Nuclear medium modification of nucleons via a Bethe ansatz model

Journal Article · Mon Apr 01 00:00:00 EST 1991 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.43.1967· OSTI ID:5712385

Villate, J E; Koltun, D S ^[1]

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1. Department of Physics, University of Rochester, Rochester, New York 14627 (US)

The modification of the internal structure of nucleons inside the nucleus is investigated within the context of a constituent quark model, in which quarks interact forming bound clusters that act as nucleons. The elastic form factor, the momentum distribution, the correlation function, and the Coulomb sum rule are calculated. The contribution to these structure functions arising from nucleon degrees of freedom is identified by means of an impulse approximation, in which the quark structure of nucleons is assumed to be unaffected by other nucleons, and the dynamics of nucleons is given by an effective theory, extracted from our quark model. The effect of the modification of the nucleon is found to be noticeable on the elastic form factor at large momentum transfer, and on the Coulomb sum rule. A cluster approximation is also used to study the extent to which these effects are due to exchange of quarks.

• DOE Contract Number: FG02-88ER40425
• OSTI ID: 5712385
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Vol. 43:4; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEONS
QUARK MODEL
CLUSTER MODEL
COLOR MODEL
CORRELATION FUNCTIONS
ENERGY SPECTRA
FERMIONS
FORM FACTORS
HAMILTONIANS
IMPULSE APPROXIMATION
MOMENTUM TRANSFER
NUCLEAR MATTER
SCHROEDINGER EQUATION
STRONG INTERACTIONS
STRUCTURE FUNCTIONS
SUM RULES
BARYONS
BASIC INTERACTIONS
COMPOSITE MODELS
DIFFERENTIAL EQUATIONS
ELEMENTARY PARTICLES
EQUATIONS
FUNCTIONS
HADRONS
INTERACTIONS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MATTER
NUCLEAR MODELS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE MODELS
PARTICLE PROPERTIES
QUANTUM OPERATORS
SPECTRA
WAVE EQUATIONS
653001* - Nuclear Theory- Nuclear Structure
Moments
Spin
& Models