Published October 19, 2009
| Version v1
Journal article
The role of the background in the extraction of resonance contributions from meson-baryon scattering
- 1. Institut fuer Kernphysik and Juelich Center for Hadron Physics, Forschungszentrum Juelich, D-52425 Juelich (Germany)
- 2. Institute for Advanced Simulation, Forschungszentrum Juelich, D-52425 Juelich (Germany)
- 3. Department of Physics and Astronomy, University of Georgia, Athens, GA 30602 (United States)
- 4. Helmholtz-Institut fuer Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, Universitaet Bonn, Nussallee 14-16, D-53115 Bonn (Germany)
Description
The separation of background and resonance contributions in pion-nucleon scattering is an often discussed issue. We investigate to what extent the background can be separated from the pole contribution. For illustration we use results from an analytic model for the meson-baryon interaction derived from meson exchange. We focus on the two distinct cases of an elastic and a highly inelastic resonance, namely the Δ(1232) and the Δ*(1700). Our results are also relevant for studies of dynamically generated resonances and attempts to extract bare quantities from hadronic models to be compared to quark model results.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physletb.2009.09.052Additional details
Identifiers
- DOI
- 10.1016/j.physletb.2009.09.052;
- arXiv
- arXiv:0903.1781v2;
- PII
- S0370-2693(09)01131-9;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 681
- Journal Issue
- 1
- Journal Page Range
- p. 26-31
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41086196
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BOSON-EXCHANGE MODELS; DELTA-1232 BARYONS; EXTRACTION; PION-NUCLEON INTERACTIONS; QUARK MODEL; RESONANCE PARTICLES
- Descriptors DEC
- BARYONS; COMPOSITE MODELS; DELTA BARYONS; ELEMENTARY PARTICLES; FERMIONS; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; MATHEMATICAL MODELS; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; N*BARYONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PERIPHERAL MODELS; SEPARATION PROCESSES
Optional Information
- Copyright
- Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.