Document Type
Article
Publication Date
1-1-1999
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.
Journal Title
European Physical Journal C
Volume
6
Issue
4
First Page
603
Last Page
627
DOI
10.1007/s100529901051
First Department
Physics
Recommended Citation
Breitweg, J.; Chekanov, S.; Derrick, M.; Krakauer, D.; Magill, S.; Mikunas, D.; Musgrave, B.; Repond, J.; Stanek, R.; Talaga, R. L.; Yoshida, R.; Zhang, H.; Mattingly, Margarita C. K.; Anselmo, F.; Antonioli, P.; Bari, G.; Basile, M.; Bellagamba, L.; Boscherini, D.; Bruni, A.; Bruni, G.; Cara Romeo, G.; Castellini, G.; Cifarelli, L.; Cindolo, F.; Contin, A.; Coppola, N.; Corradi, M.; de Pasquale, S.; Giusti, P.; and Iacobucci, G., "Exclusive Electroproduction of ρ0 and J/ψ Mesons at HERA" (1999). Faculty Publications. 2460.
https://digitalcommons.andrews.edu/pubs/2460
Acknowledgements
Open access article retrieved June29, 2021 from https://link.springer.com/article/10.1007/s100529901051