Search for resonances decaying to three W bosons in the hadronic final state in proton-proton collisions at s = 13     TeV

• Published in: Physical review. D 2022-07, Vol.106 (1), Article 012002
• Main Authors: Tumasyan, A., Adam, W., Andrejkovic, J. W., Bergauer, T., Chatterjee, S., Damanakis, K., Dragicevic, M., Del Valle, A. Escalante, Frühwirth, R., Jeitler, M., Krammer, N., Lechner, L., Liko, D., Mikulec, I., Paulitsch, P., Pitters, F. M., Schieck, J., Schöfbeck, R., Schwarz, D., Templ, S., Waltenberger, W., Wulz, C.-E., Chekhovsky, V., Litomin, A., Makarenko, V., Darwish, M. R., De Wolf, E. A., Janssen, T., Kello, T., Lelek, A., Sfar, H. Rejeb, Van Mechelen, P., Van Putte, S., Van Remortel, N., Bols, E. S., D’Hondt, J., Delcourt, M., Faham, H. El, Lowette, S., Moortgat, S., Morton, A., Müller, D., Sahasransu, A. R., Tavernier, S., Van Doninck, W., Vannerom, D., Beghin, D., Bilin, B., Clerbaux, B., De Lentdecker, G., Favart, L., Kalsi, A. K., Lee, K., Mahdavikhorrami, M., Makarenko, I., Moureaux, L., Paredes, S., Pétré, L., Popov, A., Postiau, N., Starling, E., Thomas, L., Vanden Bemden, M., Vander Velde, C., Vanlaer, P., Cornelis, T., Dobur, D., Knolle, J., Lambrecht, L., Mestdach, G., Niedziela, M., Rendón, C., Roskas, C., Samalan, A., Skovpen, K., Tytgat, M., Vermassen, B., Wezenbeek, L., Benecke, A., Bethani, A., Bruno, G., Bury, F., Caputo, C., David, P., Delaere, C., Donertas, I. S., Giammanco, A., Jaffel, K., Jain, Sa, Lemaitre, V., Mondal, K., Prisciandaro, J., Taliercio, A., Teklishyn, M., Tran, T. T., Vischia, P., Wertz, S., Alves, G. A., Hensel, C., Moraes, A.
• Format: Article
• Language: English
• Subjects: Hadron colliders; Hypothetical particles; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; W & Z bosons
• ISSN: 2470-0010; 2470-0029
• DOI: 10.1103/PhysRevD.106.012002

A search for Kaluza-Klein excited vector boson resonances, $W_\mathrm{KK}$, decaying in cascade to three W bosons via a scalar radion $R, W_\mathrm{KK}\to WR \to WWW$, with two or three massive jets is presented. The search is performed with proton-proton collision data recorded at $\sqrt{s} =$ 13 TeV, collected by the CMS experiment at the CERN LHC, during 2016-2018, corresponding to an integrated luminosity of 138 fb$^{-1}$. Two final states are simultaneously probed, one where the two W bosons produced by the R decay are reconstructed as separate, large-radius, massive jets, and one where they are merged in a single large-radius jet. The observed data are in agreement with the standard model expectations. Limits are set on the product of the $W_\mathrm{KK}$ resonance cross section and branching fraction to three W bosons in an extended warped extra-dimensional model and are the first of their kind at the LHC.