• DOI:10.1140/epjc/s10052-017-5459-4
• Corpus ID: 119333168

A study of top-quark mass measurement using the lepton energy distribution at the Large Hadron Collider

@article{An2017ASO,
  title={A study of top-quark mass measurement using the lepton energy distribution at the Large Hadron Collider},
  author={Seo Hyun An and Sayaka Kawabata and Tae Jeong Kim},
  journal={The European Physical Journal C},
  year={2017},
  volume={77},
  pages={1-7}
}

• S. An, S. Kawabata, T. Kim
• Published 14 April 2017
• Physics
• The European Physical Journal C

We present a feasibility study of top-quark mass measurement using the lepton energy distribution in the top-quark decay $$t \rightarrow bW \rightarrow b\ell \nu $$t→bW→bℓν at the LHC. The method used in this study requires only the lepton energy distribution at parton level. The analysis is performed in the lepton + jets final state by using fast simulation data corresponding to an integrated luminosity of approximately 20 fb$$^{-1}$$-1 at $$\sqrt{s}$$s = 14 TeV. Events with exactly one lepton, at least four jets and two b jets are selected. The lepton energy distribution at parton level is obtained by applying the bin-by-bin unfolding technique. The study shows that the pole mass of the top quark can be measured with an uncertainty of the order of 1 GeV.