Study of the reaction ppbold-arrow-left-rightd. pi. /sup +/ at low pion energies

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

OSTI ID:5958684

Efrosinin, V P; Zaikin, D A; Osipchuk, I I

In the present paper we discuss the need to take into account off-mass-shell behavior of the s-wave ..pi..N amplitude with one pion off the mass shell in the calculations of the cross sections for pion production in nucleon--nucleon collisions near threshold and in the calculations of similar processes in nuclear matter in order to make it possible to interpret the parameters of the pion-nucleus optical potential. The total cross sections and angular distributions for the ppbold-arrow-left-rightd..pi../sup +/ reaction, and also the analyzing power for the p-italic-arrow-rightpbold-arrow-left-rightd..pi../sup +/ reaction at low pion energies (eta = q/sub ..pi..//..mu../sub ..pi../<1), are calculated taking into account the one- and two-nucleon mechanisms of pion production (absorption). In the approximation of s- and p-wave pions, reasonable agreement with experimental data in the region etaless than or equal to0.5 is achieved.

• Research Organization: Nuclear Research Institute, USSR Academy of Sciences
• OSTI ID: 5958684
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 45:6; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

653001 -- Nuclear Theory-- Nuclear Structure
Moments
Spin
&amp; Models
653003* -- Nuclear Theory-- Nuclear Reactions &amp; Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BOSONS
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
DEUTERONS
DIRECT REACTIONS
ELEMENTARY PARTICLES
HADRON REACTIONS
HADRONS
HYDROGEN 1 TARGET
MESONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OPTICAL MODELS
PICKUP REACTIONS
PIONS
PIONS PLUS
PROTON REACTIONS
PSEUDOSCALAR MESONS
TARGETS
TRANSFER REACTIONS