English

Flavorful Two Higgs Doublet Models with a Twist

High Energy Physics - Phenomenology 2018-11-08 v2

Abstract

We explore Two Higgs Doublet Models with non-standard flavor structures. In analogy to the four, well studied, models with natural flavor conservation (type 1, type 2, lepton-specific, flipped), we identify four models that preserve an approximate U(2)5U(2)^5 flavor symmetry acting on the first two generations. In all four models, the couplings of the 125 GeV Higgs are modified in characteristic flavor non-universal ways. The heavy neutral and charged Higgs bosons show an interesting non-standard phenomenology. We discuss their production and decay modes and identify the most sensitive search channels at the LHC. We study the effects on low energy flavor violating processes finding relevant constraints from BdB_d and BsB_s meson oscillations and from the rare decay Bsμ+μB_s \to \mu^+ \mu^-. We also find that lepton flavor violating BB meson decays like BsτμB_s \to \tau \mu and BK()τμB \to K^{(*)} \tau \mu might have branching ratios at an observable level.

Keywords

Cite

@article{arxiv.1805.08659,
  title  = {Flavorful Two Higgs Doublet Models with a Twist},
  author = {Wolfgang Altmannshofer and Brian Maddock},
  journal= {arXiv preprint arXiv:1805.08659},
  year   = {2018}
}

Comments

42 pages, 8 figures, 4 tables