论文标题
对双爆机通道中希格斯玻色子质量的测量
A measurement of the Higgs boson mass in the diphoton decay channel
论文作者
论文摘要
提出了对二孔衰变通道中希格斯玻色子质量的测量。该分析基于2016年LHC运行期内收集的质子 - 普罗顿碰撞数据的35.9 fb $^{ - 1} $，CMS检测器的质量中心能量为13 TEV。精制的检测器校准和新的分析技术已被用来提高该测量的精度。希格斯玻色子质量为$ m_ \ mathrm {h} = $ 125.78 $ \ pm $ 0.26 GEV。使用相同的数据集，这与已经在h $ \ to $ zz $ \ to $ zz $ \ to $ zz $ \ to $ zz $ \ to $ m_trm {h} $中的测量结合在一起，使用相同的数据集，提供$ M_ \ Mathrm {h} = $ 125.46 = $ 125.46 $ \ pm pm $ 0.16 gev。当使用CMS探测器收集的数据进一步结合$ M_ \ Mathrm {H} $的较早测量结果时，该结果为Higgs玻色子质量$ M_ \ Mathrm {H} = $ 125.38 $ \ pm pm $ 0.14 GEV提供了一个值。目前，这是希格斯玻色子质量的最精确的测量。
A measurement of the mass of the Higgs boson in the diphoton decay channel is presented. This analysis is based on 35.9 fb$^{-1}$ of proton-proton collision data collected during the 2016 LHC running period, with the CMS detector at a center-of-mass energy of 13 TeV. A refined detector calibration and new analysis techniques have been used to improve the precision of this measurement. The Higgs boson mass is measured to be $m_\mathrm{H} =$ 125.78 $\pm$ 0.26 GeV. This is combined with a measurement of $m_\mathrm{H}$ already performed in the H $\to$ ZZ $\to$ 4$\ell$ decay channel using the same data set, giving $m_\mathrm{H} =$ 125.46 $\pm$ 0.16 GeV. This result, when further combined with an earlier measurement of $m_\mathrm{H}$ using data collected in 2011 and 2012 with the CMS detector, gives a value for the Higgs boson mass of $m_\mathrm{H} =$ 125.38 $\pm$ 0.14 GeV. This is currently the most precise measurement of the mass of the Higgs boson.
