X(3872), I^G(J^{PC})=0^+(1^{++})，作为 \chi_{c1}(2P) 粲偶素
摘要
与几乎标准的观点（即X(3872)共振是D^{*0}\bar D^0+c.c.分子或qc\bar q\bar c四夸克态）相反，我们讨论了X(3872)共振是c\bar c = \chi_{c1}(2P)粲偶素且“位于”D^{*0}\bar D^0阈值上的情景。我们通过虚拟D^*\bar D+c.c.中间态对X(3872)共振自能的贡献，解释了X(3872)共振质量相对于势模型对\chi_{c1}(2P)粲偶素质量预测的偏移。这使我们可以估计X(7872)共振与D^{*0}\bar D^0道的耦合常数、X(3872) \to D^{*0}\bar D^0 + c.c.衰变的分支比，以及X(3872)衰变到所有非D^{*0}\bar D^0 + c.c.态的分支比。我们预言了X(3872)通过两个胶子的大量未知衰变：X(3872)\to gluon\ gluon\to hadrons。我们提出了验证我们假设的清晰物理实验研究方案。
引用
@article{arxiv.1501.03583,
title = {X(3872), I^G(J^{PC})=0^+(1^{++}), as the \chi_{1c}(2P) charmonium},
author = {N. N. Achasov and E. V. Rogozina},
journal= {arXiv preprint arXiv:1501.03583},
year = {2015}
}
备注
7 pages, 3 figures, corrected typos, changed Abstract, added reference, added the phrase: <Such a transition \sim \sqrt{V_{\chi_{c1}(2P)}/V_{X(3872)}} and a branching ratio of a decay via such a transition \sim V_{\chi_{c1}(2P)}/V_{X(3872)}.> - in conclusion in comparison with the publication Mod. Phys. Lett. A , 30, 1550181 (2015). added clarifications