheimer近似和单位紧急波方法,并允许计算$ \ mbox {t} $矩阵的极点。我们将结果与$ i = 0 $底部的现有实验结果进行比较,并讨论质量,衰减宽度和角动量量子数的分配。此外,我们确定这些状态的夸克和梅森 - 梅森组成以澄清,其中哪个是普通的Quarkonium,而哪个是应该将其解释为tetraquarks。

In this paper we study $I = 0$ bottomonium in $S$, $P$, $D$ and $F$ waves considering five coupled channels, one confined quarkonium and four open $B^{(*)} \bar B^{(*)}$ and $B_s^{(*)} \bar B_s^{(*)}$ meson-meson channels. To this end we use and extend a recently developed novel approach utilizing lattice QCD string breaking potentials for the study of quarkonium bound states and resonances. This approach is based on the Born Oppenheimer approximation and the unitary emergent wave method and allows to compute the poles of the $\mbox{T}$ matrix. We compare our results to existing experimental results for $I = 0$ bottomonium and discuss masses, decay widths and the assignment of angular momentum quantum numbers. Moreover, we determine the quarkonium and meson-meson composition of these states to clarify, which of them are ordinary quarkonium, and which of them should rather be interpreted as tetraquarks.

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