Electromagnetic production of pions on the nucleon
The objective of this talk is to review the recent theoretical developments in the study of photo- and electro-production of pions on the nucleon. First, the author will discuss the results from the investigations in the near threshold region. The focus here is the test of pion dynamics as predicted by the theoretical models with chiral symmetry. The second subject of this talk is concerned with the deformation of the Delta ({Delta}) state. The central question here is how this interesting quantity is defined theoretically and related to the experiments being performed at MIT-Bates and Mainz. The author then will discuss briefly the higher energy region where the productions of higher mass nucleon resonances (N*) and two-pion states become important. The interest here is the test of {gamma}N {yields} N* matrix elements as predicted by various QCD-based models of hadrons.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10107526
- Report Number(s):
- ANL/PHY/CP-84618; CONF-940858-1; ON: DE95004658; TRN: AHC29505%%125
- Resource Relation:
- Conference: International conference on physics with GeV particle beams,Juelich (Germany),22-25 Aug 1994; Other Information: PBD: [1994]
- Country of Publication:
- United States
- Language:
- English
Similar Records
Chiral Effective-Field Theory in the $\Delta$(1232) Region: I. Pion Electroproduction on the Nucleon
Chiral effective-field theory in the {delta}(1232) region: Pion electroproduction on the nucleon
Related Subjects
PIONS
ELECTROPRODUCTION
PHOTOPRODUCTION
PHOTON-NUCLEON INTERACTIONS
PARTICLE MODELS
N BARYONS
QUANTUM CHROMODYNAMICS
PERTURBATION THEORY
K MATRIX
FINAL-STATE INTERACTIONS
CROSS SECTIONS
FORM FACTORS
662330
662390
PHOTON AND CHARGED-LEPTON INTERACTIONS WITH HADRONS
ELECTROMAGNETIC PROCESSES AND PROPERTIES