Measurement of the top-quark mass using a leptonic invariant mass in pp collisions at √s = 13 TeV with the ATLAS detector

ATLAS Publications; Benjamin Wynne; M. Faucci Giannelli; A. Hasib; M.P. Heath; X. Hoad; S. Palazzo; A. Søgaard; A. Strubig; E.P. Takeva; A.J. Taylor; A. Washbrook

doi:10.1007/JHEP06(2023)019

Measurement of the top-quark mass using a leptonic invariant mass in pp collisions at √s = 13 TeV with the ATLAS detector

ATLAS Publications, Benjamin Wynne, M. Faucci Giannelli, A. Hasib, M.P. Heath, X. Hoad, S. Palazzo, A. Søgaard, A. Strubig, E.P. Takeva, A.J. Taylor, A. Washbrook

School of Physics and Astronomy

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Abstract

A measurement of the top-quark mass (mtt) in the tt‾tt → lepton + jets channel is presented, with an experimental technique which exploits semileptonic decays of b-hadrons produced in the top-quark decay chain. The distribution of the invariant mass mℓμℓμ of the lepton, ℓ (with ℓ = e, μ), from the W-boson decay and the muon, μ, originating from the b-hadron decay is reconstructed, and a binned-template profile likelihood fit is performed to extract mtt. The measurement is based on data corresponding to an integrated luminosity of 36.1 fb−1−1 of ss = 13 TeV pp collisions provided by the Large Hadron Collider and recorded by the ATLAS detector. The measured value of the top-quark mass is mtt = 174.41 ± 0.39 (stat.) ± 0.66 (syst.) ± 0.25 (recoil) GeV, where the third uncertainty arises from changing the Pythia8 parton shower gluon-recoil scheme, used in top-quark decays, to a recently developed setup.

Original language	English
Article number	19
Pages (from-to)	1-55
Number of pages	55
Journal	Journal of High Energy Physics
Volume	2023
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2023)019
Publication status	Published - 5 Jun 2023

Keywords / Materials (for Non-textual outputs)

Hadron-Hadron Scattering
Top Physics

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10.1007/JHEP06(2023)019Licence: Creative Commons: Attribution (CC-BY)

http://arxiv.org/abs/2209.00583

3 Finished
3 Active

Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C.
1/04/23 → 30/09/25
Project: Research
Upgrade of the ATLAS detector at the LHC (2023-26)
Clark, P.
1/04/23 → 31/03/26
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C.
1/10/22 → 30/09/25
Project: Research

Cite this

ATLAS Publications, Wynne, B., Faucci Giannelli, M., Hasib, A., Heath, M. P., Hoad, X., Palazzo, S., Søgaard, A., Strubig, A., Takeva, E. P., Taylor, A. J., & Washbrook, A. (2023). Measurement of the top-quark mass using a leptonic invariant mass in pp collisions at √s = 13 TeV with the ATLAS detector. Journal of High Energy Physics, 2023(6), 1-55. Article 19. https://doi.org/10.1007/JHEP06(2023)019

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title = "Measurement of the top-quark mass using a leptonic invariant mass in pp collisions at √s = 13 TeV with the ATLAS detector",

abstract = "A measurement of the top-quark mass (mtt) in the tt‾tt → lepton + jets channel is presented, with an experimental technique which exploits semileptonic decays of b-hadrons produced in the top-quark decay chain. The distribution of the invariant mass mℓμℓμ of the lepton, ℓ (with ℓ = e, μ), from the W-boson decay and the muon, μ, originating from the b-hadron decay is reconstructed, and a binned-template profile likelihood fit is performed to extract mtt. The measurement is based on data corresponding to an integrated luminosity of 36.1 fb−1−1 of ss = 13 TeV pp collisions provided by the Large Hadron Collider and recorded by the ATLAS detector. The measured value of the top-quark mass is mtt = 174.41 ± 0.39 (stat.) ± 0.66 (syst.) ± 0.25 (recoil) GeV, where the third uncertainty arises from changing the Pythia8 parton shower gluon-recoil scheme, used in top-quark decays, to a recently developed setup.",

keywords = "Hadron-Hadron Scattering, Top Physics",

author = "{ATLAS Publications} and Clark, {Philip James} and Sinead Farrington and Yanyan Gao and Christos Leonidopoulos and Martin, {Victoria Jane} and Liza Mijovic and Benjamin Wynne and {Faucci Giannelli}, M. and A. Hasib and M.P. Heath and X. Hoad and S. Palazzo and A. S{\o}gaard and A. Strubig and E.P. Takeva and A.J. Taylor and A. Washbrook",

