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

Дата
2019
Авторы
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Ambrogi, F.
Chistov, R.
Danilov, M.
Philippov, D.
Tarkovskii, E.
Matveev, V.
Dremin, I.
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Организационные подразделения
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Организационная единица
Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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Аннотация
© 2019, CERN for the benefit of the CMS collaboration. 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.
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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. [et al.] // European Physical Journal C. - 2019. - 79. - № 4. - 10.1140/epjc/s10052-019-6788-2
URI
https://www.doi.org/10.1140/epjc/s10052-019-6788-2
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85064056375&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000463723300003
 https://openrepository.mephi.ru/handle/123456789/16826
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