English

$J/\psi + c + \bar{c}$ Photoproduction in $e^+ e^-$ Scattering

High Energy Physics - Phenomenology 2008-11-26 v2

Abstract

We investigate the J/ψJ/\psi + c + cˉ\bar{c} photoproduction in e+ee^+ e^- collision at the LEP II energy. The physical motivations for this study are: 1) such next-to-leading order(NLO) process was not considered in previous investigations of J/ψJ/\psi photoproduction in e+ee^+ e^- interaction, and it is worthwhile to do so in order to make sound predictions for experimental comparison; 2) from recent Belle experiment results, the process with same final states at the BB factory has a theoretically yet unexplainable large fraction; hence it is interesting to see what may happen at other colliders; 3) the existing LEP data are marginal in observing such process, and at the planed Linear Colliders(LCs) this process can be measured with high accuracy; 4) it is necessary to take this process into consideration in the aim of elucidating the quarkonium production mechanism, especially in testing the universality of NRQCD nonperturbative matrix elements via J/ψJ/\psi photoproduction in electron-position collisions.

Keywords

Cite

@article{arxiv.hep-ph/0308244,
  title  = {$J/\psi + c + \bar{c}$ Photoproduction in $e^+ e^-$ Scattering},
  author = {Cong-Feng Qiao and Jian-Xiong Wang},
  journal= {arXiv preprint arXiv:hep-ph/0308244},
  year   = {2008}
}

Comments

15 pages, 3 figures

R2 v1 2026-07-22T13:49:39.247Z