论文标题
RESBOS2和CDF W质量测量
ResBos2 and the CDF W Mass Measurement
论文作者
论文摘要
最近的CDF $ W $质量测量为80,433 $ \ $ 9 MEV是最精确的直接测量。但是，该结果偏离标准模型的质量为80,359.1 $ \ pm $ 5.2 MEV $7σ$。 CDF实验使用了仅在NNLL+NLO上准确的RESBOS代码的较旧版本，而RESBOS2代码能够以N $ {}^3 $ LL+NNLO精度进行预测。我们确定CDF使用的数据驱动技术捕获大多数高阶校正，并且使用高阶校正将导致CDF报告的值最多减少10 MEV。
The recent CDF $W$ mass measurement of 80,433 $\pm$ 9 MeV is the most precise direct measurement. However, this result deviates from the Standard Model predicted mass of 80,359.1 $\pm$ 5.2 MeV by $7σ$. The CDF experiment used an older version of the ResBos code that was only accurate at NNLL+NLO, while the ResBos2 code is able to make predictions at N${}^3$LL+NNLO accuracy. We determine that the data-driven techniques used by CDF capture most of the higher order corrections, and using higher order corrections would result in a decrease in the value reported by CDF by at most 10 MeV.
