Nelson-Barr models with vector-like quark doublets suppress hadronic CP violation to three loops via an accidental symmetry in the renormalizable theory, yielding phenomenologically viable solutions distinct from singlet-based models.
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In extended scalar sectors near the alignment limit, higher-dimensional interactions can make two-, three-, or four-Higgs final states the dominant discovery mode at the LHC via gluon fusion.
Hidden BSM decays of vector-like bottom quarks in 2HDM-II relax LHC mass limits from ~1.5 TeV to 1.34 TeV for singlets and 0.98 TeV for doublets.
XGBoost multivariate analysis extends the 5-sigma discovery reach for singly produced vector-like bottom quarks decaying via heavy neutral Higgs bosons to 1.6 TeV at the HL-LHC with 3 ab^{-1}.
citing papers explorer
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Nelson-Barr Models with Vector-Like Quark Doublets
Nelson-Barr models with vector-like quark doublets suppress hadronic CP violation to three loops via an accidental symmetry in the renormalizable theory, yielding phenomenologically viable solutions distinct from singlet-based models.
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Alignment and Enhanced Multi-Higgs Production
In extended scalar sectors near the alignment limit, higher-dimensional interactions can make two-, three-, or four-Higgs final states the dominant discovery mode at the LHC via gluon fusion.
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Impact of hidden heavy Higgs channels of VLB-Quarks below 1 TeV in 2HDM
Hidden BSM decays of vector-like bottom quarks in 2HDM-II relax LHC mass limits from ~1.5 TeV to 1.34 TeV for singlets and 0.98 TeV for doublets.
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Probing Heavy Neutral Higgs Bosons via Single Vector-Like Bottom Quark Production at the HL-LHC
XGBoost multivariate analysis extends the 5-sigma discovery reach for singly produced vector-like bottom quarks decaying via heavy neutral Higgs bosons to 1.6 TeV at the HL-LHC with 3 ab^{-1}.