Nucleon knockout from polarized sup 3 He by polarized protons at 290 MeV

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

DOI:https://doi.org/10.1103/PhysRevC.46.1167· OSTI ID:6948728

Rahav, A; Haeusser, O; Woloshyn, R M; Chupp, T E; Delheij, P P.J.; Ferguson, K; Henderson, R; Jackson, K P; Levy, C D.P.; Mildenberger, J; Miller, C A; Morrissette, B; Vetterli, M C ^[1]

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1. Simon Fraser University, Burnaby, British Columbia, V5A 1S6 (Canada) TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3 (Canada) The Physics Laboratories, Harvard University, Cambridge, Massachusetts 02138 (United States)

The {sup 3}H{rvec e}({ital {rvec p}},2{ital p}) and {sup 3}H{rvec e}({ital {rvec p}},{ital pn}) knockout reactions were observed in quasielastic kinematics at 290 MeV. Spin observables {ital A}{sub {ital n}0}, {ital A}{sub 0{ital n}}, and {ital A}{sub {ital n}{ital n}} were obtained for both reactions. Calculations using the plane wave impulse approximation (PWIA) and the free nucleon-nucleon scattering amplitudes were performed and compared with the data. The proton knockout data are in qualitative agreement with the calculations which predict {ital A}{sub {ital n}{ital n}} to be sensitive to the presence of mixed-symmetry {ital S}{prime} components in the {sup 3}He wave function. Proton spins are expected to be exactly paired at momenta {ital q}{approx}80 MeV/{ital c}, in agreement with the {ital A}{sub {ital n}{ital n}} data. Spin observables {ital A}{sub 0{ital n}} and {ital A}{sub {ital n}{ital n}} for the {sup 3}H{rvec e}({ital {rvec p}},{ital pn}) reaction deviate significantly from the PWIA predictions. The qualitative differences between proton and neutron knockout results may be caused by final-state interaction effects.

• OSTI ID: 6948728
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 46:4; 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
ANGULAR MOMENTUM
BARYON REACTIONS
BEAMS
CHARGED-PARTICLE REACTIONS
DATA
DIRECT REACTIONS
ENERGY RANGE
EXPERIMENTAL DATA
HADRON REACTIONS
HELIUM 3 TARGET
IMPULSE APPROXIMATION
INFORMATION
KNOCK-OUT REACTIONS
MEV RANGE
MEV RANGE 100-1000
NEUTRON SPECTRA
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUMERICAL DATA
PARTICLE PROPERTIES
POLARIZED BEAMS
POLARIZED TARGETS
PROTON REACTIONS
PROTON SPECTRA
SPECTRA
SPIN
TARGETS