Journalartikel

Jahr der Veröffentlichung: 2010

Zeitschrift: Physical Review C

Bandnummer: 81

Heftnummer: 4

ISSN: 0556-2813

eISSN: 1089-490X

Open Access Status: Green

DOI Link: https://doi.org/10.1103/PhysRevC.81.045202

Verlag: American Physical Society

Abstract: 
A description of exclusive charged-pion electroproduction (e,e'pi(+/-)) off nucleons at high energies is proposed. The model combines a Regge pole approach with the residual effect of nucleon resonances. The exchanges of pi(140), vector rho(770), and axial-vector a(1)(1260) and b(1)(1235) Regge trajectories are considered. The contribution of nucleon resonances is described using a dual connection between the exclusive hadronic form factors and inclusive deep inelastic structure functions. The model describes the measured longitudinal, transverse, and interference cross sections at the Thomas Jefferson Lab National Accelerator Facility (JLAB) and the Deutsches Elektronen Synchrotron. The scaling behavior of the cross sections is in agreement with JLAB and deeply virtual HERMES data. The results for a polarized beam-spin azimuthal asymmetry in ((e) over right arrow ,e'pi(+/-)) are presented. Model predictions for JLAB at 12 GeV are given.

Harvard-Zitierstil: Kaskulov, M. and Mosel, U. (2010) Deep exclusive charged π electroproduction above the resonance region, Physical Review C, 81(4), Article 045202. https://doi.org/10.1103/PhysRevC.81.045202

APA-Zitierstil: Kaskulov, M., & Mosel, U. (2010). Deep exclusive charged π electroproduction above the resonance region. Physical Review C. 81(4), Article 045202. https://doi.org/10.1103/PhysRevC.81.045202