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Title: | Running of the top quark mass from proton-proton collisions at √s = 13 TeV |
Authors: | Sirunyan, AM Tumasyan, A Adam, W Ambrogi, F Bergauer, T Brandstetter, J Dragicevic, M Erö, J Escalante Del Valle, A Flechl, M Frühwirth, R Roskas, C Tytgat, M Verbeke, W Vermassen, B Vit, M Zahid, S Bondu, O Bruno, G Caputo, C David, P Delaere, C Delcourt, M Teodorescu, L Giammanco, A Lemaitre, V Prisciandaro, J Saggio, A Vidal Marono, M Reid, ID Vischia, P Zobec, J Alves, FL Alves, GA Mackay, CK Correia Silva, G Hensel, C Moraes, A Kyberd, P Rebello Teles, P Belchior Batista Das Chagas, E Khan, A Carvalho, W Hobson, PR Cole, JE Jeitler, M Krammer, N Krätschmer, I Liko, D Madlener, T Mikulec, I Rad, N Schieck, J Schöfbeck, R Spanring, M Spitzbart, D Waltenberger, W Wulz, CE Zarucki, M Drugakov, V Mossolov, V Suarez Gonzalez, J Darwish, MR De Wolf, EA Di Croce, D Janssen, X Lelek, A Pieters, M Rejeb Sfar, H Van Haevermaet, H Van Mechelen, P Van Putte, S Van Remortel, N Blekman, F Bols, ES Chhibra, SS D'Hondt, J De Clercq, J Lontkovskyi, D Lowette, S Marchesini, I Moortgat, S Python, Q Skovpen, K Tavernier, S Van Doninck, W Van Mulders, P Beghin, D Bilin, B Brun, H Clerbaux, B De Lentdecker, G Delannoy, H Dorney, B Favart, L Grebenyuk, A Kalsi, AK Popov, A Postiau, N Starling, E Thomas, L Vander Velde, C Vanlaer, P Vannerom, D Cornelis, T Dobur, D Khvastunov, I Niedziela, M |
Keywords: | CMS;physics;top quark mass;QCD;renormalization |
Issue Date: | 10-Feb-2020 |
Publisher: | Elsevier |
Citation: | .The CMS Collaboration (2020) 'Running of the top quark mass from proton-proton collisions at √s = 13 TeV', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 803, 135263, pp. 1 - 24. doi: 10.1016/j.physletb.2020.135263. |
Abstract: | The running of the top quark mass is experimentally investigated for the first time. The mass of the top quark in the modified minimal subtraction (M‾‾S‾) renormalization scheme is extracted from a comparison of the differential top quark-antiquark (tt¯) cross section as a function of the invariant mass of the tt¯ system to next-to-leading-order theoretical predictions. The differential cross section is determined at the parton level by means of a maximum-likelihood fit to distributions of final-state observables. The analysis is performed using tt¯ candidate events in the e± μ∓ channel in proton-proton collision data at a centre-of-mass energy of 13 TeV recorded by the CMS detector at the CERN LHC in 2016, corresponding to an integrated luminosity of 35.9fb−1. The extracted running is found to be compatible with the scale dependence predicted by the corresponding renormalization group equation. In this analysis, the running is probed up to a scale of the order of 1 TeV. |
Description: | A version of the article is available at arXiv:1909.09193v2 [hep-ex], https://arxiv.org/abs/1909.09193. Comments: Replaced with the published version. Added the journal reference. All the figures and tables can be found at https://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-19-007 (CMS Public Pages). Report number: CMS-TOP-19-007, CERN-EP-2019-189. |
URI: | https://bura.brunel.ac.uk/handle/2438/20745 |
DOI: | https://doi.org/10.1016/j.physletb.2020.135263 |
ISSN: | 0370-2693 |
Other Identifiers: | ORCiD: A. Tumasyan https://orcid.org/0009-0000-0684-6742 ORCiD: Joanne Cole https://orcid.org/0000-0001-5638-7599 ORCiD: Peter Hobson https://orcid.org/0000-0002-5645-5253 ORCiD: Akram Khan https://orcid.org/0000-0002-4597-4402 ORCiD: Paul Kyberd https://orcid.org/0000-0002-7353-7090 ORCiD: Catherine K. Mackay https://orcid.org/0000-0003-4252-6740 ORCiD: Ivan D. Reid https://orcid.org/0000-0002-9235-779X ORCiD: Liliana Teodorescu https://orcid.org/0000-0002-6974-6201 CMS-TOP-19-007 CERN-EP-2019-189 arXiv:1909.09193v2 [hep-ex] |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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FullText.pdf | Copyright © 2020 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/). | 877.22 kB | Adobe PDF | View/Open |
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