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arXiv 1104.3137hep-phhep-ex
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低能QCD的奇本征宇称区共振饱和

Resonance saturation in the odd-intrinsic parity sector of low-energy QCD

Karol Kampf, Jiri Novotny

摘要:

利用大N_C近似,我们构造了奇内禀宇称扇区中最一般的手征共振拉格朗日量,它能产生最大为O(p^6)的低能手征常数.将共振场积分后,这些O(p^6)常数可以用共振耦合和质量表示。eta'的作用进行了讨论,其贡献是明确的因式分解。使用共振基础,我们还计算了两个QCD格林函数的电流:<VVP>和<VAS>,并发现,施加高能量的限制,共振耦合的额外关系。我们已经研究了几个唯象的影响,从这里让我们提到我们的预测的π 0极的μ子g-2的因素:$a_μ^{π^0} = 65.8(1.2)\times 10^{-11}$的基础上,让我们这些recruitators。

英文摘要:

Using the large N_C approximation we have constructed the most general chiral resonance Lagrangian in the odd-intrinsic parity sector that can generate low energy chiral constants up to O(p^6). Integrating out the resonance fields these O(p^6) constants are expressed in terms of resonance couplings and masses. The role of eta' is discussed and its contribution is explicitly factorized. Using the resonance basis we have also calculated two QCD Green functions of currents: <VVP> and <VAS> and found, imposing high energy constraints, additional relations for resonance couplings. We have studied several phenomenological implications based on these correlators from which let us mention here our prediction for the pi0-pole contribution to the muon g-2 factor: $a_μ^{π^0} = 65.8(1.2)\times 10^{-11}$.

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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