Ms
khawla salime
(Polydisciplinary Faculty, Laboratory of Physics, Energy, Environment, and Applications, Cadi Ayyad University, Sidi Bouzid, B.P. 4162, Safi, Morocco)
We examined the integration of vector-like bottom (VLB) quarks into the Two-Higgs-Doublet Model (THDM), enabling new decay channels distinct from the Standard Model (SM) processes ($B \to Zb$, $B \to hb$, $B \to Wt$). These Beyond Standard Model (BSM) decays, including CP-even $B \to Hb$, CP-odd $B \to Ab$, and charged $B \to H^-t$ modes, remain unprobed at the LHC, where VLB searches currently target only SM channels. Our analysis assessed the impact of these BSM decays on the stringent mass constraints for VLB quarks in THDM type II (THDM-II) under the alignment limit. For a singlet $B$, the mass limit drops from approximately 1.43 TeV to 1.00 TeV, while for a doublet $(T, B)$, it decreases from about 1.55 TeV to 0.98 TeV, driven primarily by the $T \to H^-b$ decay, which can achieve a branching ratio of nearly 100%.
Dr
Mohamed Boukidi
(Polydisciplinary Faculty, Laboratory of Physics, Energy, Environment, and Applications, Cadi Ayyad University, Sidi Bouzid, B.P. 4162, Safi, Morocco)
Mr
Mohamed ECH-CHAOUY
(Polydisciplinary Faculty, Laboratory of Physics, Energy, Environment, and Applications, Cadi Ayyad University, Sidi Bouzid, B.P. 4162, Safi, Morocco)
Prof.
Rachid Benbrik
(Polydisciplinary Faculty, Laboratory of Physics, Energy, Environment, and Applications, Cadi Ayyad University, Sidi Bouzid, B.P. 4162, Safi, Morocco)
Prof.
Stefano Moretti
(Department of Physics & Astronomy, Uppsala University, Box 516, SE-751 20 Uppsala, Sweden.)
Ms
khawla salime
(Polydisciplinary Faculty, Laboratory of Physics, Energy, Environment, and Applications, Cadi Ayyad University, Sidi Bouzid, B.P. 4162, Safi, Morocco)
