Abstract
We study the associated production of a charged Higgs boson with a bottom quark and a light quark at the LHC via pp → H ± b j in the Two Higgs Doublet Models (2HDMs). Using the effective W approximation, we show that there is exact cancellation among various Feynman diagrams in high energy limit. This may imply that the production of charged Higgs can be significantly enhanced in the presence of large mass differences among the neutral Higgs bosons via W ±-Higgs fusion in the pp → H ± b j process. Particularly, we emphasize the potential enhancement due to a light pseudoscalar boson A, which is still allowed by the current data by which we explicitly calculate the allowed regions in (M A , tan β) plane, and show that the production cross section can be as large as 0.1 pb for large tan β. We also show that the transverse momentum distribution of the b quark can potentially distinguish the W ±-A fusion diagram from the top diagram. Finally, we point out further enhancement when we go beyond the 2HDMs.
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Arhrib, A., Cheung, K., Lee, J.S. et al. Enhanced charged Higgs production through W -Higgs fusion in W -b scattering. J. High Energ. Phys. 2016, 93 (2016). https://doi.org/10.1007/JHEP05(2016)093
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DOI: https://doi.org/10.1007/JHEP05(2016)093