Published 1975
| Version v1
Report
Open
Comparison between γN→πN and πN→rhoN in the resonance region up to √s=1.75GeV via the vector-dominance-model
Description
The helicity amplitudes are displayed for the Nrho system for each J(P) state of the Nπ system in the reaction Nπ→Nrho. The amplitudes are obtained from a K-matrix fit to amplitudes of the reaction Nπ→Nπ and Nπ→Nππ (via the isobar model). We then take either: 1) these amplitudes or: 2) the resonance couplings estimated from these amplitudes and compare them to the photoproduction amplitudes via the V.D.M. Two possible kinematics are considered for the Nrho system below it threshold. These four methods give a range in which the V.D.M. can be accommodated even at this low energy
Availability note (English)
MF available from INIS under the Report Number.Abstract (French)
On donne les amplitudes d'helicie du systeme Nrho pour chaque etat J(P) du systeme Nπ dans la reaction Nπ→Nrho. On obtient ces amplitudes a partir d'un ajustement de la matrice K pour les amplitudes de la reaction Nπ→Nπ et Nπ→Nππ (a l'aide du modele isobar). On prend ensuite soit: 1) ces amplitudes, soit: 2) les constantes de couplage deduites de ces amplitudes de photoproduction a travers le modele de dominance vectorielle. On considere deux cinematiques possibles pour le systeme Nrho en dessous du seuil. Ces quatre modeles donnent un domaine dans lequel le modele a dominance vectoriel peut etre adapte meme a cette faible energieFiles
7245632.pdf
Files
(861.1 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:0ef5377cb539d565342b02f9d97d9ae4
|
861.1 kB | Preview Download |
Additional details
Publishing Information
- Imprint Pagination
- 10 p.
- Report number
- CEA-CONF--3278
Conference
- Title
- 1975 high energy particle physics conference.
- Dates
- 23 Jun 1975.
- Place
- Palermo, Italy.
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 7245632
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COUPLING; GEV RANGE 01-10; HELICITY; K MATRIX; NUCLEONS; PARTIAL WAVES; PION-NUCLEON INTERACTIONS; RHO-765 RESONANCES; SCATTERING AMPLITUDES; VECTOR DOMINANCE MODEL
- Descriptors DEC
- AMPLITUDES; BARYONS; BOSONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; MATHEMATICAL MODELS; MATRICES; MESON RESONANCES; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; MESONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; RESONANCE PARTICLES