Measurement of the top quark mass in the all-jets final state at √s=13TeV and combination with the lepton+jets channel
Authors
Sirunyan, A. M.Tumasyan, A.
Adam, W.
Ambrogi, F.
Adžić, Petar
Ćirković, Predrag
Devetak, Damir
Đorđević, Miloš
Milenović, Predrag
Milošević, Jovan
Contributors
CMS CollaborationCMS Collaboration (ukupan broj autora: 2285)
Article (Published version)
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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. Particles and Fields, 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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VinčaTY - 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. Particles and Fields 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. Particles and Fields", 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. Particles and Fields, 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. Particles and Fields. 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. Particles and Fields, 79, no. 4 (2019), https://doi.org/10.1140/epjc/s10052-019-6788-2 . .