Transverse electron scattering response function of {sup 3}He with {Delta}-isobar degrees of freedom

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.054003· OSTI ID:21499158

Luping, Yuan ^[1]; Efros, Victor D ^[2]; Leidemann, Winfried ^[1]; Tomusiak, Edward L ^[3]

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1. Dipartimento di Fisica, Universita di Trento, I-38100 Trento (Italy)
2. Russian Research Centre, Kurchatov Institute, 123182 Moscow (Russian Federation)
3. Department of Physics and Astronomy, University of Victoria, Victoria, British Columbia, V8P 1A1 (Canada)

A calculation of the {sup 3}He transverse (e,e{sup '}) inclusive response function, R{sub T}, which includes {Delta} degrees of freedom, is performed using the Lorentz integral transform method. The resulting coupled equations are treated in impulse approximation, where the NNN and NN{Delta} channels are solved separately. As NN and NNN potentials, we use the Argonne V18 and Urbana IX models, respectively. Electromagnetic currents include the {Delta}-isobar currents, one-body N currents with relativistic corrections, and two-body currents consistent with the Argonne V18 potential. R{sub T} is calculated for the breakup threshold region at momentum transfers near 900 MeV/c. Our results are similar to those of Deltuva et al. in that large {Delta}-isobar current contributions are found. However, we find that these are largely canceled by the relativistic contribution from the one-body N currents. Finally, a comparison is made between theoretical results and experimental data.

• OSTI ID: 21499158
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 82, Issue 5; Other Information: DOI: 10.1103/PhysRevC.82.054003; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
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IMPULSE APPROXIMATION
INTEGRAL TRANSFORMATIONS
LORENTZ TRANSFORMATIONS
MEV RANGE 100-1000
MOMENTUM TRANSFER
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ENERGY RANGE
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LEPTONS
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MANY-BODY PROBLEM
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STABLE ISOTOPES
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