Production of excited charm and charm-strange mesons at HERA

Open Access
Authors
  • S. Chekanov
  • [Unknown] et al.
  • G. Grigorescu
  • A. Keramidas
Publication date 2009
Journal European Physical Journal C
Volume | Issue number 60 | 1
Pages (from-to) 25-45
Organisations
  • Faculty of Science (FNWI) - Institute of Physics (IoP) - Institute for High Energy Physics (IHEF)
Abstract
The production of excited charm, D-1(2420)(0) and D-2*(2460)(0), and charm-strange, D-s1(2536)(+/-), mesons in ep collisions was measured with the ZEUS detector at HERA using an integrated luminosity of 126 pb(-1). Masses, widths and helicity parameters were determined. The measured yields were converted to the rates of c quarks hadronising as a given excited charm meson and to the ratios of the dominant D-2*(2460)(0) and D-s1(2536)(+/-), branching fractions. A search for the radially excited charm meson, D*'(2640)(+/-), was also performed. The results are compared with those measured previously and with theoretical expectations.
Document type Article
Published at https://doi.org/10.1140/epjc/s10052-009-0881-x
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