B-meson Semi-inclusive Decay to $2^{-+}$ Charmonium in NRQCD and X(3872)

Ying Fan, Jin-Zhao Li, Ce Meng +1

The semi-inclusive B-meson decay into spin-singlet D-wave $2^{-+}$ charmonium, $B\to {\eta }_{c2}+X$, is studied in nonrelativistic QCD (NRQCD). Both color-singlet and color-octet contri…