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Title: | Search for Higgs Boson and Observation of Z Boson through Their Decay into a Charm Quark-Antiquark Pair in Boosted Topologies in Proton-Proton Collisions at √<i>s</i> = 13 TeV |
Other Titles: | Search for Higgs boson and observation of Z boson through their decay into a charm quark-antiquark pair in boosted topologies in proton-proton collisions at $\sqrt{s}$ = 13 TeV |
Authors: | Tumasyan, A Adam, W Andrejkovic, JW Bergauer, T Chatterjee, S Damanakis, K Dragicevic, M Del Valle, AE Hussain, PS Jeitler, M Krammer, N Rendón, C Samalan, A Skovpen, K Tytgat, M Van Den Bossche, N Vermassen, B Wezenbeek, L Benecke, A Bruno, G Bury, F Caputo, C David, P Delaere, C Donertas, IS Giammanco, A Jaffel, K Jain, S Lemaitre, V Mondal, K Taliercio, A Tran, TT Vischia, P Wertz, S Alves, GA Coelho, E Hensel, C Moraes, A Teles, PR Júnior, WLA Pereira, MAG Filho, MBF Malbouisson, HB Carvalho, W Chinellato, J Reid, ID Da Costa, EM Da Silveira, GG De Jesus Damiao, D Kyberd, P Dos Santos Sousa, V De Souza, SF Khan, A Martins, J Cole, JE Coldham, K Lechner, L Liko, D Mikulec, I Paulitsch, P Schieck, J Schöfbeck, R Schwarz, D Sonawane, M Templ, S Waltenberger, W Wulz, CE Darwish, MR Janssen, T Kello, T Sfar, HR Van Mechelen, P Bols, ES D’Hondt, J De Moor, A Delcourt, M Faham, HE Lowette, S Morton, A Müller, D Sahasransu, AR Tavernier, S Van Doninck, W Van Putte, S Vannerom, D Clerbaux, B De Lentdecker, G Favart, L Hohov, D Jaramillo, J Lee, K Mahdavikhorrami, M Makarenko, I Malara, A Paredes, S Pétré, L Postiau, N Thomas, L Vanden Bemden, M Vander Velde, C Vanlaer, P Dobur, D Knolle, J Lambrecht, L Mestdach, G |
Keywords: | charm quark;Higgs bosons;W and Z bosons;hadron colliders;particles and fields |
Issue Date: | 26-Jul-2023 |
Publisher: | American Physical Society |
Citation: | Tumasyan, A. et al. on behalf of the CMS Collaboration (2023) 'Search for Higgs Boson and Observation of Z Boson through Their Decay into a Charm Quark-Antiquark Pair in Boosted Topologies in Proton-Proton Collisions at √<i>s</i> = 13 TeV', Physical Review Letters, 131 (4), 041801, pp. 1 - 21. doi: 10.1103/PhysRevLett.131.041801. |
Abstract: | A search for the standard model (SM) Higgs boson (H) produced with transverse momentum greater than 450 GeV and decaying to a charm quark-antiquark (cc¯) pair is presented. The search is performed using proton-proton collision data collected at √s = 13 TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138 fb^{−1}. Boosted H → cc¯ decay products are reconstructed as a single large-radius jet and identified using a deep neural network charm tagging technique. The method is validated by measuring the Z → cc¯ decay process, which is observed in association with jets at high pT for the first time with a signal strength of 1.00 +0.17−0.14 (syst) ± 0.08 (theo) ± 0.06 (stat), defined as the ratio of the observed process rate to the standard model expectation. The observed (expected) upper limit on σ(H) B(H → cc¯) is set at 47 (39) times the SM prediction at 95% confidence level. |
Description: | A preprint version of the article is available at arXiv:2211.14181v2 [hep-ex], https://arxiv.org/abs/2211.14181v2 . Comments: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at https://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-21-012 (CMS Public Pages). Report number: CMS-HIG-21-012, CERN-EP-2022-233. |
URI: | https://bura.brunel.ac.uk/handle/2438/28909 |
DOI: | https://doi.org/10.1103/PhysRevLett.131.041801 |
ISSN: | 0031-9007 |
Other Identifiers: | ORCiD: A. Tumasyan https://orcid.org/0009-0000-0684-6742 ORCiD: Joanne E. Cole https://orcid.org/0000-0001-5638-7599 ORCiD: Akram Khan https://orcid.org/0000-0002-4597-4402 ORCiD: Paul Kyberd https://orcid.org/0000-0002-7353-7090 ORCiD: Ivan D. Reid https://orcid.org/0000-0002-9235-779X CMS-HIG-21-012 CERN-EP-2022-233 arXiv:2211.14181v2 [hep-ex] 041801 |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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