标准模型中$\varepsilon'/\varepsilon$的完整更新
A complete update of $\varepsilon'/\varepsilon$ in the Standard Model
摘要:
最近发布的改进的晶格数据再次恢复了对直接CP破坏比$\varepsilon'/\varepsilon$的精确理论计算的兴趣。我们提出了一个完整的更新的标准模型预测[1,2],包括一个新的重新分析的同位旋破缺的修正,这是至关重要的,在理论上确定这个可观察到的。标准模型预测值$\mathrm{Re} (ε'/ε) = (14\pm 5)\cdot 10^{-4}$与实验测量值吻合良好。
英文摘要:
The recent release of improved lattice data has revived again the interest on precise theoretical calculations of the direct CP-violation ratio $\varepsilon'/\varepsilon$. We present a complete update of the Standard Model prediction [1,2], including a new re-analysis of isospin-breaking corrections which are of vital importance in the theoretical determination of this observable. The Standard Model prediction, $\mathrm{Re} (ε'/ε) = (14\pm 5)\cdot 10^{-4}$, turns out to be in good agreement with the experimental measurement.
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。