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arXiv 1504.06102hep-ex
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BESIII实验中的XYZ物理

XYZ physics at BESIII experiment

Zhiqing Liu

摘要:

位于北京正负电子对撞机(BEPCII)上的BESIII实验具有4~GeV能量以上的运行能力,是寻找和研究类粲夸克态($XYZ$粒子)的先驱。2013年,BESIII合作组发现了一个带电的类粲夸克态$Z_c(3900)$,并立即得到了实验证实,为目前四夸克态提供了最佳候选者。BESIII合作组的连续研究表明$Z_c(3900)$有新的衰变行为,可能存在伙伴粒子$Z_c(4020)/Z_c(4025)$。通过4~GeV以上的扫描,BESIII还首次揭示了$Y(4260)$和$X(3872)$之间的潜在联系,这可能有助于我们从一个新的视角理解$XYZ$粒子。

英文摘要:

With the ability to run above 4~GeV, the BESIII experiment located in the Beijing Electron Positron Collider (BEPCII), has becoming a pioneer in searching and studying charmoniumlike states ($XYZ$ particles). In 2013, BESIII Collaboration discovered a charged charmoniumlike state $Z_c(3900)$, which is confirmed immediately experimentally, and provides the best candidate for a four quark state by now. Continuous studies by BESIII Collaboration show new decay behavior of $Z_c(3900)$, and there are possible partner particle $Z_c(4020)/Z_c(4025)$ existing. By scanning above 4~GeV, BESIII also reveals the potential connection between $Y(4260)$ and $X(3872)$ for the first time, which may help us understand $XYZ$ particles in a new sight.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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