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Paper   IPM / Particles And Accelerator / 15161
School of Particles and Accelerator
  Title:   Charged Higgs production from polarized top-quark decay in the 2HDM considering the general-mass variable-flavor-number scheme
1.  S Abbaspour
2.  Seyed Mohammad Moosavi Nejad
  Status:   Published
  Journal: Nucl. Phys. B
  Vol.:  930
  Year:  2018
  Pages:   270-286
  Supported by:  IPM
Charged Higgs bosons are predicted by some non-minimal Higgs scenarios, such as models containing Higgs triplets and two-Higgs-doublet models, so that the experimental observation of these bosons would indicate physics beyond the Standard Model. In the present work, we introduce a channel to indirect search for the charged Higgses through the hadronic decay of polarized top quarks where a top quark decays into a charged Higgs H+ and a bottom-flavored meson B via the hadronization process of the produced bottom quark, t(↑)→ H++b(→ B+jet). To obtain the energy spectrum of produced B-mesons we present, for the first time, an analytical expression for the Os) corrections to the differential decay width of the process tH+b in presence of a massive b-quark in the General-Mass Variable-Flavor-Number (GM-VFN) scheme. We find that the most reliable predictions for the B-hadron energy spectrum are made in the GM-VFN scheme, specifically, when the Type-II 2HDM scenario is concerned.

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