利用QCD求和规则探索重夸克偶素混杂态谱
高能物理 - 唯象学
2015-04-30 v2
摘要
采用QCD拉普拉斯求和规则计算了多个不同通道中的重夸克偶素（粲偶素和底偶素）混杂态质量。以往对重夸克偶素混杂态的研究未包含量纲为六的凝聚项的影响，导致在某些通道中求和规则不稳定且质量预测不可靠。我们更新了这些求和规则以纳入量纲为六的凝聚项，为重夸克偶素混杂态谱提供了新的质量预测。我们确认了其他方法得到的结论，即负宇称态构成最轻的混杂态超多重态，而正宇称态属于一个更重的超多重态。我们的结果不支持将解释为纯粲偶素混杂态，这与先前的工作一致。
引用
@article{arxiv.1410.6259,
title = {Exploring the Spectrum of Heavy Quarkonium Hybrids with QCD Sum Rules},
author = {R. T. Kleiv and B. Bulthuis and D. Harnett and T. Richards and Wei Chen and J. Ho and T. G. Steele and Shi-Lin Zhu},
journal= {arXiv preprint arXiv:1410.6259},
year = {2015}
}
备注
Presented by RTK at the Theory Canada 9 Conference, held at Wilfrid Laurier University in June 2014. Submitted for the conference proceedings to be published in the Canadian Journal of Physics. 5 pages, 1 figure. Version 2: reference added, typo corrected