https://doi.org/10.1140/epjc/s10052-017-5459-4
Regular Article - Experimental Physics
A study of top-quark mass measurement using the lepton energy distribution at the Large Hadron Collider
1
Department of Physics, Hanyang University, Seoul, 04764, South Korea
2
Institute of Convergence Fundamental Studies, Seoul National Universiy of Science and Technology, Seoul, 01811, South Korea
* e-mail: taekim@hanyang.ac.kr
Received:
14
April
2017
Accepted:
12
December
2017
Published online:
19
December
2017
We present a feasibility study of top-quark mass measurement using the lepton energy distribution in the top-quark decay 
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
at 
= 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.
© The Author(s), 2017
