DOE OSTI · 3007661
Observation of 𝑊𝑍𝛾 production and constraints on new physics scenarios in proton-proton collisions at $\sqrt{s}$ =13 TeV
Abstract
A measurement of the 𝑊𝑍𝛾 triboson production cross section is presented. The analysis is based on a data sample of proton-proton collisions at a center-of-mass energy of $\sqrt{s}$ =13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 138 fb −1 . The analysis focuses on the final state with three charged leptons, ℓ ± 𝜈ℓ + ℓ − , where ℓ = 𝑒 or 𝜇, accompanied by an additional photon. The observed (expected) significance of the 𝑊𝑍𝛾 signal is 5.4 (3.8) standard deviations. The cross section is measured in a fiducial region, where events with an ℓ originating from a tau lepton decay are excluded, to be 5.48 ± 1.11 fb, which is compatible with the prediction of 3.69 ± 0.24 fb at next-to-leading order in quantum chromodynamics. Exclusion limits are set on anomalous quartic gauge couplings and on the production cross sections of massive axionlike particles.
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Chekhovsky, V. [Yerevan Physics Institute], Hayrapetyan, A. [Yerevan Physics Institute], Makarenko, V. [Yerevan Physics Institute] (ORCID:0000000284068605), Tumasyan, A. [Yerevan Physics Institute] (ORCID:0009000006846742), Adam, W. [Institut für Hochenergiephysik] (ORCID:0000000190994341), Andrejkovic, J. W. [Institut für Hochenergiephysik], Benato, L. [Institut für Hochenergiephysik] (ORCID:0000000151357489), Bergauer, T. [Institut für Hochenergiephysik] (ORCID:0000000257860293), Chatterjee, S. [Institut für Hochenergiephysik] (ORCID:0000000301859872), Damanakis, K. [Institut für Hochenergiephysik] (ORCID:0000000153892872), Dragicevic, M. [Institut für Hochenergiephysik] (ORCID:0000000319676783), Hussain, P. S. [Institut für Hochenergiephysik] (ORCID:0000000248255278), Jeitler, M. [Institut für Hochenergiephysik] (ORCID:0000000251419560), Krammer, N. [Institut für Hochenergiephysik] (ORCID:0000000205480985), Li, A. [Institut für Hochenergiephysik] (ORCID:000000024547116X), Liko, D. [Institut für Hochenergiephysik] (ORCID:000000023380473X), Mikulec, I. [Institut für Hochenergiephysik] (ORCID:0000000303852746), Schieck, J. [Institut für Hochenergiephysik] (ORCID:0000000210588093), Schöfbeck, R. [Institut für Hochenergiephysik] (ORCID:0000000223328784), Schwarz, D. [Institut für Hochenergiephysik] (ORCID:0000000238217331), Sonawane, M. [Institut für Hochenergiephysik] (ORCID:0000000305107010), Waltenberger, W. [Institut für Hochenergiephysik] (ORCID:0000000262157228), Wulz, C.-E. [Institut für Hochenergiephysik] (ORCID:0000000192265812), Janssen, T. [Universiteit Antwerpen] (ORCID:0000000239984081), Kwon, H. [Universiteit Antwerpen] (ORCID:0009000251655018), Van Laer, T. [Universiteit Antwerpen], Van Mechelen, P. [Universiteit Antwerpen] (ORCID:0000000287319051), Breugelmans, N. [Vrije Universiteit Brussel], D’Hondt, J. [Vrije Universiteit Brussel] (ORCID:0000000295986241), Dansana, S. [Vrije Universiteit Brussel] (ORCID:0000000277527471), De Moor, A. [Vrije Universiteit Brussel] (ORCID:0000000159641935), Delcourt, M. [Vrije Universiteit Brussel] (ORCID:0000000182061787), Heyen, F. [Vrije Universiteit Brussel], Hong, Y. [Vrije Universiteit Brussel] (ORCID:0000000347522458), Lowette, S. [Vrije Universiteit Brussel] (ORCID:0000000339849987), Makarenko, I. [Vrije Universiteit Brussel] (ORCID:0000000285534508), Müller, D. [Vrije Universiteit Brussel] (ORCID:0000000217524527), Tavernier, S. [Vrije Universiteit Brussel] (ORCID:0000000267929522), Tytgat, M. [Vrije Universiteit Brussel] (ORCID:0000000239902074), Van Onsem, G. P. [Vrije Universiteit Brussel] (ORCID:0000000216642337), Van Putte, S. [Vrije Universiteit Brussel] (ORCID:0000000315593606), Vannerom, D. [Vrije Universiteit Brussel] (ORCID:0000000227475095), Bilin, B. [Université Libre de Bruxelles] (ORCID:0000000314397128), Clerbaux, B. [Université Libre de Bruxelles] (ORCID:0000000185478211), Das, A. K. [Université Libre de Bruxelles], De Bruyn, I. [Université Libre de Bruxelles] (ORCID:0000000317044360), De