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arXiv 0909.3419hep-thhep-lat
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手征极限下的QCD旋光体

The QCD rotator in the chiral limit

P. Hasenfratz

摘要:

本文用手征微扰理论计算了QCD在δ区的低阶谱,直到NNL阶。该光谱具有简单的形式,根据π衰变常数F和低能量常数λ 1和λ 2的组合。由于测量低洼稳定质量是最简单的数值任务之一,因此结果应有助于将这些参数固定到良好的精度。

英文摘要:

The low lying spectrum of QCD in the delta-regime is calculated here in chiral perturbation theory up to NNL order. The spectrum has a simple form in terms of the pion decay constant F and a combination of the low energy constants Lambda1 and Lambda2. Since measuring low lying stable masses is among the easiest numerical tasks, the results should help fixing these parameters to good precision.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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