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  • Andrejkovic, J. W.; Templ, S.; Lowette, S.; Postiau, N.; Ban, Y.; Christoforou, K.; Lohezic, V.; Ochando, C.; Purohit, A.; An, Y.; Yang, Y.; Albrecht, S.; Grohsjean, A.; Korcari, W.; Lange, J.; Stadie, H.; Koppenhöfer, R.; Kousouris, K.; Gianneios, P.; Fiore, L.; Abbiendi, G.; Cavallo, F. R.; Rossi, A. M.; Papanastassiou, A.; Ferro, F.; Robutti, E.; Tosi, S.; Meneguzzo, A. T.; Boccali, T.; Bruschini, D.; Mijuskovic, J.; Santanastasio, F.; Han, S.; Awan, M. I. M.; Pisano, M.; Wulff, J. W.; Alcaraz Maestre, J.; Willmott, C.; Gonzalez Caballero, I.; Rodríguez Bouza, V.; Auzinger, G.; Gigi, D.; Haranko, M.; Lecoq, P.; Rabady, D.; Erdmann, W.; Steggemann, J.; Huwiler, M.; Li, Y. y.; Yazgan, E.; Tali, B.; Epshteyn, V.; Hacisahinoglu, B.; Simsek, C.; Bloch, P.; Khan, A.; Abdullin, S.; Kanuganti, A. R.; Sawant, S.; Rumerio, P.; Luo, J.; Yan, X.; Breedon, R.; Bachtis, M.; Lam, T.; Quinnan, M.; Sharma, V.; Mei, H.; Sheplock, J.; Stuart, D.; Zipper, N.; Cerati, G. B.; McBride, P.; Merkel, P.; Mitselmakher, G.; Mills, C.; Roy, T.; Wang, X.; Corcodilos, L.; Baringer, P.; Le Mahieu, C.; Busza, W.; Rothman, S.; Bloom, K.; Golf, F.; Lu, M.; Miao, Y.; Hildreth, M.; Dezoort, G.; Kwan, S.; Pathak, A.; Gilmore, J.; Mueller, R.; Ledovskoy, A.; Perez Lara, C. E.; Black, K.; Danilov, M.; Palichik, V.; Polikarpov, S.; Smirnov, V.

    The journal of high energy physics, 10/2023, Volume: 2023, Issue: 10
    Journal Article

    A bstract A search for high-mass dimuon resonance production in association with one or more b quark jets is presented. The study uses proton-proton collision data collected with the CMS detector at the LHC corresponding to an integrated luminosity of 138 fb − 1 at a center-of-mass energy of 13 TeV. Model-independent limits are derived on the number of signal events with exactly one or more than one b quark jet. Results are also interpreted in a lepton-flavor-universal model with Z′ boson couplings to a bb quark pair ( g b ), an sb quark pair ( g b δ bs ), and any same-flavor charged lepton ( g ℓ ) or neutrino pair ( g ν ), with |g ν | = |g ℓ | . For a Z′ boson with a mass m Z ′ = 350 GeV (2 TeV) and |δ bs | < 0.25, the majority of the parameter space with 0.0057 < |g ℓ | < 0.35 (0.25 < |g ℓ | < 0.43) and 0.0079 < | g b | < 0.46 (0.34 < | g b | < 0.57) is excluded at 95% confidence level. Finally, constraints are set on a Z′ model with parameters consistent with low-energy b → s ℓℓ measurements. In this scenario, most of the allowed parameter space is excluded for a Z′ boson with 350 < m Z ′ < 500 GeV, while the constraints are less stringent for higher m Z ′ hypotheses. This is the first dedicated search at the LHC for a high-mass dimuon resonance produced in association with multiple b quark jets, and the constraints obtained on models with this signature are the most stringent to date.