@misc{10481/91144, year = {2023}, month = {11}, url = {https://hdl.handle.net/10481/91144}, abstract = {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 bb pair. The search is carried out in 139 fb−1 of √s = 13TeV 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 1.2TeV. For 1.2TeV < mB < 2.0TeV, 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 1.0TeV < mB < 2.0TeV.}, organization = {CERN}, organization = {MICINN}, organization = {Horizon 2020}, organization = {ICSC-NextGenerationEU}, organization = {Marie Skłodowska-Curie Actions}, organization = {La Caixa Banking Foundation}, organization = {CERCA Programme Generalitat de Catalunya}, organization = {PROMETEO and GenT Programmes Generalitat Valenciana}, publisher = {Springer Nature}, keywords = {Vector-Like Quarks}, keywords = {Beyond Standard Model}, keywords = {Exotics}, title = {Search for single vector-like B quark production and decay via B → bH (bb) in pp collisions at √s = 13 TeV with the ATLAS detector}, doi = {10.1007/JHEP11(2023)168}, author = {Aad, Georges and Aguilar Saavedra, Juan Antonio and Rodríguez Chala, Mikael and Atlas Collaboration, /}, }