y scaling in quasielastic electron scattering from nuclei

Journal Article · Mon Oct 15 04:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.044613· OSTI ID:21067825

Kim, K S; Wright, L E ^[1]

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1. School of Liberal Arts and Science, Korea Aerospace University, Koyang 412-791 (Korea, Republic of)

A relativistic single-particle model is used to calculate the inclusive (e,e{sup '}) reaction from A=12, 40, 56, 197, and 208 nuclei in the quasielastic region. We have shown that this model provides a very good description of the available experimental cross sections when they are dominated by the quasielastic process. In this paper, we use this model to investigate the dependence of y scaling on electron kinematics, particularly the electron scattering angle, for a range of squared four-momentum transfer of 0.20-0.80 (GeV/c){sup 2}. In this kinematic domain, Coulomb distortion of the electron does not significantly affect scaling, but final state interactions of the knocked out nucleon do affect scaling, particularly when the nucleons have lower energies. In general, we find that scaling works for this reaction, but at lower values of the four-momentum transfer, the scaling function does have some dependence on the electron scattering angle. We also consider a modification of y scaling to include small binding energy effects as a function of Z and A and show that there is some improvement in scaling.

• OSTI ID: 21067825
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 76; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BINDING ENERGY
COULOMB FIELD
CROSS SECTIONS
ELECTRON REACTIONS
ELECTRONS
FINAL-STATE INTERACTIONS
FOUR MOMENTUM TRANSFER
GEV RANGE
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
LIGHT NUCLEI
NUCLEONS
PARTICLE KINEMATICS
QUASI-ELASTIC SCATTERING
RELATIVISTIC RANGE
SCALING LAWS
SINGLE-PARTICLE MODEL