Effective interactions and nuclear structure using 180 MeV protons. I. sup 16 O( p , p prime )

Journal Article · Fri Jun 01 04:00:00 EDT 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.41.2504· OSTI ID:6805881

Kelly, J J; Finn, J M; Bertozzi, W; Buti, T N; Hersman, F W; Hyde-Wright, C; Hynes, M V; Kovash, M A; Murdock, B; Ulmer, P; Bacher, A D; Emery, G T; Foster, C C; Jones, W P; Miller, D W; Berman, B L ^[1]

---

1. University of Maryland; College Park; Maryland 20742 (US) College of William and Mary; Williamsburg; Virginia 23185 Massachusetts Institute of Technology; Cambridge; Massachusetts 02139 IBM Corporation; Hopewell Junction; New York 12533 University of New Hampshire; Durham; New Hampshire 03824 University of Washington; Seattle; Washington 98195 Los Alamos National Laboratory; Los Alamos; New Mexico 87545 University of Kentucky; Lexington; Kentucky 40506 Tektronics; Inc.; Beaverton; Oregon 97077 Indiana University; Bloomington; Indiana 47405 Bowdoin College; Brunswick; Maine 04011 George Washington University; Washington; DC 20052

Differential cross sections and analyzing powers for scattering of 180 MeV protons by {sup 16}O have been measured for all narrow states below 12.1 MeV of excitation. Medium modifications to the effective interaction for normal-parity isoscalar transitions were studied using transition densities determined by electron scattering to minimize nuclear structure uncertainties. An empirical effective interaction, guided by nuclear matter theory, was fitted to inelastic scattering data for six states simultaneously. Distorted waves were generated from self-consistent optical potentials computed from the same effective interaction. The isoscalar effective interaction determined by this procedure provides a good global fit to the inelastic scattering data and is consistent with elastic scattering data that were not included in the fit. The results are consistent with earlier results for 135 MeV and show that the effective interaction is suppressed at low density but is less density dependent than predicted by nuclear matter theory and the local density approximation. These comparisons suggest effects in finite nuclei beyond the local density approximation. Finally, we compare data for 0{sup {minus}} and 2{sup {minus}} states at both 135 and 180 MeV with representative calculations.

• OSTI ID: 6805881
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 41:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651320* -- Nuclear Properties & Reactions
A=6-19
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
ANALYZING POWER
ANGULAR MOMENTUM
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
CYCLIC ACCELERATORS
CYCLOTRONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
HADRON REACTIONS
INELASTIC SCATTERING
INFORMATION
ISOCHRONOUS CYCLOTRONS
ISOTOPES
IU CYCLOTRON
LIGHT NUCLEI
MATTER
MEV RANGE
MEV RANGE 100-1000
NUCLEAR MATTER
NUCLEAR REACTIONS
NUCLEAR STRUCTURE
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
OPTICAL MODELS
OXYGEN 16
OXYGEN 16 TARGET
OXYGEN ISOTOPES
PARITY
PARTICLE PROPERTIES
PROTON REACTIONS
SCATTERING
SPIN
STABLE ISOTOPES
TARGETS