Measurement of the top quark mass in the all-jets final state at √s=13TeV and combination with the lepton+jets channel

Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Adžić, Petar; Ćirković, Predrag; Devetak, Damir; Đorđević, Miloš; Milenović, Predrag; Milošević, Jovan

doi:10.1140/epjc/s10052-019-6788-2

CMS Collaboration (ukupan broj autora: 2285)

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Abstract

A top quark mass measurement is performed using 35.9fb-1 of LHC proton–proton collision data collected with the CMS detector at s=13TeV. The measurement uses the t t ¯ all-jets final state. A kinematic fit is performed to reconstruct the decay of the t t ¯ system and suppress the multijet background. Using the ideogram method, the top quark mass (m t ) is determined, simultaneously constraining an additional jet energy scale factor (JSF). The resulting value of mt=172.34±0.20(stat+JSF)±0.70(syst)GeV is in good agreement with previous measurements. In addition, a combined measurement that uses the t t ¯ lepton+jets and all-jets final states is presented, using the same mass extraction method, and provides an m t measurement of 172.26±0.07(stat+JSF)±0.61(syst)GeV. This is the first combined m t extraction from the lepton+jets and all-jets channels through a single likelihood function. © 2019, CERN for the benefit of the CMS collaboration.

Source:
European Physical Journal C, 2019, 79, 4

DOI: 10.1140/epjc/s10052-019-6788-2

ISSN: 1434-6044; 1434-6052

PubMed: 31031568

WoS: 000463723300003

Scopus: 2-s2.0-85064056375

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https://vinar.vin.bg.ac.rs/handle/123456789/8142

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TY  - JOUR
AU  - Sirunyan, A. M.
AU  - Tumasyan, A.
AU  - Adam, W.
AU  - Ambrogi, F.
AU  - Adžić, Petar
AU  - Ćirković, Predrag
AU  - Devetak, Damir
AU  - Đorđević, Miloš
AU  - Milenović, Predrag
AU  - Milošević, Jovan
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8142
AB  - A top quark mass measurement is performed using 35.9fb-1 of LHC proton–proton collision data collected with the CMS detector at s=13TeV. The measurement uses the t t ¯ all-jets final state. A kinematic fit is performed to reconstruct the decay of the t t ¯ system and suppress the multijet background. Using the ideogram method, the top quark mass (m t ) is determined, simultaneously constraining an additional jet energy scale factor (JSF). The resulting value of mt=172.34±0.20(stat+JSF)±0.70(syst)GeV is in good agreement with previous measurements. In addition, a combined measurement that uses the t t ¯ lepton+jets and all-jets final states is presented, using the same mass extraction method, and provides an m t measurement of 172.26±0.07(stat+JSF)±0.61(syst)GeV. This is the first combined m t extraction from the lepton+jets and all-jets channels through a single likelihood function. © 2019, CERN for the benefit of the CMS collaboration.
T2  - European Physical Journal C
T1  - Measurement of the top quark mass in the all-jets final state at √s=13TeV and combination with the lepton+jets channel
VL  - 79
IS  - 4
DO  - 10.1140/epjc/s10052-019-6788-2
ER  -

@article{
author = "Sirunyan, A. M. and Tumasyan, A. and Adam, W. and Ambrogi, F. and Adžić, Petar and Ćirković, Predrag and Devetak, Damir and Đorđević, Miloš and Milenović, Predrag and Milošević, Jovan",
year = "2019",
abstract = "A top quark mass measurement is performed using 35.9fb-1 of LHC proton–proton collision data collected with the CMS detector at s=13TeV. The measurement uses the t t ¯ all-jets final state. A kinematic fit is performed to reconstruct the decay of the t t ¯ system and suppress the multijet background. Using the ideogram method, the top quark mass (m t ) is determined, simultaneously constraining an additional jet energy scale factor (JSF). The resulting value of mt=172.34±0.20(stat+JSF)±0.70(syst)GeV is in good agreement with previous measurements. In addition, a combined measurement that uses the t t ¯ lepton+jets and all-jets final states is presented, using the same mass extraction method, and provides an m t measurement of 172.26±0.07(stat+JSF)±0.61(syst)GeV. This is the first combined m t extraction from the lepton+jets and all-jets channels through a single likelihood function. © 2019, CERN for the benefit of the CMS collaboration.",
journal = "European Physical Journal C",
title = "Measurement of the top quark mass in the all-jets final state at √s=13TeV and combination with the lepton+jets channel",
volume = "79",
number = "4",
doi = "10.1140/epjc/s10052-019-6788-2"
}

Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Adžić, P., Ćirković, P., Devetak, D., Đorđević, M., Milenović, P.,& Milošević, J.. (2019). Measurement of the top quark mass in the all-jets final state at √s=13TeV and combination with the lepton+jets channel. in European Physical Journal C, 79(4).
https://doi.org/10.1140/epjc/s10052-019-6788-2

Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Adžić P, Ćirković P, Devetak D, Đorđević M, Milenović P, Milošević J. Measurement of the top quark mass in the all-jets final state at √s=13TeV and combination with the lepton+jets channel. in European Physical Journal C. 2019;79(4).
doi:10.1140/epjc/s10052-019-6788-2 .

Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Adžić, Petar, Ćirković, Predrag, Devetak, Damir, Đorđević, Miloš, Milenović, Predrag, Milošević, Jovan, "Measurement of the top quark mass in the all-jets final state at √s=13TeV and combination with the lepton+jets channel" in European Physical Journal C, 79, no. 4 (2019),
https://doi.org/10.1140/epjc/s10052-019-6788-2 . .