Search for single production of vector-like quarks decaying to a top quark and a W boson in proton-proton collisions at $\sqrt {s} = 13$ TeV

CMS Collaboration; Canelli, Maria Florencia; Kilminster, Benjamin; Aarrestad, Thea K; Brzhechko, Danyyl; Caminada, Lea; de Cosa, Annapaoloa; Del Burgo, Riccardo; Donato, Silvio; Galloni, Camilla; Hreus, Tomas; Leontsinis, Stefanos; Mikuni, Vinicius Massami; Neutelings, Izaak; Rauco, Giorgia; Robmann, Peter; Salerno, Daniel; Schweiger, Korbinian; Seitz, Claudia; Takahashi, Yuta

doi:10.1140/epjc/s10052-019-6556-3

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CMS Collaboration, Canelli, M. F., Kilminster, B., Aarrestad, T. K., Brzhechko, D., Caminada, L., de Cosa, A., Del Burgo, R., Donato, S., Galloni, C., Hreus, T., Leontsinis, S., Mikuni, V. M., Neutelings, I., Rauco, G., Robmann, P., Salerno, D., Schweiger, K., Seitz, C., … et al. (2019). Search for single production of vector-like quarks decaying to a top quark and a W boson in proton-proton collisions at $\sqrt {s} = 13$ TeV. European Physical Journal C : Particles and Fields, C79, 90. https://doi.org/10.1140/epjc/s10052-019-6556-3

Abstract

A search is presented for the single production of vector-like quarks in proton–proton collisions at $\sqrt {s} = 13$ TeV. The data, corresponding to an integrated luminosity of 35.9 $fb^{−1}$, were recorded with the CMS experiment at the LHC. The analysis focuses on the vector-like quark decay into a top quark and a W boson, with one muon or electron in the final state. The mass of the vector-like quark candidate is reconstructed from hadronic jets, the lepton, and the missing transverse momentum. Methods for the identification of b