Effective interaction for [sup 16]O([ital p],[ital p][prime]) and [sup 40]Ca([ital p],[ital p][prime]) at [ital E][sub [ital p]]=200 MeV

Journal Article · Thu Apr 01 04:00:00 EST 1993 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.47.1615· OSTI ID:6611018

Seifert, H; Kelly, J J; Feldman, A E; Flanders, B S; Khandaker, M A ^[1]; Chen, Q; Bacher, A D; Berg, G P.A.; Stephenson, E J ^[2]; Karen, P; Norum, B E; Welch, P ^[3]; Scott, A ^[4]

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1. Department of Physics, University of Maryland, College Park, Maryland 20742 (United States)
2. Department of Physics, Indiana University, Bloomington, Indiana 47401 (United States)
3. Department of Physics, University of Virginia, Charlottesville, Virginia 22901 (United States)
4. Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602 (United States)

Differential cross sections and analyzing powers for scattering of 200 MeV protons have been measured for states of [sup 16]O up to 14.4 MeV and for states of [sup 40]Ca up to 7.2 MeV of excitation. The data cover c.m. momentum transfers from approximately 0.4 fm[sup [minus]1] to 3.0 fm[sup [minus]1]. Calculations were performed using several density-dependent effective interactions in the local density approximation. Empirical effective interactions from isoscalar normal-parity transitions were fitted to elastic and inelastic scattering data for [sup 16]O and [sup 40]Ca either individually or simultaneously. Transition densities from electron scattering were used to minimize uncertainties due to nuclear structure. The fitted interactions were iterated to generate optical potentials self-consistently. We find that the empirical interaction, although strongly dependent on the local density, is essentially independent of target or state. We also find that the empirical interaction is reduced in strength at zero density. Finally, the results were compared with a relativistic impulse approximation model and with a recent global optical potential from Dirac phenomenology.

• OSTI ID: 6611018
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 47:4; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

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663520 -- Nuclear Mass Ranges-- A=6-19-- (1992-)
663540 -- Nuclear Mass Ranges-- A=39-58-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
BARYON REACTIONS
CALCIUM 40 TARGET
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DIFFERENTIAL EQUATIONS
DIRAC EQUATION
ELASTIC SCATTERING
ENERGY RANGE
EQUATIONS
HADRON REACTIONS
IMPULSE APPROXIMATION
INELASTIC SCATTERING
MEV RANGE
MEV RANGE 100-1000
NUCLEAR FORCES
NUCLEAR REACTIONS
NUCLEON REACTIONS
OPTICAL MODELS
OXYGEN 16 TARGET
PARTIAL DIFFERENTIAL EQUATIONS
PROTON REACTIONS
SCATTERING
TARGETS
WAVE EQUATIONS