[PDF] Exploring SM-like Higgs Boson Production in Association with Single-Top at the LHC Within a 2HDM-论文阅读讨论-ReadPaper

摘要

We investigate the possibility of detectable 2-Higgs Doublet Model (2HDM)type-II cross-sections at the High-Luminosity phase of the Large HadronCollider (HL-LHC) for the production of the Standard Model (SM)-like Higgsboson ($h$) in association with a single top (anti)quark over the parameterspace region corresponding to the so-called `wrong-sign solution' of the bottom(anti)quark Yukawa coupling. We isolate the latter by using the toolboxMagellan, which performs Markov Chain Monte Carlo (MCMC) scans in the presenceof all current theoretical and experimental constraints, which relevance isaccounted for accurately by using built-in Bayesian statistical methods. It isfound that the allowed points in the 2HDM type-II parameter space of theaforementioned kind would not only provide inclusive rates considerably abovethose of the equivalent SM process but also distributions in severalkinematical observables that are very different from the SM, both of which canhelp disentangle the SM from the 2HDM hypothesis. This difference is aconsequence of the bottom-gluon fusion sub-process, which in the 2HDM becomesdominant over all others, with the latter remaining very close to the SMyields. We prove that this phenomenology would be observable at the HL-LHC forthe illustrative example of $h$ to bottom-antibottom quark decays.

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