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ATLAS Publications, Wynne, B, Faucci Giannelli, M, Hasib, A, Heath, MP, Hoad, X, Palazzo, S, Søgaard, A, Strubig, A, Takeva, EP, Taylor, AJ & Washbrook, A 2023, 'Measurement of the top-quark mass using a leptonic invariant mass in pp collisions at √s = 13 TeV with the ATLAS detector', Journal of High Energy Physics, vol. 2023, no. 6, 19, pp. 1-55. https://doi.org/10.1007/JHEP06(2023)019

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T1 - Measurement of the top-quark mass using a leptonic invariant mass in pp collisions at √s = 13 TeV with the ATLAS detector

AU - ATLAS Publications

AU - Clark, Philip James

AU - Farrington, Sinead

AU - Gao, Yanyan

AU - Leonidopoulos, Christos

AU - Martin, Victoria Jane

AU - Mijovic, Liza

AU - Wynne, Benjamin

AU - Faucci Giannelli, M.

AU - Hasib, A.

AU - Heath, M.P.

AU - Hoad, X.

AU - Palazzo, S.

AU - Søgaard, A.

AU - Strubig, A.

AU - Takeva, E.P.

AU - Taylor, A.J.

AU - Washbrook, A.

PY - 2023/6/5

Y1 - 2023/6/5

N2 - A measurement of the top-quark mass (mtt) in the tt‾tt → lepton + jets channel is presented, with an experimental technique which exploits semileptonic decays of b-hadrons produced in the top-quark decay chain. The distribution of the invariant mass mℓμℓμ of the lepton, ℓ (with ℓ = e, μ), from the W-boson decay and the muon, μ, originating from the b-hadron decay is reconstructed, and a binned-template profile likelihood fit is performed to extract mtt. The measurement is based on data corresponding to an integrated luminosity of 36.1 fb−1−1 of ss = 13 TeV pp collisions provided by the Large Hadron Collider and recorded by the ATLAS detector. The measured value of the top-quark mass is mtt = 174.41 ± 0.39 (stat.) ± 0.66 (syst.) ± 0.25 (recoil) GeV, where the third uncertainty arises from changing the Pythia8 parton shower gluon-recoil scheme, used in top-quark decays, to a recently developed setup.

AB - A measurement of the top-quark mass (mtt) in the tt‾tt → lepton + jets channel is presented, with an experimental technique which exploits semileptonic decays of b-hadrons produced in the top-quark decay chain. The distribution of the invariant mass mℓμℓμ of the lepton, ℓ (with ℓ = e, μ), from the W-boson decay and the muon, μ, originating from the b-hadron decay is reconstructed, and a binned-template profile likelihood fit is performed to extract mtt. The measurement is based on data corresponding to an integrated luminosity of 36.1 fb−1−1 of ss = 13 TeV pp collisions provided by the Large Hadron Collider and recorded by the ATLAS detector. The measured value of the top-quark mass is mtt = 174.41 ± 0.39 (stat.) ± 0.66 (syst.) ± 0.25 (recoil) GeV, where the third uncertainty arises from changing the Pythia8 parton shower gluon-recoil scheme, used in top-quark decays, to a recently developed setup.

KW - Hadron-Hadron Scattering

KW - Top Physics

U2 - 10.1007/JHEP06(2023)019

DO - 10.1007/JHEP06(2023)019

M3 - Article

SN - 1029-8479

VL - 2023

SP - 1

EP - 55

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 6

M1 - 19

ER -

Measurement of the top-quark mass using a leptonic invariant mass in pp collisions at √s = 13 TeV with the ATLAS detector

Abstract

Keywords / Materials (for Non-textual outputs)

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Projects

Experimental Particle Physics at the University of Edinburgh

Upgrade of the ATLAS detector at the LHC (2023-26)

Experimental Particle Physics at the University of Edinburgh

Cite this