NLO QCD Corrections for $χ_{cJ}$ Inclusive Production at $B$ Factories

Abstract

The next-to-leading order (NLO) quantum chromodynamics (QCD) corrections for1 ), the P-wave charmoniums inclusive production at B factories are calculated utilizing the non-relativistic QCD (NRQCD) factorization formalism. Large NLO corrections are found, especially for 3 P [1] 0 and 3 S [8] 1 configurations. Numerical evaluation indicates that the total cross sections of χ cJ inclusive production processes are at the order of 10fb, which are accessible in BELLE II(super-B) experiment.

NLO QCD Corrections to $η_c+h_c(1P)/ψ_{1,2}(1D)$ Production at B-factories

“…[13,14]. Recently, a complete NLO calculation for the P-wave charmonium χ cJ ( 3 P [1] J , 3 S [8] 1 ) inclusive production processes e + e − → χ cJ + cc/gg/q q(q = u, d, s) was carried out [15]. Though so far there are insufficient data on the double excited charmonium exclusive processes e + e − → γ * → H 1 +H 2 * , theoretical studies have already started [3,16], and even the NLO corrections for J/ψ+χ cJ production at B-factories [17,18] have been performed.…”