论文标题

QCD总规则的等分离器梅森群众

Isovector Meson Masses from QCD Sum Rules

论文作者

Nasrallah, Nasrallah F., Schilcher, Karl

论文摘要

我们使用有限的能量QCD总规则的新方法来介绍ISOVECTOR介子(包括已建立复发的媒介,标量和伪库)的质量。该方法基于选择合适的集成核的想法,该内核可以最大程度地减少复杂能量(平方)平面切割的积分。我们在宽范围内获得了非常稳定的结果,其中r是集成轮廓的半径。总和规则预测与预期准确性中的实验值一致,表明QCD描述了单个共振。

We present a calculation of the masses of the isovector mesons ( vector, scalar and pseudoscalar including the established recurrences) using a new method of finite energy QCD sum rules. The method is based on the idea of choosing a suitable integration kernel which minimizes the occurring integral over the cut in the complex energy (squared) plane. We obtain remarkably stable results in a wide range R, where R is the radius of the integration contour. The sum rule predictions agree with the experimental values within the expected accuracy showing that QCD describes single resonances.

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