论文标题
分子$ω__{cc} $，$ω_{bb} $和$ω__{bc} $状态
Molecular $Ω_{cc}$ , $Ω_{bb}$ and $Ω_{bc}$ states
论文作者
论文摘要
我们研究了带有$ω__{cc} $，$ω__{bb} $和$ω__{bc} $的量子数量的介子耦合通道的相互作用。相互作用是从局部隐藏量表方法到重型夸克部门的扩展中获得的，该方法已证明与实验相比，在$ω_{c} $，$ξ_{c} $ state和pentaquarks，$ p_c $和$ p_c $和$ p_ {cs {cs {cs} $的情况下，与实验相比提供了准确的结果。我们获得许多结合状态，在所选耦合通道的空间内具有较小的衰减宽度。状态的自旋 - 为$ j^p = {\ frac {1} {2}}}^ - $ $ $ $ $ $ $ $ $用于偶联的通道（pseudoscalar-baryon（$ {\ frac {\ frac {1} {2} {2}}}}}}^+$ （$ {\ frac {3} {2}}^+$），$ j^p = {\ frac {1} {2}}}}}^ - ，{\ frac {3} {2}}}}}^ - $ $ j^p = {\ frac {1} {2}}}^ - ，{\ frac {3} {2}}}}}^ - ，{\ frac {5} {2}}}}^ - $ for vector-baryon（$ {$ {$ {\ frac {\ frac {\ frac {\ frac {\ frac {\ frac {\ frac {3}} {2} {2}}}^+$）comanels consels nels。我们寻找各州的极点并评估与不同渠道的耦合。开放通道获得的耦合可以作为指导，以查看更可能观察到所获得的状态的反应。
We study the interaction of meson-baryon coupled channels carrying quantum numbers of $Ω_{cc}$ , $Ω_{bb}$ and $Ω_{bc}$ presently under investigation by the LHCb collaboration. The interaction is obtained from an extension of the local hidden gauge approach to the heavy quark sector that has proved to provide accurate results compared to experiment in the case of $Ω_{c}$ , $Ξ_{c}$ states and pentaquarks, $P_c$ and $P_{cs}$. We obtain many bound states, with small decay widths within the space of the chosen coupled channels. The spin-parity of the states are $J^P={\frac{1}{2}}^-$ for coupled channels of pseudoscalar-baryon (${\frac{1}{2}}^+$), $J^P={\frac{3}{2}}^-$ for the case of pseudoscalar-baryon (${\frac{3}{2}}^+$), $J^P={\frac{1}{2}}^-,{\frac{3}{2}}^-$ for the case of vector-baryon (${\frac{1}{2}}^+$) and $J^P={\frac{1}{2}}^-,{\frac{3}{2}}^-,{\frac{5}{2}}^-$ for the vector-baryon (${\frac{3}{2}}^+$) channels. We look for poles of the states and evaluate the couplings to the different channels. The couplings obtained for the open channels can serve as a guide to see in which reaction the obtained states are more likely to be observed.
