NLO QCD Corrections to ${\eta }_c+h_c(1P)/{\psi }_{1,2}(1D)$ Production at B-factories

Abstract

We calculate the next-to-leading order (NLO) quantum chromodynamics (QCD) corrections to double charmonium production processes $e^{+}{e}^{-}\to {\gamma }^{\ast }\to {\eta }_c+h_c(1P)/{\psi }_{1,2}(1D)$ within the non-relativistic QCD (NRQCD) factorization framework. We find that the corrections to ${\eta }_c+h_c(1P)$ production are positive, while those to ${\eta }_c+{\psi }_{1,2}(1D)$ are negative. Unlike the $J/\psi +{\eta }_c$ case, all the corrections here are not large. Uncertainties in the renormalization scale, quark mass and running energy of center-of-mass are discussed, and the scale dependence of these processes is found to be greatly reduced with the NLO QCD corrections.

5 pages, 7 figures; revised version

References in corpus (12)

• Algorithm FIRE -- Feynman Integral REduction
• Constituent quark model study of the meson spectra
• $Apart: A Generalized Mathematica Apart Function
• QCD corrections to J/psi plus eta_c production in e+e- annihilation at sqrt{s}=10.6 GeV
• Double charm production e^+ e^- \to J/ψ+ c \bar{c} at B factories with next-to-leading order QCD corrections
• Evidence of a new narrow resonance decaying to ${\chi }_{c1}\gamma$ in $B\to {\chi }_{c1}\gamma K$
• Spectra of heavy mesons in the Bethe-Salpeter approach
• Observation of the $\psi (1^3{D}_2)$ state in $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\gamma {\chi }_{c1}$ at BESIII
• Next-to-Leading-Order QCD Corrections to e+ e- --> J/psi c c_bar at the B Factories
• Color Transfer in Associated Heavy-Quarkonium Production
• $O({\alpha }_s{v}^2)$ correction to $e^{+}{e}^{-}\to J/\psi +{\eta }_c$ at $B$ factories
• Factorization theorems for exclusive heavy-quarkonium production

Cited by in corpus (1)

• Inclusive $h_c$ production and energy spectrum from $e^{+}{e}^{-}$ annihilation at Super $B$ factory