Efficient method for evaluating energy-dependent sum rules
نویسندگان
چکیده
منابع مشابه
Finite energy chiral sum rules in QCD
The saturation of QCD chiral sum rules of the Weinberg-type is analyzed using ALEPH and OPAL experimental data on the difference between vector and axial-vector correlators (V-A). The sum rules exhibit poor saturation up to current energies below the tau-lepton mass. A remarkable improvement is achieved by introducing integral kernels that vanish at the upper limit of integration. The method is...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2014
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.89.064317