Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/24369
Title: Measurement of the top quark mass using events with a single reconstructed top quark in pp collisions at √s = 13 TeV
Authors: Tumasyan, A
Adam, W
Andrejkovic, JW
Bergauer, T
Chatterjee, S
Dragicevic, M
Escalante Del Valle, A
Frühwirth, R
Jeitler, M
Krammer, N
Lechner, L
Vanlaer, P
Vannerom, D
Wezenbeek, L
Cornelis, T
Dobur, D
Knolle, J
Lambrecht, L
Mestdach, G
Niedziela, M
Roskas, C
Samalan, A
Skovpen, K
Tytgat, M
Verbeke, W
Vermassen, B
Vit, M
Bethani, A
Bruno, G
Bury, F
Caputo, C
David, P
Delaere, C
Donertas, IS
Giammanco, A
Jaffel, K
Jain, S
Lemaitre, V
Mondal, K
Prisciandaro, J
Taliercio, A
Teklishyn, M
Tran, TT
Vischia, P
Wertz, S
Alves, GA
Coldham, K
Cole, JE
Khan, A
Kyberd, P
Reid, ID
Teodorescu, L
Zahid, S
Liko, D
Mikulec, I
Paulitsch, P
Pitters, FM
Schieck, J
Schöfbeck, R
Spanring, M
Templ, S
Waltenberger, W
Wulz, CE
Chekhovsky, V
Litomin, A
Makarenko, V
Darwish, MR
De Wolf, EA
Janssen, X
Kello, T
Lelek, A
Rejeb Sfar, H
Van Mechelen, P
Van Putte, S
Van Remortel, N
Blekman, F
Bols, ES
D’Hondt, J
De Clercq, J
Delcourt, M
El Faham, H
Lowette, S
Moortgat, S
Morton, A
Müller, D
Sahasransu, AR
Tavernier, S
Van Doninck, W
Van Mulders, P
Beghin, D
Bilin, B
Clerbaux, B
De Lentdecker, G
Favart, L
Grebenyuk, A
Kalsi, AK
Lee, K
Mahdavikhorrami, M
Makarenko, I
Moureaux, L
Pétré, L
Popov, A
Postiau, N
Starling, E
Thomas, L
Vanden Bemden, M
Vander Velde, C
Keywords: hadron-hadron scattering (experiments);Top physics
Issue Date: 22-Dec-2021
Publisher: Springer Nature on behalf of SISSA
Citation: CMS collaboration., Tumasyan, A. et al. (2021) 'Measurement of the top quark mass using events with a single reconstructed top quark in pp collisions at √s = 13 TeV', Journal of High Energy Physics, 2021, (12), 161, pp. 1-57. doi: 10.1007/JHEP12(2021)161.
Abstract: Copyright CERN, for the benefit of the CMS Collaboration. A measurement of the top quark mass is performed using a data sample enriched with single top quark events produced in the t channel. The study is based on proton- proton collision data, corresponding to an integrated luminosity of 35.9 fb−1, recorded at s = 13 TeV by the CMS experiment at the LHC in 2016. Candidate events are selected by requiring an isolated high-momentum lepton (muon or electron) and exactly two jets, of which one is identified as originating from a bottom quark. Multivariate discriminants are designed to separate the signal from the background. Optimized thresholds are placed on the discriminant outputs to obtain an event sample with high signal purity. The top quark mass is found to be 172.13−0.77+0.76 GeV, where the uncertainty includes both the statistical and systematic components, reaching sub-GeV precision for the first time in this event topology. The masses of the top quark and antiquark are also determined separately using the lepton charge in the final state, from which the mass ratio and difference are determined to be 0.9952−0.0104+0.0079 and 0.83−1.35+1.79 GeV, respectively. The results are consistent with CPT invariance. [Figure not available: see fulltext.].
Description: A preprint version of the article is available at arXiv (https://arxiv.org/abs/2108.10407).
URI: https://bura.brunel.ac.uk/handle/2438/24369
DOI: https://doi.org/10.1007/JHEP12(2021)161
ISSN: 1126-6708
Other Identifiers: 161
Appears in Collections:Dept of Electronic and Computer Engineering Research Papers

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