Inelastic scattering of polarized protons from sup 4 He at 500 and 800 MeV

Journal Article · Mon Jun 01 04:00:00 EDT 1992 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.45.2578· OSTI ID:7286338

Sterbenz, S M; Dehnhard, D; Jones, M K; Nanda, S K; Parman, C E; Yen, Y ^[1]; Jones, K W; Morris, C L ^[2]

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1. University of Minnesota, Minneapolis, Minnesota 55455 (United States)
2. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

Inclusive {sup 4}He({ital {rvec p}},{ital p}{prime}) spectra were measured at incident energies {ital T}{sub {ital p}}=500 and 800 MeV over a range of forward scattering angles between 5{degree} and 30{degree}. The first excited 0{sup +}, {ital T}=0 state at 20.1 MeV and the 2{sup {minus}}, {ital T}=0 state at 22.1 MeV appear as distinct structures in the spectra. Angular distributions of differential cross sections {sigma} and analyzing powers {ital A}{sub {ital y}} were extracted for these states and for regions of excitation in the continuum up to 40 MeV. Distorted-wave calculations for inelastic scattering using transition densities from the recoil corrected continuum shell model (RCCSM) were compared with the data. The RCCSM generally predicts too small {sigma} and too large {ital A}{sub {ital y}}. Assuming a pure giant monopole excitation for the 20.1-MeV, 0{sup +} state, we found greater giant monopole resonance strength than has been deduced from {sup 4}He({ital e},{ital e}{prime}) studies.

• OSTI ID: 7286338
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 45:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

663430 -- Nucleon-Induced Reactions & Scattering-- (1992-)
663510* -- Nuclear Mass Ranges-- A=1-5-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
ANGULAR DISTRIBUTION
BARYON REACTIONS
BEAMS
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DIRECT REACTIONS
DISTORTED WAVE THEORY
DISTRIBUTION
DWBA
ENERGY RANGE
GIANT RESONANCE
HADRON REACTIONS
HELIUM 4 TARGET
INCLUSIVE INTERACTIONS
INELASTIC SCATTERING
INTERACTIONS
KNOCK-OUT REACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR REACTIONS
NUCLEON REACTIONS
PARTICLE INTERACTIONS
POLARIZED BEAMS
PROTON REACTIONS
RESONANCE
SCATTERING
TARGETS