论文标题
$ b $ -HADRON光谱研究基于双底巴里龙和底部梅森的相似性
$b$-hadron spectroscopy study based on the similarity of double bottom baryon and bottom meson
论文作者
论文摘要
$λ$ -mode兴奋$烧烤$ baryons（$ q $是指$ u $，$ d $和$ s $ quarks）和$ \ bar {b} q $ mesons启发我们激发我们进行光谱研究的合并研究。在这项工作中，通过相同的理论方法研究了这些低洼的$ b \ bar {q} $和$ bbq $状态的质量和强烈的衰减，并且还讨论了在其质谱和强烈衰减中暗示的动态相似性。最近发现的$ \ bar {b} q $状态，包括$ b_j（5840）$，$ b_j（5970）$，$ b_ {sj}（6064）$和$ b_ {sj}（6114）$。根据我们的结果，$ b_j（5840）$可以分配为2 $ s $状态，而$ b_j（5970）$可以被视为$ 1D（2^ - ，〜3^ - ）_ {J_q = 5/2} $ DoubleT的成员。 $ b_ {sj}（6064）$和$ b_ {sj}（6114）$可能是$ d $ - 波状态。特别是，它们可以解释为$ 1D（1^ - ，〜2^ - ）的成员_ {j_q = 3/2} $和$ 1D（2^ - ，〜3^ - ）_ {J_Q = 5/2} $ Doublets。其他未知$ \ bar {b} q/bbq $状态的预测质量和衰减属性可能为将来的实验提供有用的线索。
The dynamical similarity which exists between the $λ$-mode excited $bbq$ baryons ($q$ refers to the $u$, $d$, and $s$ quarks) and the $\bar{b}q$ mesons inspires us to carry out a combined study of their spectroscopy. In this work, the masses and strong decays of these low-lying $b\bar{q}$ and $bbq$ states are studied by the same theoretical methods, and the dynamical similarity which is implied in their mass spectra and strong decays are also discussed. The recent discovered $\bar{b}q$ states, including the $B_J(5840)$, $B_J(5970)$, $B_{sJ}(6064)$, and $B_{sJ}(6114)$, are analyzed. According to our result, the $B_J(5840)$ could be assigned as a 2$S$ state, while the $B_J(5970)$ could be regarded as a member of the $1D(2^-,~3^-)_{j_q=5/2}$ doublet. The $B_{sJ}(6064)$ and $B_{sJ}(6114)$ are probably the $D$-wave states. Especially, they could be explained as the members of the $1D(1^-,~2^-)_{j_q=3/2}$ and $1D(2^-,~3^-)_{j_q=5/2}$ doublets, respectively. The predicted masses and decay properties of other unknown $\bar{b}q/bbq$ states may provide useful clues to the future experiment.
