English

Recent Results on Charm Photoproduction

High Energy Physics - Experiment 2015-06-25 v1

Abstract

Photoproduction of Ds±D_s^{\pm} mesons has been measured in the ZEUS detector at HERA and compared with predictions of NLO pQCD calculations. The ratio of Ds±D_s^{*\pm} to D±D^{*\pm} cross sections has been compared to results from e+ee^{+}e^{-} experiments. Orbitally excited P-wave charm mesons have been observed in the D±πD^{*\pm}\pi^{\mp} final state. The fraction of D±D^{*\pm} 's originating from these mesons has been calculated and compared with that from e+ee^{+}e^{-} interactions. No evidence for radially excited mesons decaying to D±π+πD^{*\pm}\pi^{+}\pi^{-} was found. The inelastic production of J/ψ\psi mesons has been measured and compared to LO and NLO pQCD predictions.

Keywords

Cite

@article{arxiv.hep-ex/0010050,
  title  = {Recent Results on Charm Photoproduction},
  author = {Don Hochman},
  journal= {arXiv preprint arXiv:hep-ex/0010050},
  year   = {2015}
}

Comments

7 pages, 4 figures, Talk given at the PHOTON 2000 Conference, Ambleside, UK, August 26-31,2000

R2 v1 2026-07-22T12:58:55.392Z