Final-state interactions in semi-inclusive deep inelastic scattering off the deuteron

Journal Article · Fri Jul 15 04:00:00 EDT 2011 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.84.014601· OSTI ID:21596581

Cosyn, W; Sargsian, M ^[1]

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1. Department of Physics, Florida International University, Miami, Florida 33199 (United States)

Semi-inclusive deep inelastic scattering off the deuteron with production of a slow nucleon in recoil kinematics is studied in the virtual nucleon approximation, in which the final-state interaction (FSI) is calculated within generalized eikonal approximation. The cross section is derived in a factorized approach, with a factor describing the virtual photon interaction with the off-shell nucleon and a distorted spectral function accounting for the final-state interactions. One of the main goals of the study is to understand how much the general features of the diffractive high-energy soft rescattering accounts for the observed features of FSI in deep inelastic scattering (DIS). Comparison with the Jefferson Lab data shows good agreement in the covered range of kinematics. Most importantly, our calculation correctly reproduces the rise of the FSI in the forward direction of the slow nucleon production angle. By fitting our calculation to the data we extracted the W and Q{sup 2} dependencies of the total cross section and slope factor of the interaction of DIS products, X, off the spectator nucleon. This analysis shows the XN-scattering cross section rising with W and decreasing with an increase of Q{sup 2}. Finally, our analysis points at a largely suppressed off-shell part of the rescattering amplitude.

• OSTI ID: 21596581
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 1 Vol. 84; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
AMPLITUDES
APPROXIMATIONS
BARYONS
BOSONS
CALCULATION METHODS
CEBAF ACCELERATOR
CHARGED PARTICLES
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
CROSS SECTIONS
DEEP INELASTIC SCATTERING
DEUTERONS
EIKONAL APPROXIMATION
ELEMENTARY PARTICLES
EVALUATION
FERMIONS
FINAL-STATE INTERACTIONS
FUNCTIONS
HADRONS
INELASTIC SCATTERING
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LINEAR ACCELERATORS
MASSLESS PARTICLES
NUCLEONS
PARTICLE INTERACTIONS
PHOTONS
RECOILS
RESCATTERING
SCATTERING
SIMULATION
SPECTRAL FUNCTIONS
TOTAL CROSS SECTIONS