English

D-wave Charmonium Production in $e^+e^-$ Annihilation at $\sqrt{s}=10.6$ GeV

High Energy Physics - Phenomenology 2011-03-23 v2

Abstract

We calculate the D-wave charmonium production in e+ee^+e^- annihilation at BELLE and BABAR at s=10.6\sqrt{s}=10.6 GeV using the nonrelativistic QCD factorization formalism, including color singlet and color octet contributions. We analyze the contributions of various processes for δJ(J=1,2)\delta_J(J=1,2) production. We find that both the color singlet and color octet channels may give substantial contributions, and the production rates are estimated to be σ(δ1)0.0430.16pb\sigma (\delta_1)\simeq 0.043-0.16pb and σ(δ2)0.0940.29pb\sigma (\delta_2)\simeq 0.094-0.29pb, which, however, are very sensitive to the choice of the color octet matrix elements of the D-wave charmonium states. The measurement of D-wave charmonium production at BABAR and BELLE in the future will be very helpful to test the color octet mechanism and to determine the color octet matrix elements.

Keywords

Cite

@article{arxiv.hep-ph/0206226,
  title  = {D-wave Charmonium Production in $e^+e^-$ Annihilation at $\sqrt{s}=10.6$ GeV},
  author = {Li-Kun Hao and Kui-Yong Liu and Kuang-Ta Chao},
  journal= {arXiv preprint arXiv:hep-ph/0206226},
  year   = {2011}
}

Comments

9 pages, 1 figure, final version to appear in Physics Letters B