Article
Exclusive Electroproduction of ρ0 and J/ψ Mesons at HERA
European Physical Journal C
Document Type
Article
Publication Date
1-1-1999
Disciplines
Abstract
Exclusive production of ρ0 and J/ψ mesons in e+p collisions has been studied with the ZEUS detector in the kinematic range 0.25 < Q2 < 50 GeV2, 20 < W < 167 GeV for the ρ0 data and 2 < Q2 < 40 GeV2, 50 < W < 150 GeV for the J/ψ data. Cross sections for exclusive ρ0 and J/ψ production have been measured as a function of Q2, W and t. The spin-density matrix elements r0400, r11-1i and Re r510 have been determined for exclusive ρ0 production as well as r0400 and r041-1 for exclusive J/ψ production. The results are discussed in the context of theoretical models invoking soft and hard phenomena.
DOI
https://doi.org/10.1007/s100529901051
First Department
Physics
Acknowledgements
Open access article retrieved June29, 2021 from https://link.springer.com/article/10.1007/s100529901051
Citation Information
J. Breitweg, S. Chekanov, M. Derrick, D. Krakauer, et al.. "Exclusive Electroproduction of ρ0 and J/ψ Mesons at HERA" European Physical Journal C Vol. 6 Iss. 4 (1999) p. 603 - 627 Available at: http://works.bepress.com/margarita_mattingly/57/