Published October 2015 | Version v1
Journal article

NLO QCD corrections to ηc+hc(1P)/ψ1,2(1D) production at B-factories

  • 1. CAS Center for Excellence in Particle Physics, Beijing 100049 (China)
  • 2. School of Physics, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing 100049 (China)

Description

We calculate the next-to-leading order (NLO) quantum chromodynamics (QCD) corrections to double charmonium production processes e+e → γ* → ηc+hc(1P)/ψ1,2(1D) within the non-relativistic QCD (NRQCD) factorization framework. We find that the corrections to ηc+hc(1P) production are positive, while those to ηc1,2(1D) are negative. Unlike the J/ψ+ηc 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

Availability note (English)

Available from http://dx.doi.org/10.1088/1674-1137/39/10/103101; Available from http://repo.scoap3.org/record/12285

Additional details

Publishing Information

Journal Title
Chinese Physics. C, High Energy Physics and Nuclear Physics
Journal Volume
39
Journal Issue
10
Journal Page Range
[5 p.]
ISSN
1674-1137