论文标题
异国情调介子和重子的重耦机制
Recoupling Mechanism for exotic mesons and baryons
论文作者
论文摘要
一对介子（通道I）到另一对介子（通道II）中的无限链链也可以在两个通道中产生绑定的状态和共振，即使在通道内部不存在相互作用。这些在介子 - 巴里昂通道中也可能发生的共振称为通道耦合（CC）共振。提出了一种新的CC共振机制，即由于每个通道内部的限制字符串的重新排列而发生过渡。这种恢复机制的幅度通过参与介子（Baryons）的波函数的重叠积分表示。具有已知波功能的显式计算使$ e = 4.12 $ gev的峰值$ j/ψ + ϕ \ leftrightArrow d^*_ s + bar d^*_ s $，可以与$χ_{c1}（c1}}（4140）$ 3.98 $ g的$ 3.98 $ GEV相关$ d^{ - } _ s + d^*_ 0 \ leftrightArrow j/ψ + k^{* - }，$可以与最近发现的$ z_ {cs}（3985）$关联。
The infinite chain of transitions of one pair of mesons (channel I) into another pair of mesons (channel II) can produce bound states and resonances in both channels even if no interactions inside channels exist. These resonances which can occur also in meson-baryon channels are called channel-coupling (CC) resonances. A new mechanism of CC resonances is proposed where transitions occur due to a rearrangement of confining strings inside each channel -- the recoupling mechanism. The amplitude of this recoupling mechanism is expressed via overlap integrals of the wave functions of participating mesons (baryons). The explicit calculation with the known wave functions yields the peak at $E= 4.12$ GeV for the transitions $J/ψ+ ϕ\leftrightarrow D^*_s + \bar D^*_s $, which can be associated with $χ_{c1}(4140)$, and a narrow peak at $3.98$ GeV with the width $10$ MeV for the transitions $D^{-}_s + D^*_0 \leftrightarrow J/ψ+ K^{*-},$ which can be associated with the recently discovered $Z_{cs}(3985)$.
