AI 中文总结
该研究针对奇特强子谱学的核心挑战，利用重夸克自旋对称耦合道框架，通过D^{(\u2217)0}D_{(s)}^{(\u2217)-}系统的飞秒关联函数，为探测W_{c1}态及同位旋矢量C偶区域提供了首个直接探针。
AI 中文摘要
理解奇特态Z_c(3900)和Z_{cs}(3985)的性质，以及寻找X(3872)的预测同位旋矢量伙伴W_{c1}，是奇特强子谱学的核心挑战。我们研究D^{(\u2217)0}D_{(s)}^{(\u2217)-}系统的飞秒关联函数（CFs）。由于这些粲介子-反介子对不是G宇称本征态，其CFs包含C奇和C偶区域的贡献，可直接探测Z_c、Z_{cs}及预测的同位旋矢量奇特态W_{c1}的动力学。在重夸克自旋对称耦合道框架内，我们表明C偶混合态在阈值附近将低动量CFs提升超过2.5σ。这些通道无库仑畸变，可在LHC的高多重数pp碰撞中获得，为同位旋矢量C偶区域及难以捉摸的W_{c1}态提供首个直接飞秒探针。
英文摘要
Understanding the nature of the exotic $Z_c(3900)$ and $Z_{cs}(3985)$ states, and searching for the predicted isovector partner $W_{c1}$ of the $X(3872)$, remain central challenges in exotic-hadron spectroscopy. We investigate the femtoscopic correlation functions (CFs) of the $D^{(\ast)0}D_{(s)}^{(\ast)-}$ systems. Since these charm-meson--antimeson pairs are not $G$-parity eigenstates, their CFs contain contributions from both the $C$-odd and $C$-even sectors, providing direct access to the dynamics underlying the $Z_c$, $Z_{cs}$, and the predicted isovector exotic $W_{c1}$. Within a heavy-quark-spin-symmetric coupled-channel framework, we show that the $C$-even admixture enhances the low-momentum CFs by more than $2.5σ$ in the vicinity of their thresholds. Free from Coulomb distortions and accessible in high-multiplicity $pp$ collisions at the LHC, these channels offer the first direct femtoscopic probe of the isovector $C$-even sector and of the elusive $W_{c1}$ state.
Comments14 pages, 8 fugyres
