Electroproduction of ρ0 mesons

I. Cohen, R. Erickson, F. Messing, E. Nordberg, R. Siemann, J. Smith-Kintner, P. Stein, A. Sadoff, G. Drews, W. Gebert, F. Janata, P. Joos, A. Ladage, H. Nagel, H. Preissner, and P. Söding
Phys. Rev. D 25, 634 – Published 1 February 1982
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Abstract

Cross sections for ρ0 electroproduction measured in a streamer-chamber experiment are separated into elastic (epepρ0) and inelastic production channels. For the elastic channel, the total cross section and t dependence are presented. For the inelastic channel (1σ)dσdz, (1σ)dσdpT2, and a density matrix element are shown and compared to quark-parton-model predictions. The ratio of ρ0 to direct π0 production is found to be 2.0±0.5±0.3, where the first error is statistical, and the second error is systematic.

  • Received 16 September 1981

DOI:https://doi.org/10.1103/PhysRevD.25.634

©1982 American Physical Society

Authors & Affiliations

I. Cohen*, R. Erickson, F. Messing, E. Nordberg, R. Siemann, J. Smith-Kintner, and P. Stein

  • Cornell University, Ithaca, New York 14853

A. Sadoff

  • Ithaca College, Ithaca, New York 14850

G. Drews, W. Gebert§, F. Janata, P. Joos, A. Ladage, H. Nagel§, H. Preissner, and P. Söding

  • Institut für Experimentalphysik der Universität Hamburg, Hamburg, Germany and Deutsches Elektronen-Synchrotron (DESY), Hamburg, Germany

  • *Now at Tektronix, Inc., Beaverton, Oregon 97005.
  • Now at SLAC, Stanford, California 94305.
  • Now at Carnegie-Mellon University, Pittsburgh, Pennsylvania 15213.
  • §Now at Beiersdorf AG, Hamburg, Germany.
  • Now at Gesamthochschule Wuppertal, Wuppertal, Germany.

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Issue

Vol. 25, Iss. 3 — 1 February 1982

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