Deep exclusive charged pi electroproduction above the resonance region

Journal Article · Thu Apr 15 04:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.045202· OSTI ID:21388967

Kaskulov, Murat M; Mosel, Ulrich ^[1]

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

A description of exclusive charged-pion electroproduction (e,e{sup '}pi{sup +}-) 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{sub 1}(1260) and b{sub 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-vector,e{sup '}pi{sup +}-) are presented. Model predictions for JLAB at 12 GeV are given.

• OSTI ID: 21388967
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 81; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
A1-1260 MESONS
ACCELERATORS
ASYMMETRY
AXIAL VECTOR MESONS
B1-1235 MESONS
BASIC INTERACTIONS
BEAMS
BOSONS
CEBAF ACCELERATOR
CROSS SECTIONS
CYCLIC ACCELERATORS
DEEP INELASTIC SCATTERING
DIMENSIONLESS NUMBERS
ELECTROMAGNETIC INTERACTIONS
ELECTROPRODUCTION
ELEMENTARY PARTICLES
ENERGY RANGE
FORECASTING
FORM FACTORS
FUNCTIONS
GEV RANGE
GEV RANGE 10-100
HADRONS
INELASTIC SCATTERING
INTERACTIONS
INTERFERENCE
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LINEAR ACCELERATORS
MESONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PIONS
POLARIZED BEAMS
PSEUDOSCALAR MESONS
REGGE POLES
REGGE TRAJECTORIES
RESONANCE
RHO-770 MESONS
SCATTERING
STRUCTURE FUNCTIONS
SYNCHROTRONS
VECTOR MESONS