Deep exclusive electroproduction of {pi}{sup +} from data measured with the HERMES detector at DESY

Journal Article · Sat Aug 15 04:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.028202· OSTI ID:21290099

Kaskulov, Murat M; Mosel, Ulrich ^[1]

---

1. Institut fuer Theoretische Physik, Universitaet Giessen, D-35392 Giessen (Germany)

Deeply virtual electroproduction of pions in an exclusive reaction p(e,e{sup '}{pi}{sup +})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{sup 2}>1 GeV{sup 2} and W{sup 2}>10 GeV{sup 2}. At forward angles the {pi}{sup +} cross section is longitudinal and is dominated by exchange of Regge poles, with {pi} being the dominant trajectory. The off-forward region with -t>1 GeV{sup 2} is transverse and shows the dominance of partonic subprocesses. An implication of the present results for the future JLab facilities is briefly discussed.

• OSTI ID: 21290099
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 2 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CEBAF ACCELERATOR
CROSS SECTIONS
DEEP INELASTIC SCATTERING
ELECTROPRODUCTION
NUCLEAR REACTIONS
PIONS PLUS
REACTION KINETICS
REGGE POLES
TRAJECTORIES