Semi-analytical calculation of gluon fragmentation into ${}^1{S}_0^{[1,8]}$ quarkonia at next-to-leading order

Peng Zhang, Chen-Yu Wang, Xiao Liu +3

We calculate the NLO corrections for the gluon fragmentation functions to a heavy quark-antiquark pair in ${}^1{S}_0^{[1]}$ or ${}^1{S}_0^{[8]}$ s…