Asymmetries in charm production in fixed-target experiments
- 23 Downloads
From the experimentalist’s viewpoint the measurement of charm production asymmetries, the ratio of charm production cross-sections for particle and anti-particle, is a very productive field. Accurate measurements can be made that are largely free of systematic errors, and since leading-order QCD calculations produce no asymmetry, these measurements test fragmentation and other effects. Simple phenomenological models explain the gross features of the data, while a variety of more detailed models attempt to fit the rich details of the present data samples. This paper will briefly highlight the differences among a few of the theoretical models, and include a brief history of recent experimental measurements. New measurements from present experiments will be presented in more detail, with an emphasis on recent results from WA89, E687 and E791. This will be followed by a short summary of results expected in the near future from these and similar experiments, and by a shorter preview of the improvements expected in the next decade.
PACS13.85.Ni - Inclusive production with identified hadrons
PACS14.40.Lb - Charmed mesons
PACS25.80.Ls - Pion inclusive scattering and absorption
PACS01.30.Cc - Conference proceedings
Unable to display preview. Download preview PDF.
- Golubkov Y., DESY 94-060 (1994).Google Scholar
- Cremaldi L.,Proceedings of the XXVI International Conference on High Energy Physics, Dallas, Texas, August 1992, Vol.1, p. 1058.Google Scholar
- NA32Collaboration (S. Kwan),CERN Particle Physics Colloquium, March 1988.Google Scholar
- Garbincious P.,Proceedings of the Lafex International School in High Energy Physics, Centro Brasiliero de Pesquisas Fisicas (CBPF), Rio de Janeiro, Brazil, February 20, 1995.Google Scholar
- Gardner R.,Proceedings of the XXX Recontres de Moriond, Les Arcs, France, March 19–26, 1995.Google Scholar