Three-body model for pion deuteron elastic scattering
Creators
Description
The three-body formalism is applied to the πd elastic scattering in the energy range 25 to 256 MeV. In the (3,3) resonance region, we use either the fully relativistic approach of Aaron, Amado and Young, or the semi-relativistic approach where relativistic kinematics are only used for the pion. The effects of the NN tensor force and of the 'small' πN channels (S and P πN channels other than P33) on the πd observables (differential cross-section and polarizations) are estimated. In the low energy domain (T(π)<=70 MeV) we concentrate on the approximate treatment of Coulomb effects. The full scattering amplitude is splitted into Coulomb and nuclear amplitudes. The Coulomb correction on the nuclear phase shift is approximately evaluated using the method of Streit et al
Abstract (French)
Le formalisme a 3 corps est applique a la diffusion elastique πd dans un domaine d'energie 25 a 256 MeV. Dans la region de la resonance (3,3), on utilise soit l'approche entierement relativiste de Aaron, Amado et Young, soit l'approche semi-relativiste ou la cinematique relativiste est seulement utilisee pour le pion. Les effets de la force tenseur NN et des voies πN (voies S et PπN autres que P33) sur les observables πd (sections efficaces differentielles et polarisation) ont ete estimees. Dans le domaine basse energie (T(π)<=70 MeV) on se consacre au traitement approximatif de l'interaction coulombienne. L'amplitude de diffusion est divisee en amplitude coulombienne et amplitude nucleaire. La correction coulombienne du dephasage nucleaire a ete evaluee approximativement par la methode de Streit et alAdditional details
Additional titles
- Original title (French)
- Description de la diffusion elastique pion-deuton dans un modele a trois corps
Publishing Information
- Imprint Title
- 5. Biennial session on nuclear physics
- Journal Page Range
- p. C15.1-C15.13.
- Report number
- LYCEN--7902
Conference
- Title
- 5. Biennial session on nuclear physics.
- Dates
- 5 - 9 Mar 1979.
- Place
- Aussois, France.
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 11520213
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- COMPILED DATA; COULOMB CORRECTION; DEUTERIUM TARGET; DIFFERENTIAL CROSS SECTIONS; ELASTIC SCATTERING; EXPERIMENTAL DATA; GRAPHS; MEV RANGE 10-100; MEV RANGE 100-1000; PHASE SHIFT; PION REACTIONS; THEORETICAL DATA; THREE-BODY PROBLEM
- Descriptors DEC
- CORRECTIONS; CROSS SECTIONS; DATA; DATA FORMS; ENERGY RANGE; HADRON REACTIONS; INFORMATION; MANY-BODY PROBLEM; MESON REACTIONS; MEV RANGE; NUCLEAR REACTIONS; NUMERICAL DATA; SCATTERING; TARGETS
Optional Information
- Notes
- Imprint:5. Session d'etudes biennale de physique nucleaire.