학술논문
Exclusive ρ0 and Φ production in deep inelastic muon scattering
Document Type
Article
Author
Ashman, J.; Badelek, B.; Baum, G.; Beaufays, J.; Bee, C. P.; Benchouk, C.; Bird, I. G.; Brown, S. C.; Caputo, M. C.; Cheung, H. W. K.; Chima, J.; Ciborowski, J.; Clifft, R. W.; Coignet, G.; Combley, F.; Court, G.; D'Agostini, G.; Drees, J.; Düren, M.; Dyce, N.; Edwards, A. W.; Edwards, M.; Ernst, T.; Ferrero, M. I.; Foster, J.; Francis, D.; Gabathuler, E.; Gajewski, J.; Gamet, R.; Geddes, N.; Gibson, V.; Gillies, J.; Grafström, P.; Hamacher, K.; v. Harrach, D.; Hayman, P.; Heusch, C. A.; Holt, J. R.; Hughes, V. W.; Jacholkowska, A.; Janata, F.; Jancso, G.; Jones, T.; Kabuss, E. M.; Korzen, B.; Krüner, U.; Kullander, S.; Landgraf, U.; Lanske, D.; Lettenström, F.; Lindqvist, T.; Loken, J.; Matthews, M.; Mizuno, Y.; Mönig, K.; Montanet, F.; Nassalski, J.; Nagy, E.; Norton, P. R.; Oakham, G.; Oppenheim, R.; Osborne, A. M.; Papavassiliou, V.; Pavel, N.; Peroni, C.; Peschel, H.; Piegaia, R.; Pietrzyk, B.; Pietrzyk, U.; Pönsgen, B.; Povh, B.; Renton, P.; Ribarics, P.; Rith, K.; Rondio, L.; Ropelewski, L.; Salmon, D.; Sandacz, A.; Scheer, M.; Schiemann, H.; Schuler, K. P.; Schultze, K.; Shibata, T -A.; Sloan, T.; Staiano, A.; Stier, H. E.; Stock, J.; Studt, M.; Taylor, G. N.; Thompson, J. C.; Toth, J.; Wheeler, S.; Urban, L.; Walcher, T.; Williams, W. S. C.; Wimpenny, S. J.; Windmolders, R.; Womersley, W. J.
Source
Zeitschrift für Physik C Particles and Fields; June 1988, Vol. 39 Issue: 2 p169-175, 7p
Subject
Language
ISSN
01709739; 14315858
Abstract
Data are presented on exclusive ρ0 and ϕ production in deep inelastic muon scattering from a target consisting mainly of nitrogen. The ratio of the total cross sections for ρ0 and ϕ production is found to be 9∶(1.6±0.4) at 〈Q2 〉=7.5 GeV2 , consistent with theSU(3) prediction of 9∶2. Thet dependence for exclusive ρ0 production is found to become shallover asQ2 increases and, for largeQ2 , thet dependence is typical of that for a hard scattering process. Furthermore, the ratio of the cross sections for coherent: incoherent production from nitrogen is found to decrease rapidly withQ2 . Such behaviour indicates that even for exclusive vector meson production the virtual photon behaves predominantly as an electromagnetic probe.