Lentdecker, G. [Université Libre de Bruxelles] (ORCID:0000000151247693), Evard, H. [Université Libre de Bruxelles] (ORCID:0009000550391462), Favart, L. [Université Libre de Bruxelles] (ORCID:0000000316457454), Gianneios, P. [Université Libre de Bruxelles] (ORCID:0009000372330738), Khalilzadeh, A. [Université Libre de Bruxelles], Khan, F. A. [Université Libre de Bruxelles] (ORCID:000900022039277X), Malara, A. [Université Libre de Bruxelles] (ORCID:0000000186459282), Shahzad, M. A. [Université Libre de Bruxelles], Thomas, L. [Université Libre de Bruxelles] (ORCID:0000000227563853), Vanden Bemden, M. [Université Libre de Bruxelles] (ORCID:0009000077257945), Vander Velde, C. [Université Libre de Bruxelles] (ORCID:0000000333927294), Vanlaer, P. [Université Libre de Bruxelles] (ORCID:0000000279314496), De Coen, M. [Ghent University] (ORCID:0000000258547442), Dobur, D. [Ghent University] (ORCID:0000000300124866), Gokbulut, G. [Ghent University] (ORCID:0000000201756454), Knolle, J. [Ghent University] (ORCID:0000000247815704), Lambrecht, L. [Ghent University] (ORCID:0000000191081560), Marckx, D. [Ghent University] (ORCID:0000000167522290), Skovpen, K. [Ghent University] (ORCID:0000000211600621), Van Den Bossche, N. [Ghent University] (ORCID:0000000329734991), van der Linden, J. [Ghent University] (ORCID:000000027174781X), Vandenbroeck, J. [Ghent University] (ORCID:0009000461413404), Wezenbeek, L. [Ghent University] (ORCID:000000016952891X), Bein, S. [Université Catholique de Louvain] (ORCID:0000000193877407), Benecke, A. [Université Catholique de Louvain] (ORCID:0000000302523609), Bethani, A. [Université Catholique de Louvain] (ORCID:0000000281507043), Bruno, G. [Université Catholique de Louvain] (ORCID:0000000188578197), Caputo, C. [Université Catholique de Louvain] (ORCID:0000000175224808), De Favereau De Jeneret, J. [Université Catholique de Louvain] (ORCID:0000000317758574), Delaere, C. [Université Catholique de Louvain] (ORCID:0000000187076021), Donertas, I. S. [Université Catholique de Louvain] (ORCID:000000017485412X), Giammanco, A. [Université Catholique de Louvain] (ORCID:0000000196408294), Guzel, A. O. [Université Catholique de Louvain] (ORCID:0000000294045933), Jain, Sa. [Université Catholique de Louvain] (ORCID:0000000150783689), Lemaitre, V. [Université Catholique de Louvain], Lidrych, J. [Université Catholique de Louvain] (ORCID:0000000314390196), Mastrapasqua, P. [Université Catholique de Louvain] (ORCID:0000000220432367), Tran, T. T. [Université Catholique de Louvain] (ORCID:000000033060350X), Turkcapar, S. [Université Catholique de Louvain] (ORCID:0000000326080494), Alves, G. A. [Centro Brasileiro de Pesquisas Fisicas] (ORCID:0000000283691446), Coelho, E. [Centro Brasileiro de Pesquisas Fisicas] (ORCID:0000000161149907), Correia Silva, G. [Centro Brasileiro de Pesquisas Fisicas] (ORCID:0000000162323591), Hensel, C. [Centro Brasileiro de Pesquisas Fisicas] (ORCID:0000000188747624), Menezes De Oliveira, T. [Centro Brasileiro de Pesquisas Fisicas] (ORCID:0009000947298354), Mora Herrera, C. [Centro Brasileiro de Pesquisas Fisicas] (ORCID:0000000339153170), Rebello Teles, P. [Centro Brasileiro de Pesquisas Fisicas] (ORCID:0000000190298506), Soeiro, M. [Centro Brasileiro de Pesquisas Fisicas], Tonelli Manganote, E. J. [Centro Brasileiro de Pesquisas Fisicas] (ORCID:0000000324598521), Vilela Pereira, A. [Centro Brasileiro de Pesquisas Fisicas] (ORCID:0000000331774626), Aldá Júnior, W. L. [Universidade do Estado do Rio de Janeiro] (ORCID:0000000158559817), Barroso Ferreira Filho, M. [Universidade do Estado do Rio de Janeiro] (ORCID:0000000339040571), Brandao Malbouisson, H. [Universidade do Estado do Rio de Janeiro] (ORCID:000000021326318X), Carvalho, W. [Universidade do Estado do Rio de Janeiro] (ORCID:0000000307386615), Chinellato, J. [Universidade do Estado do Rio de Janeiro]. 2025-07-15. Observation of 𝑊𝑍𝛾 production and constraints on new physics scenarios in proton-proton collisions at $\sqrt{s}$ =13 TeV. https://doi.org/10.1103/cm24-665b
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