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Two novel methods in QCD sum rules

Gubler, Philipp·Oka, Makoto
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Abstract

Two novel methods in extracting the spectral information of hadrons in the QCD sum rule technique. The first one is to combine two sum rules so that the pole dominance is achieved and the resonance information is effectively obtained. This method is applied to the pentaquark {Theta}{sup +} and its quantum numbers are predicted. The second method is to use the Bayesian inference theory to obtain the most probable form of the spectral function from the sum rule. We have checked the method to work in the case of the rho meson sum rule.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSBOSONSELEMENTARY PARTICLESEQUATIONSFERMIONSFIELD THEORIESFUNCTIONSHADRONSINTEGRAL EQUATIONSMATHEMATICAL OPERATORSMESONSPARITYPARTICLE PROPERTIESQUANTUM CHROMODYNAMICSQUANTUM FIELD THEORYQUANTUM NUMBERSQUARKSRESONANCERHO-770 MESONSSPECTRAL FUNCTIONSSUM RULESVECTOR MESONS

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Gubler, Philipp, Oka, Makoto. 2010-12-28. Two novel methods in QCD sum rules. https://doi.org/10.1063/1.3541987

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