Deep-inelastic scattering from off-shell nucleons

Journal Article · Tue Feb 01 04:00:00 EST 1994 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.49.1183· OSTI ID:5409315

Melnitchouk, W ^[1]; Schreiber, A W ^[2]; Thomas, A W ^[1]

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1. Department of Physics and Mathematical Physics, University of Adelaide, Adelaide, South Australia 5005 (Australia)
2. Paul Scherrer Institut, Wuerenlingen und Villigen, CH-5232 Villigen PSI (Switzerland)

We derive the general structure of the hadronic tensor required to describe deep-inelastic scattering from an off-shell nucleon within a covariant formalism. Of the large number of possible off-shell structure functions we find that only three contribute in the Bjorken limit. In our approach the usual ambiguities encountered when discussing problems related to off shellness in deep-inelastic scattering are not present. The formulation therefore provides a clear framework within which one can discuss the various approximations and assumptions which have been used in earlier work. As examples, we investigate scattering from the deuteron, nuclear matter, and dressed nucleons. The results of the full calculation are compared with those where various aspects of the off-shell structure are neglected, as well as with those of the convolution model.

• OSTI ID: 5409315
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 49:3; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
DEEP INELASTIC SCATTERING
DEUTERIUM TARGET
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
HADRONS
INELASTIC SCATTERING
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MATTER
NUCLEAR MATTER
NUCLEONS
PARTICLE INTERACTIONS
SCATTERING
STRUCTURE FUNCTIONS
TARGETS