论文标题
美元
$χ_{c1}(2p)$: an overshadowed charmoniumlike resonance
论文作者
论文摘要
对$ j^{pc} = 1^{++} $弹性$ d^{0} \ bar {d}^{d}^{\ ast0} $和$ d^{+} d^{+} d^{\ ast-} $散射的形式，从lattice cartime carcuntion cartime call carccuntion call latties carccuntion ut-ratties calligation call latties carccd call cccd call cccd计算最多4 GEV。 We show that the presence of $χ_{c1}(3872)$, which can be naturally assigned to either a bound or virtual charmoniumlike state close below the $D^{0}\bar{D}^{\ast0}$ threshold, can overshadow a quasiconventional charmoniumlike resonance lying above threshold.这很难通过$ d^{0} \ bar {d}^{\ ast0} $和$ d^{+} d^{\ ast-} $ Channels的实验检测，尽管其预期的主要衰减模式。我们分析了替代性强和电磁衰减模式。与现有数据的比较表明，这种共振可能已经通过其衰减到$ωJ/ψ$观察到。
A thorough study of the $J^{PC}=1^{++}$ elastic $D^{0}\bar{D}^{\ast0}$ and $D^{+}D^{\ast-}$ scattering, where the form of the meson-meson interaction is inferred from lattice QCD calculations of string breaking, is carried out for center-of-mass energies up to 4 GeV. We show that the presence of $χ_{c1}(3872)$, which can be naturally assigned to either a bound or virtual charmoniumlike state close below the $D^{0}\bar{D}^{\ast0}$ threshold, can overshadow a quasiconventional charmoniumlike resonance lying above threshold. This makes difficult the experimental detection of this resonance through the $D^{0}\bar{D}^{\ast0}$ and $D^{+}D^{\ast-}$ channels, despite being its expected main decay modes. We analyze alternative strong and electromagnetic decay modes. Comparison with existing data shows that this resonance may have already been observed through its decay to $ωJ/ψ$.
