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Charged-Higgs phenomenology in the aligned two-Higgs-doublet model

AuthorsJung, Martin; Pich, Antonio ; Tuzón, Paula
KeywordsHiggs Physics
Beyond Standard Model
CP violation
Issue DateNov-2010
CitationJournal of High Energy Physics 11: 003 (2010)
AbstractThe alignment in flavour space of the Yukawa matrices of a general two-Higgs-doublet model results in the absence of tree-level flavour-changing neutral currents. In addition to the usual fermion masses and mixings, the aligned Yukawa structure only contains three complex parameters zeta(f), which are potential new sources of CP violation [1]. For particular values of these three parameters all known specific implementations of the model based on discrete Z(2) symmetries are recovered. One of the most distinctive features of the two-Higgs-doublet model is the presence of a charged scalar H-+/-. In this work, we discuss its main phenomenological consequences in flavour-changing processes at low energies and derive the corresponding constraints on the parameters of the aligned two-Higgs-doublet model.
Publisher version (URL)http://dx.doi.org/10.1007/JHEP11(2010)003
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