论文标题
新观察的状态$ x（2600）$的gluonic性质
Gluonic nature of the newly observed state $X(2600)$
论文作者
论文摘要
由BESIII合作的新观察到的共鸣$ X（2600）$的动机，我们在QCD Sum规则的框架中检查了Trigluon Glueball的解释。我们评估具有量子数$ 0^{ - +} $和$ 2^{ - +} $的Trigluon粘合球的质谱，直至操作员产品扩展中的尺寸8凝聚力。我们的数值结果表明，$ 2^{ - +} $ trigluon粘合球的质量约为$ 2.66 \ pm 0.06 $ GEV，这与不确定性内的x（2600）质量一致，而$ 0^{ - +} $的质量为$ 2.01 \ pm0.14 $ gev。分析了$ 2^{ - +} $状态的可能的衰减渠道，这对于解码$ x（2600）$的内部结构至关重要，希望在Besiii，Belleii，Panda和LHCB实验中可以测量。
Motivated by the newly observed resonance $X(2600)$ by BESIII Collaboration, we examine the trigluon glueball interpretation for it in the framework of QCD sum rules. We evaluate the mass spectra of the trigluon glueballs with quantum numbers $0^{-+}$ and $2^{-+}$ up to dimension 8 condensate in the operator product expansion. Our numerical results indicate that the mass of the $2^{-+}$ trigluon glueball is about $2.66\pm 0.06$ GeV, which is consistent with the mass of the X(2600) within the uncertainties, while $0^{-+}$ has a mass of $2.01\pm0.14$ GeV. The possible decay channels of the $2^{-+}$ state are analyzed, which are crucial in decoding $X(2600)$'s internal structure and are hopefully measurable in BESIII, BEllEII, PANDA, and LHCb experiments.
