Possible partner state of the Y (2175)
Possible partner state of the Y (2175)
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Y 可能的伙伴国 (2175)
DOI：
10.1103/physrevd.98.014011
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发表时间：
2018
影响因子：
5
通讯作者：
Zhu Shi-Lin
中科院分区：
文献类型：
--
作者：
Chen Hua-Xing;Shen Cheng-Ping;Zhu Shi-Lin
我们用QCD求和规则的方法来研究它。有两个独立的内插电流，我们计算了它们的对角和非对角关联函数。我们得到了两个相互关联不强的新电流，因此它们可能耦合到两个不同的物理状态：其中一个耦合到，而另一个可能耦合到另一个其质量被估计为的状态。后一种状态的证据可以在BABAR[B.Aubert(BABAR Collaboration)，Phys.首页--期刊主要分类--期刊细介绍--期刊题录与文摘--期刊详细文摘内容莱特牧师。访问数/每百万人：Reach for[(2008)PRLTAO0031-900710.1103/PhysRevLett.100.102003]， P.Rev.D 80,031101(2009)PRVDAQ1550-799810.1103/PhysRevD.80.031101]，和BESIII[M.Ablikim(BESIII协作)，Phys.D 91修订版，052017个(2015)PRVDAQ1550-799810.1103/PhysRevD.91.052017]实验。
We study theusing the method of QCD sum rules. There are two independentinterpolating currents with, and we calculate both their diagonal and their off-diagonal correlation functions. We obtain two new currents that do not strongly correlate to each other, so they may couple to two different physical states: one of them couples to the, while the other may couple to another state whose mass is evaluated to be. Evidence of the latter state can be found in theBABAR[B. Aubert (BABARCollaboration), Phys. Rev. D 76, 012008 (2007)PRVDAQ1550-799810.1103/PhysRevD.76.012008], BESII [M. Ablikim (BES Collaboration), Phys. Rev. Lett. 100, 102003 (2008)PRLTAO0031-900710.1103/PhysRevLett.100.102003], Belle [C. P. Shen (Belle Collaboration), Phys. Rev. D 80, 031101 (2009)PRVDAQ1550-799810.1103/PhysRevD.80.031101], and BESIII [M. Ablikim (BESIII Collaboration), Phys. Rev. D 91, 052017 (2015)PRVDAQ1550-799810.1103/PhysRevD.91.052017] experiments.