Pion absorption on [sup 3]He. II. Antisymmetrization and angular decomposition of the Faddeev-based amplitude

Journal Article · Fri Oct 01 04:00:00 EDT 1993 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.48.1562· OSTI ID:6390879

Canton, L; Svenne, J P ^[1]; Cattapan, G ^[2]

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1. Physics Department, University of Manitoba, Winnipeg Institute for Theoretical Physics, Winnipeg, Manatoba, R3T 2N2 (Canada)
2. Departimento di Fisica, Universita di Padova, Istituto Nazionale di Fisica Nucleare, Via Marzolo 8, Padova I-35131 (Italy)

In order to develop a procedure for calculation of pion absorption on [sup 3]He, we perform the decomposition of the absorption amplitude in three-nucleon partial waves, with full inclusion of antisymmetrization effects among the nucleons. Within this formalism, the matrix elements of the [Delta]-rescattering term, believed to be the dominant elementary absorption mechanism, are evaluated and embedded in the full (Faddeev-based) nuclear dynamics. This implies the treatment of the 3[l arrow]3 and 2[l arrow]3 processes in the final state. Since no attempt is made to include distortions due to the four-body ([pi][ital NNN]) dynamics, the trinucleon bound-state wave function is the only requirement in the initial state.

• OSTI ID: 6390879
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 48:4; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663460* -- Meson- & Hyperon-induced Reactions & Scattering-- (1992-)
663510 -- Nuclear Mass Ranges-- A=1-5-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ABSORPTION
ASYMMETRY
BOUND STATE
CHARGED-PARTICLE REACTIONS
FUNCTIONS
HADRON REACTIONS
HELIUM 3 TARGET
MATRIX ELEMENTS
MESON REACTIONS
NUCLEAR REACTIONS
PARTIAL WAVES
PION REACTIONS
SORPTION
TARGETS
WAVE FUNCTIONS