Published June 2000
| Version v1
Journal article
Scaling law for the electromagnetic form factors of the proton
Creators
- 1. Department of Physics, National Taiwan University, Taipei 10617, Taiwan (China)
- 2. Department of Physics and Mathematical Physics and Special Research Centre for the Subatomic Structure of Matter, University of Adelaide, Australia 5005 (Australia)
Description
The violation of the scaling law for the electric and magnetic form factors of the proton is examined within the cloudy bag model. We find that the suppression of the ratio of the electric and magnetic form factors is natural in the relativistic bag model. The pion cloud plays a moderate role in moving the ratio towards unity at low momentum transfer. The scaling violation increases as the momentum transfer increases because of the rapid drop of the pionic contribution. Our result is in reasonable agreement with the recent data from TJNAF. (author). Letter-to-the-editor
Additional details
Publishing Information
- Journal Title
- Journal of Physics. G, Nuclear and Particle Physics (Online)
- Journal Volume
- 26
- Journal Issue
- 6
- Journal Page Range
- p. L75-L80
- ISSN
- 1361-6471
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43044026
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- BAG MODEL; ELECTROMAGNETIC FORM FACTORS; MOMENTUM TRANSFER; PIONS; PROTONS; SCALING LAWS
- Descriptors DEC
- BARYONS; BOSONS; COMPOSITE MODELS; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; EXTENDED PARTICLE MODEL; FERMIONS; FORM FACTORS; HADRONS; MATHEMATICAL MODELS; MESONS; NUCLEONS; PARTICLE MODELS; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; QUARK MODEL
Optional Information
- Notes
- Refs.; This record replaces 31030082