Published November 28, 2002 | Version v1
Journal article

Probing proton strangeness with time-like virtual Compton scattering

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

Optional Information

Copyright
Copyright (c) 2002 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.