Measurement of the top quark mass using a profile likelihood approach with the lepton + jets final states in proton–proton collisions at √𝑠 = 13 TeV
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10052_2023_Article_12050.pdf
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Author(s)
Tumasyan, A.
Adam, W.
Andrejkovic, J. W.
Bergauer, T.
Chatterjee, S.
Damanakis, K.
Dragicevic, M.
Del Valle, A. E.
Hussain, P. S.
Jeitler, M.
Date Issued
October 25, 2023
Publisher
Springer Berlin Heidelberg
Citation
The European Physical Journal C. 2023 Oct 25;83(10):963
Version
Final published version
Abstract
Abstract
The mass of the top quark is measured in 36.3
$$\,\text {fb}^{-1}$$
fb
-
1
of LHC proton–proton collision data collected with the CMS detector at
$$\sqrt{s}=13\,\text {Te}\hspace{-.08em}\text {V} $$
s
=
13
Te
V
. The measurement uses a sample of top quark pair candidate events containing one isolated electron or muon and at least four jets in the final state. For each event, the mass is reconstructed from a kinematic fit of the decay products to a top quark pair hypothesis. A profile likelihood method is applied using up to four observables per event to extract the top quark mass. The top quark mass is measured to be
$$171.77\pm 0.37\,\text {Ge}\hspace{-.08em}\text {V} $$
171.77
±
0.37
Ge
V
. This approach significantly improves the precision over previous measurements.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-023-12050-4
