Original scientific paper

Sum rules for hadron photoproduction on hadrons and photon

E. Bartos ; Institute of Physics, Slovak Academy of Sciences, Bratislava, Slovak Republic
S. Dubnicka ; Institute of Physics, Slovak Academy of Sciences, Bratislava, Slovak Republic
A. Z. Dubnicková ; Department of Theoretical Physics, Comenius University, Bratislava, Slovak Republic
E. A. Kuraev ; Laboratory of Theoretical Physics, JINR, Dubna, Russia

Abstract

Sum rules are derived relating mean-squared charge radii in the case of pseudoscalar meson, Dirac mean-squared radii and anomalous magnetic moments in the case of (1/2)+ baryon, and finally sum of ratios of the fourth power of quark charges to the squared quark masses in the case of photon, with convergent integrals over the hadron photoproduction total cross-sections on pseudoscalar mesons, octet baryons and over γγ → 2 jets cross-section, respectively. As a byproduct, chains of inequalities for corresponding total photoproduction cross-sections on meson and baryons in finite energy region, to be valid on an average, are also derived.

Keywords

sum rules; pseudoscalar meson nonet; (1/2)+ baryon octet; photon; total photoproduction cross-section

Hrčak ID:

304772

URI

https://hrcak.srce.hr/304772

Publication date:

2.3.2008.

Article data in other languages: croatian

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