pi. /sup 4/He scattering in the region of the (3,3) resonance and problems of multiple scattering theory

Journal Article · Thu Nov 01 04:00:00 EST 1979 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5177821

Kopaleishvili, T I; Skhirtladze, V S

In the region of the (3,3) resonance a study has been made of ..pi../sup 4/He scattering in terms of multiple-scattering theory by the first-order optical-potential method with use of two different formulations of the theory: that of Watson and that of Kerman, McManus, and Thaler. The difference of the results obtained in these two formulations in the impulse approximation is used to select the best version of the impulse approximation. It is shown that the Galilean-invariant impulse approximation is clearly better than the Galilean-noninvariant approximation which is ordinarily used. Also studied is the applicability of the approximation of factorization of the optical potential in the region of the (3,3) resonance and it is shown that use of this approximation can lead to spurious ideas regarding pion-nucleus dynamics.

• Research Organization: Tbilisi State University
• OSTI ID: 5177821
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 30:5; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

651215* -- Nuclear Properties & Reactions
A=1-5
Theoretical-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED-PARTICLE REACTIONS
ENERGY RANGE
FACTORIZATION
HADRON REACTIONS
HELIUM 4 TARGET
IMPULSE APPROXIMATION
INELASTIC SCATTERING
KINETICS
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
MULTIPLE SCATTERING
NUCLEAR REACTION KINETICS
NUCLEAR REACTIONS
OPTICAL MODELS
PION REACTIONS
REACTION KINETICS
SCATTERING
TARGETS