Strong absorption and noneikonal effects in antiproton--nucleus scattering

Journal Article · Sat Aug 01 04:00:00 EDT 1987 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5184720

Zavarzina, V P; Sergeev, V A

In connection with the successful description of the low- and medium-energy antiproton--nucleus interaction within the framework of the Glauber-Sitenko theory we consider the role of strong absorption in these processes. On the basis of an analytic method of calculations we study the connection between the eikonal scattering amplitude, the total cross section, and the reaction cross section with the model of a black nucleus with diffuse boundary. We present examples showing how the effective radius of the black nucleus for the antiprotons is determined in terms of geometrical parameters of the nuclear density and of the parameters of the elementary p-barN scattering amplitude. We show that the noneikonal corrections to the imaginary part of the scattering amplitude and to the reaction cross section are small under the conditions of strong absorption. The angular range in which the noneikonal corrections to the real part of the antiproton--nucleus scattering amplitude could manifest themselves is discussed.

• Research Organization: Nuclear Research Institute, USSR Academy of Sciences
• OSTI ID: 5184720
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 46:2; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ABSORPTION
ANTINUCLEON REACTIONS
ANTIPROTON REACTIONS
BARYON REACTIONS
CROSS SECTIONS
GLAUBER THEORY
HADRON REACTIONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS