2000/11/10 by Felix Sefkow, Sefkow, Felix
Physics and Astronomy · Social Sciences · #Cultural Industries and Urban Development #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/0011034
Proceedings, ICHEP 2000, Osaka, Japan. 3 pages, 6 figures
arxiv created 2000/11/10 · openalex publication_date 2000/11/10 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Selected new results from the H1 and ZEUS collaborations on ep interactions at 300 - 318 GeV centre-of-mass energy are presented. The full pre-upgrade integrated luminosity of HERA of 110 pb-1 is used. Charm cross sections are measured up to high values of xB and Q2 and are found to be well described by NLO QCD in the 3 flavour scheme. Orbitally excited D mesons are observed; radial excitations are searched for, but are not seen. The first b cross section measurement is confirmed with a lifetime based method, establishing the excess over NLO QCD.