Inclusive decays of eta(b) into S- and P-wave charmonium states
Inclusive decays of eta(b) into S- and P-wave charmonium states
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DOI：
10.1016/j.physletb.2010.08.013
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发表时间：
2009-10
影响因子：
4.4
通讯作者：
Zhi He;Bai-Qing Li
中科院分区：
文献类型：
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作者：
Zhi He;Bai-Qing Li
在η分解方法的框架下，在强耦合常数α和夸克原子内部相对速度v的前导阶处，计算了底原子基态NRQCD衰变中包括S波和P波的能量产生.我们发现[公式：见正文]和[公式：见正文]的贡献对于包含性J/ψ在η海湾中的产生也是非常重要的，这可能有助于在即将到来的LHCB和Superb中对包含性J/ψ产生中颜色-八重态机制的研究。作为补充，我们还研究了ηc和χc在η态中的包含性产生，这可能有助于我们理解X(3940)和X(3872)态。
Inclusive S- and P-wave charmonium productions in the bottomonium ground state ηbdecay are calculated at the leading order in the strong coupling constant αsand quarkonium internal relative velocity v in the framework of the NRQCD factorization approach. We find the contribution of [Formula: see text] followed by [Formula: see text] is also very important to inclusive J/ψ production in the ηbdecays, which maybe helpful to the investigation of the color-octet mechanism in the inclusive J/ψ production in the ηbdecays in the forthcoming LHCb and SuperB. As a complementary work, we also study the inclusive production of ηc, and χcJin the ηbdecays, which may help us understand the X(3940) and X(3872) states.