The {gamma}p {yields} {pi}0{eta}p and related reactions in a chiral dynamical approach

Journal Article · Tue Jul 11 04:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2220296· OSTI ID:20873341

Doring, M; Oset, E ^[1]; Strottman, D ^[1]

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1. Departamento de Fisica Teorica, Centro Mixto Universidad de Valencia-CSIC, Institutos de Investigation de Paterna, Aptd. 22085, 46071 Valencia (Spain)

Using a chiral unitary approach for meson-baryon scattering in the strangeness zero sector, where the N*(1535) and {delta}*(1700) resonances are dynamically generated, we study the reactions {gamma}p {yields} {pi}0{eta}p and {gamma}p {yields} {pi}0K0{sigma}+ at photon energies at which the final states are produced close to threshold. Among several reaction mechanisms, we find the most important is the excitation of the {delta}*(1700) state which subsequently decays into a pseudoscalar meson and the N*(1535). Hence, the reaction provides useful information with which to test current theories of the dynamical generation of the low-lying 1/2- and 3/2- states. Predictions are made for cross sections and invariant mass distributions which can be compared with forthcoming experiments at ELSA.

• OSTI ID: 20873341
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 842; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRALITY
CROSS SECTIONS
DELTA-1700 BARYONS
ETA MESONS
EXCITATION
KAONS NEUTRAL
MASS DISTRIBUTION
N-1535 BARYONS
NUCLEAR REACTION KINETICS
PARTICLE DECAY
PHOTON-PROTON INTERACTIONS
PHOTONS
PHOTOPRODUCTION
PION-HYPERON INTERACTIONS
PION-KAON INTERACTIONS
PION-PROTON INTERACTIONS
PROTONS
SIGMA BARYONS
STRANGENESS