The Fragmentation Function of Gluon Splitting into P-wave Spin-singlet Heavy Quarkonium

Gang Hao, YaBing Zuo, Cong-Feng Qiao

The gluon fragmentation function of $g\to h_c$ at leading order of strong coupling constant ${\alpha }_s$ and typical velocity $v$ is calculated in the framework of NRQCD, of which the co…