Momentum Dependence of the Nuclear Isovector Spin Responses from ( p → , n → ) Reactions at 494 MeV

Complete sets of polarization transfer coefficients have been measured for quasifree ([ital [rvec p]],[ital [rvec n]]) scattering from [sup 2]H, [sup 12]C, and [sup 40]Ca at 494 MeV and scattering angles of 12.5[degree], 18[degree], and 27[degree] ([ital q]=1.2,1.7,2.5 fm[sup [minus]1]). These measu...

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Bibliographic Details
Published in:Physical review letters 1994-12, Vol.73 (26), p.3516-3519
Main Authors: Taddeucci, T. N., Luther, B. A., Rybarcyk, L. J., Byrd, R. C., McClelland, J. B., Prout, D. L., DeLucia, S., Cooper, D. A., Marchlenski, D. G., Sugarbaker, E., Park, B. K., Sams, Thomas, Goodman, C. D., Rapaport, J., Ichimura, M., Kawahigashi, K.
Format: Article
Language:English
Subjects:
663300 > Nuclear Reactions & Scattering, General-- (1992-)
ANGULAR MOMENTUM
BARYON REACTIONS
BARYONS
CALCIUM 40 TARGET
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CORRELATIONS
DEUTERIUM TARGET
DIRECT REACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FUNCTIONS
HADRON REACTIONS
HADRONS
ISOVECTORS
MEV RANGE
MEV RANGE 100-1000
NEUTRONS
NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
PARTICLE PROPERTIES
POLARIZATION
PROTON REACTIONS
QUASI-FREE REACTIONS
RESPONSE FUNCTIONS
SPIN
TARGETS
TENSORS
VECTORS 663430 > Nucleon-Induced Reactions & Scattering-- (1992-)
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Summary:Complete sets of polarization transfer coefficients have been measured for quasifree ([ital [rvec p]],[ital [rvec n]]) scattering from [sup 2]H, [sup 12]C, and [sup 40]Ca at 494 MeV and scattering angles of 12.5[degree], 18[degree], and 27[degree] ([ital q]=1.2,1.7,2.5 fm[sup [minus]1]). These measurements yield separated transverse ([sigma] [times]/I[ital q]) and longitudinal ([sigma] [center dot]/I[ital q]) isovector spin responses. Comparison of the separated responses to calculations and to electron-scattering responses reveals a strong enhancement in the spin transverse channel. This excess transverse strength masks the effect of pionic correlations in the response ratio.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.73.3516