论文标题
高度兴奋和异国情调的四分之一tetrangark国家
Highly excited and exotic fully-strange tetraquark states
论文作者
论文摘要
某些Hadron具有传统的$ \ bar q q $中的异国量子数字和$ qqq $ baryons无法到达，例如$ j^{pc} = 0^{ - }/0^{+ - }/1^{ - +} { - +}/2^{ - +}/2^{+ - } {+ - }/3^^{ - +} { - +} { - +} $} $} $ j^{pc} = 4^{+ - } $，并以如此异国情调的量子数来研究完全震动的四夸克状态。我们系统地构建所有diquark-antidiquark插值电流，并应用QCD总规则的方法来计算对角线和非对角线相关功能。获得的结果用于构建几乎不相关的三个混合电流，我们使用其中一个将最低状态的质量提取为$ 2.85^{+0.19} _ { - 0.22} $ gev。我们将FIFEZ重排将这种混合电流转换为三个介子 - 梅森电流的组合，而获得的Fierz身份表明，该状态主要衰减到$ p $ -Wave $ ϕ（1020）f_2^\ prime（1525）$。 $ j^{pc} = 4^{+ - } $的这种完全巨大的四夸克状态是一个纯粹的异国强化强子，可以在将来的粒子实验中观察到。
Some hadrons have the exotic quantum numbers that the traditional $\bar q q$ mesons and $qqq$ baryons can not reach, such as $J^{PC} = 0^{--}/0^{+-}/1^{-+}/2^{+-}/3^{-+}/4^{+-}$, etc. We investigate for the first time the exotic quantum number $J^{PC}=4^{+-}$, and study the fully-strange tetraquark states with such an exotic quantum number. We systematically construct all the diquark-antidiquark interpolating currents, and apply the method of QCD sum rules to calculate both the diagonal and off-diagonal correlation functions. The obtained results are used to construct three mixing currents that are nearly non-correlated, and we use one of them to extract the mass of the lowest-lying state to be $2.85^{+0.19}_{-0.22}$ GeV. We apply the Fierz rearrangement to transform this mixing current to be the combination of three meson-meson currents, and the obtained Fierz identity suggests that this state dominantly decays into the $P$-wave $ϕ(1020) f_2^\prime(1525)$ channel. This fully-strange tetraquark state of $J^{PC}=4^{+-}$ is a purely exotic hadron to be potentially observed in future particle experiments.
