Probing proton strangeness with time-like virtual Compton scattering
Creators
Description
We document that p(γ,e+e-)p measurements will yield new, important information about the off-shell time-like nucleon form factors, especially in the phi meson region (q2=M2phi) governing the phiN couplings gV,TphiNN. Calculations for p(γ,e+e-)p, utilizing vector meson dominance, predict measurable phi enhancements at high vertical bar t vertical bar compared to the expected phi background production from π, η and Pomeron exchange. The phi form factor contribution generates a novel experimental signature for OZI violation and the proton strangeness content. The phiN couplings are determined independently from a combined analysis of the neutron electric form factor and recent high vertical bar t vertical bar phi photoproduction. The π, η and Pomeron transition form factors are also predicted and the observed π and η transition moments are reproduced
Additional details
Identifiers
- PII
- S0370269302028691;
Publishing Information
- Journal Title
- Physics Letters. Section B
- Journal Volume
- 549
- Journal Issue
- 1-2
- Journal Page Range
- p. 85-92
- ISSN
- 0370-2693
- CODEN
- PYLBAJ
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37072648
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- COMPTON EFFECT; COUPLINGS; ELECTRONS; FORM FACTORS; NEUTRONS; PAIR PRODUCTION; PHOTONUCLEAR REACTIONS; PHOTOPRODUCTION; POSITRONS; PROTON REACTIONS; PROTONS; STRANGENESS; VECTOR MESONS
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BARYON REACTIONS; BARYONS; BASIC INTERACTIONS; BOSONS; CHARGED-PARTICLE REACTIONS; DIMENSIONLESS NUMBERS; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; FERMIONS; HADRON REACTIONS; HADRONS; INTERACTIONS; LEPTONS; MATTER; MESONS; NUCLEAR REACTIONS; NUCLEON REACTIONS; NUCLEONS; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; SCATTERING
Optional Information
- Copyright
- Copyright (c) 2002 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.