论文标题
奇怪的隐藏障碍和隐藏底状态的光生生成
Photoproduction of strange hidden-charm and hidden-bottom states
论文作者
论文摘要
最近，BESIII合作发现了一个带电的奇怪的隐藏式charm状态$ z_ {cs} $（3985）在$ d_s^-d^-d^{*0} + d_s^{* - * - } d^{0} $ spectrum。较高的$ z'_ {cs} $状态耦合到$ \ bar {d} _s^{* - } d^{*0} $由su（3）-fravorysmortry预期，他们的最低伙伴会通过浓度的夸克风味对称性来期望。在这里，我们研究了这些异国情调状态的光生生产，并仔细研究了Pomeron交换的背景。我们的结果表明，奇怪的伙伴的最大光增生性横截面约为1 $ \ sim $ 2的数量级，比相应的非trange状态小。简要讨论了在未来的电子离子山利区（EIC）中搜索它们的可能性。
Recently BESIII collaboration discovered a charged strange hidden-charm state $Z_{cs}$(3985) in the $D_s^-D^{*0} + D_s^{*-}D^{0}$ spectrum. A higher $Z'_{cs}$ state coupling to $\bar{D}_s^{*-}D^{*0}$ is expected by SU(3)-flavor symmetry, and their bottom partners are anticipated by heavy quark flavor symmetry. Here we study the photoproduction of these exotic states and investigate carefully the background from Pomeron exchange. Our results indicate that the maximal photoproduction cross section of strange partner is around 1 $\sim$ 2 orders of magnitude smaller than that of the corresponding non-strange states. The possibility of searching for them in future electron-ion colliders (EIC) is briefly discussed.
