A study of top-quark mass measurement using the lepton energy distribution at the Large Hadron Collideropen access
- Authors
- An, Seo Hyun; Kawabata, Sayaka; Kim, Tae Jeong
- Issue Date
- Dec-2017
- Publisher
- SPRINGER
- Citation
- EUROPEAN PHYSICAL JOURNAL C, v.77, no.12, pp.1 - 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- EUROPEAN PHYSICAL JOURNAL C
- Volume
- 77
- Number
- 12
- Start Page
- 1
- End Page
- 7
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/151100
- DOI
- 10.1140/epjc/s10052-017-5459-4
- ISSN
- 1434-6044
- Abstract
- We present a feasibility study of top-quark mass measurement using the lepton energy distribution in the top-quark decay t -> bW -> bl nu 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) at root 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.
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