Quark indistinguishability and the structure functions of the nucleon in a field-theoretic quark model

Journal Article · Sat Mar 01 04:00:00 EST 1980 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.21.1231· OSTI ID:5587092

Misra, S P

We consider here a specific mechanism for the deep-inelastic electron-nucleon scattering in a field-theoretic quark model introduced earlier. This process is assumed to be equivalent to the electron and proton going over to the electron and a system of three free quarks as a quantum-mechanical transition. The above amplitude is expected to yield the valence contribution to the structure function which is estimated. It is noticed that the wave function generating the structure function for the nucleon with incoherent scattering and the structure function generated in the above quantum-mechanical transition are not equivalent when SU(6) -symmetry breaking is included, which arises due to the indistinguishability of quarks of the hadron and to kinematic effects arising from bound quarks becoming ''free.'' Similar exchange effects are also noticed in the calculation of the charge radius of the nucleon. The differences in these transitions as opposed to conventional quark-parton models are illustrated with a simple wave function with SU(6) -symmetry breaking.

• Research Organization: Institute of Physics, A/105 Saheed Nagar, Bhubaneswar-751007, India
• OSTI ID: 5587092
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 21:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
COMPOSITE MODELS
DEEP INELASTIC SCATTERING
ELECTRON-NUCLEON INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FUNCTIONS
HADRONS
INELASTIC SCATTERING
INTERACTIONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LIE GROUPS
MATHEMATICAL MODELS
MECHANICS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTON MODEL
QUANTUM MECHANICS
QUARK MODEL
SCATTERING
STRUCTURE FUNCTIONS
SU GROUPS
SU-6 GROUPS
SYMMETRY BREAKING
SYMMETRY GROUPS
WAVE FUNCTIONS