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Deep exclusive electroproduction of π + from data measured with the HERMES detector at DESY

Deep exclusive electroproduction of π + from data measured with the HERMES detector at DESY Deeply virtual electroproduction of pions in an exclusive reaction p ( e , e ' π + ) n is studied using a two-component model that includes soft hadronic and hard partonic reaction mechanisms. The results are compared with the experimental data measured at HERMES in the deep inelastic region for values of Q 2 > 1 GeV 2 and W 2 > 10 GeV 2 . At forward angles the π + cross section is longitudinal and is dominated by exchange of Regge poles, with π being the dominant trajectory. The off-forward region with - t > 1 GeV 2 is transverse and shows the dominance of partonic subprocesses. An implication of the present results for the future JLab facilities is briefly discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review C American Physical Society (APS)

Deep exclusive electroproduction of π + from data measured with the HERMES detector at DESY

Physical Review C , Volume 80 (2) – Aug 1, 2009
4 pages

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Publisher
American Physical Society (APS)
Copyright
Copyright © 2009 The American Physical Society
ISSN
1089-490X
DOI
10.1103/PhysRevC.80.028202
Publisher site
See Article on Publisher Site

Abstract

Deeply virtual electroproduction of pions in an exclusive reaction p ( e , e ' π + ) n is studied using a two-component model that includes soft hadronic and hard partonic reaction mechanisms. The results are compared with the experimental data measured at HERMES in the deep inelastic region for values of Q 2 > 1 GeV 2 and W 2 > 10 GeV 2 . At forward angles the π + cross section is longitudinal and is dominated by exchange of Regge poles, with π being the dominant trajectory. The off-forward region with - t > 1 GeV 2 is transverse and shows the dominance of partonic subprocesses. An implication of the present results for the future JLab facilities is briefly discussed.

Journal

Physical Review CAmerican Physical Society (APS)

Published: Aug 1, 2009

There are no references for this article.