Recently, the LHCb Collaboration reported their observation of the first two fully open-flavor tetraquark states named (2900) and (2900) with unknown parity. Inspired by the report, we consider all the possible four-quark candidates for X(2900), which include the molecular structure, diquark structure, and their coupling in a chiral quark model via the Gaussian expansion method. To identify the genuine resonances, the real-scaling method (stabilization method) was employed. Our results show that five possible resonances, with MeV, with MeV, with MeV, with MeV, and with MeV, originate in the system. Compared with experimental data, with MeV may be an optimal candidate. However, none of the resonances have a similar width for . Hence, further study is required.

最近，LHCb Collaboration 报告了他们对前两个完全开放的四夸克状态的观察，命名为(2900) 和(2900)，但奇偶性未知。受该报告的启发，我们考虑了X (2900) 的所有可能的四夸克候选者，包括分子结构、双夸克结构以及它们通过高斯展开方法在手性夸克模型中的耦合。为了识别真正的共振，采用了实际缩放方法（稳定方法）。我们的研究结果表明，五种可能的共振，与兆电子伏，与兆电子伏，与兆电子伏，与兆电子伏，并与兆电子伏，起源于系统中。与实验数据相比，与MeV的可以是一个最佳的候选者。然而，对于 ，没有任何共振具有相似的宽度。因此，需要进一步研究。