The $tar{t} + 1-{ ext{jet}} + X$ differential cross-section in proton-proton collissions at 7 TeV centre of mass energy is investigated with respect to its sensitivity to the top quark mass. The analysis includes higher order QCD corrections at NLO. The impact of the renormalization scale (e???R), the factorization (e???F) scale and of the choice of different proton's PDF (parton distribution function) has been evaluated. In this study it is concluded that differential jet rates offer a promising option for alternative mass measurements of the top quark, with theoretical uncertainties below 1 GeV.
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机译:研究了在7 TeV质心能量中心的质子-质子碰撞中$ tar {t} + 1- {ext {jet}} + X $的微分横截面,其对顶部夸克质量的敏感性。分析包括NLO的高阶QCD校正。已经评估了重归一化量表(e R R),因式分解(eεF)量表以及选择不同质子PDF(parton分布函数)的影响。在这项研究中得出的结论是,差动喷射速率为顶夸克的替代质量测量提供了一个有前途的选择,其理论不确定性低于1 GeV。
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