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Asada, H.; Azuelos, G.; Barron, U.; Basan, A.; Batlamous, S.; Beau, T.; Bella, G.; Benoit, M.; Bindi, M.; Bossio Sola, J. D.; Brandt, O.; Buttinger, W.; Chen, C.; Chen, J.; Cueto, A.; Dabrowski, W.; De Salvo, A.; Demichev, M.; D’Eramo, L.; Desch, K.; Dette, K.; Di Girolamo, A.; Dubinin, F.; Dziedzic, B. S.; Eigen, G.; Fujimoto, M.; Gaspar, P.; Gillwald, N. K.; Gonnella, F.; Gouighri, M.; Gwenlan, C.; Habedank, M.; Haley, J.; Han, Y. F.; Hansen, M. C.; Hauser, R.; Hays, C. P.; Hohn, D.; Kostyukhin, V. V.; Kourkoumeli-Charalampidi, A.; Krishnamurthy, S.; Krivos, M.; Langenberg, R. J.; Lee, C. A.; Lefebvre, H. P.; Leonidopoulos, C.; Lester, C. G.; Long, J. D.; Lu, S.; Lyubushkin, V.; Macdonald, C. M.; Makovec, N.; Malecki, Pa; Metcalfe, J.; Moreno Martinez, C.; Munoz Sanchez, F. J.; Muse, J. M.; Öncel, Ö. O.; Ouraou, A.; Owen, R. E.; Pascuzzi, V. R.; Passaggio, S.; Pastore, F.; Peters, R. Y.; Piacquadio, G.; Plesanovs, V.; Polychronakos, V.; Powell, T. D.; Pudzha, D.; Ran, K.; Rustige, L.; Saha, P.; Santos, H.; Sickles, A. M.; Silverstein, S. B.; Smirnova, L. N.; Smykiewicz, A.; Sopkova, F.; Stanislaus, B.; Styles, N. A.; Su, S.; Sun, S.; Takubo, Y.; Tikhonov, Yu. A.; Treado, C. J.; Vasile, M. E.; Viehhauser, G. A.; Vincter, M. G.; Vivarelli, I.; Vozdecky, L.; Wang, A. M.; Ward, R. J.; Watson, A. T.; Wongel, A. F.; Worm, S. D.; Wyatt, T. R.; Yang, Y.; Young, C. S.; Zhang, L.; Zhu, C.
The journal of high energy physics, 11/2023, Letnik: 2023, Številka: 11Journal Article
A search is presented for single production of a vector-like B quark decaying into a Standard Model b-quark and a Standard Model Higgs boson, which decays into a $b\overline{b}$ pair. The search is carried out in 139 fb-1 of $\sqrt{s}$ = 13 TeV proton-proton collision data collected by the ATLAS detector at the LHC between 2015 and 2018. No significant deviation from the Standard Model background prediction is observed, and mass-dependent exclusion limits at the 95% confidence level are set on the resonance production cross-section in several theoretical scenarios determined by the couplings cW, cZ and cH between the B quark and the Standard Model W, Z and Higgs bosons, respectively. For a vector-like B occurring as an isospin singlet, the search excludes values of cW greater than 0.45 for a B resonance mass (mB) between 1.0 and 1.2 TeV. For 1.2 TeV < mB < 2.0 TeV, cW values larger than 0.50–0.65 are excluded. If the B occurs as part of a (B, Y) doublet, the smallest excluded cZ coupling values range between 0.3 and 0.5 across the investigated resonance mass range 1.0 TeV < mB < 2.0 TeV.
