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arXiv · 1704.04330

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

Seo Hyun An·Sayaka Kawabata·Tae Jeong Kim
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Abstract

We present a feasibility study of top-quark mass measurement using the energy distribution of a lepton from a W boson in a top quark decay in pp collisions at the LHC. The proposed method requires only the lepton energy distribution at the 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 at 14 TeV. Events with exactly one lepton, at least 3 jets and at least 1 b jet are selected. The lepton energy distribution at the 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 within an uncertainty of 1 GeV.

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Seo Hyun An, Sayaka Kawabata, Tae Jeong Kim. 2017-11-19. A study of top-quark mass measurement using the lepton energy distribution at the Large Hadron Collider. https://doi.org/10.1140/epjc%2Fs10052-017-5459-4

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