Potential description of low-energy elastic pion scattering by /sup 4/He

Journal Article · Sun May 01 00:00:00 EDT 1983 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5386970

Khankhasaev, M K

Elastic ..pi../sup 4/He scattering is considered within the framework of a unitary potential approach based on the method of evolution in the coupling constant. In this approach the iteration procedure is constructed for the direct calculation of pion-nucleus scattering phase shifts. Second-order corrections to the first-order approximation of the theory studied earlier are calculated. It is shown that first two iterations suffice to describe potential elastic ..pi../sup 4/He scattering at pion energy below 70 MeV. A comparison between theory and experiment at 24 and 51 MeV indicates the significant role of the true-pion-absorption channel in describing low-energy pion-nucleus scattering.

• Research Organization: Joint Institute for Nuclear Research
• OSTI ID: 5386970
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 37:5; 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
COUPLING CONSTANTS
ELASTIC SCATTERING
ENERGY RANGE
HADRON REACTIONS
HELIUM 4 TARGET
ITERATIVE METHODS
MESON REACTIONS
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTIONS
PHASE SHIFT
PION REACTIONS
POTENTIAL SCATTERING
SCATTERING
SYMMETRY
TARGETS
UNITARY SYMMETRY