English

Processes $e^+e^- \to c \bar c c \bar c$ and $e^+e^- \to J/\psi +gg$ at $\sqrt{s}=10.59$ GeV

High Energy Physics - Phenomenology 2015-06-25 v2

Abstract

BELLE Collaboration data for J/ψJ/\psi inclusive production in the processes e+eJ/ψ+gge^+e^-\to J/\psi+gg and e+eJ/ψ+ccˉe^+e^-\to J/\psi +c\bar c have been discussed. These data have been compared with the predictions of two pQCD methods: the former method use the information about the J/ψJ/\psi wave function, the latter one do not use such information and is based on the quark-hadron duality hypothesis. Both these calculation methods lead to essential discrepancy between the theoretic predictions and the experimental data. The production cross section dependence on effective gluon mass has been investigated for the process e+eJ/ψ+gge^+e^-\to J/\psi+gg. The production cross section of doubly charmed baryons Ξcc\Xi ^{*}_{cc} has been estimated.

Keywords

Cite

@article{arxiv.hep-ph/0303145,
  title  = {Processes $e^+e^- \to c \bar c c \bar c$ and $e^+e^- \to J/\psi +gg$ at $\sqrt{s}=10.59$ GeV},
  author = {A. V. Berezhnoy and A. K. Likhoded},
  journal= {arXiv preprint arXiv:hep-ph/0303145},
  year   = {2015}
}

Comments

9 pages, 4 figures. In this version of the paper several important references have been added