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arXiv 1108.4458hep-phhep-exnucl-th
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$Υ(11020)$暗底双介子衰变中的荷电底偶素结构

Charged bottomonium-like structures in the hidden-bottom dipion decays of $Υ(11020)$

Dian-Yong Chen, Xiang Liu, Takayuki Matsuki

摘要:

在初始单π介子发射机制下,我们研究了$Υ(11020)$的隐底双π衰变,即,$Υ(11020)\to Υ(nS)π^+π^-$ $(n=1,2,3)$和$Υ(11020)\to h_b(mP)π^+π^-$ $(m=1,2)$。我们预测明确的尖锐峰结构接近的$B\bar{B}^*$和$B^*\bar{B}^*$阈值和它们的反射在$Υ(1S)π^+$,$Υ(2S)π^+$和$h_b(1P)π^+$不变的质谱分布。我们建议未来的实验,即,Belle、BaBar和即将到来的Belle II或Super-B等对这些新现象进行了探索,这将为更高底栖生物中存在的初始单次发射机制提供重要的检验。

英文摘要:

Under the Initial Single Pion Emission mechanism, we study the hidden-bottom dipion decays of $Υ(11020)$, i.e., $Υ(11020)\to Υ(nS)π^+π^-$ $(n=1,2,3)$ and $Υ(11020)\to h_b(mP)π^+π^-$ $(m=1,2)$. We predict explicit sharp peak structures close to the $B\bar{B}^*$ and $B^*\bar{B}^*$ thresholds and their reflections in the $Υ(1S)π^+$, $Υ(2S)π^+$ and $h_b(1P)π^+$ invariant mass spectrum distributions. We suggest future experiment, i.e., Belle, BaBar, and forthcoming BelleII or Super-B, carry out the search for these novel phenomena, which can provide important test to the Initial Single Emission mechanism existing in higher bottomonia.

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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