Publication: Measurement of the top-quark mass in tt¯ + 1-jet events collected with the ATLAS detector in pp collisions at √s = 8 TeV
Дата
2019
Авторы
Aad, G.
Abbott, B.
Abbott, D. C.
Abdinov, O.
Belotskiy, K.
Belyaev, N. L.
Bulekov, O.
Kantserov, V. A.
Kurova, A.
Ponomarenko, D.
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Аннотация
© 2019, The Author(s).A determination of the top-quark mass is presented using 20.2 fb−1 of 8 TeV proton-proton collision data produced by the Large Hadron Collider and collected by the ATLAS experiment. The normalised differential cross section of top-quark pair production in association with an energetic jet is measured in the lepton+jets final state and unfolded to parton and particle levels. The unfolded distribution at parton level can be described using next-to-leading-order QCD predictions in terms of either the top-quark pole mass or the running mass as defined in the (modified) minimal subtraction scheme. A comparison between the experimental distribution and the theoretical prediction allows the top-quark mass to be extracted in the two schemes. The value obtained for the pole-mass scheme is: mtpole=171.1±0.4(stat)±0.9(syst)−0.3+0.7(theo)GeV The extracted value in the running-mass scheme is: mt(mt)=162.9±0.5(stat)±1.0(syst)−1.2+2.1(theo)GeV. The results for the top-quark mass using the two schemes are consistent, when translated from one scheme to the other. [Figure not available: see fulltext.]
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Measurement of the top-quark mass in tt¯ + 1-jet events collected with the ATLAS detector in pp collisions at √s = 8 TeV / Aad, G. [et al.] // Journal of High Energy Physics. - 2019. - 2019. - № 11. - 10.1007/JHEP11(2019)150
URI
https://www.doi.org/10.1007/JHEP11(2019)150
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https://www.scopus.com/record/display.uri?eid=2-s2.0-85076438382&origin=resultslist
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000514894800001
https://openrepository.mephi.ru/handle/123456789/19005