2015/09/30 by Radovan Dermíšek, Radovan Dermisek, Enrico Lunghi +1 · 44 citations
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Electron #Electroweak interaction #Higgs boson #Lepton #Neutrino Physics Research #Nuclear physics #Parameter space #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Standard Model (mathematical formulation) #hep-ex #hep-ph
paper · pdf · doi:10.1007/jhep02(2016)119
published in Journal of High Energy Physics 2016(2) (Springer Nature) · 28 pages, 13 figures, 2 tables
openalex publication_date 2016/02/01 · arxiv created 2016/02/27 · arxiv updated 2016/03/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study a two Higgs doublet model extended by vectorlike leptons mixing with one family of standard model leptons. Generated flavor violating couplings between heavy and light leptons can dramatically alter the decay patterns of heavier Higgs bosons. We focus on pp → H → ν 4 ν μ → W μν μ , where ν 4 is a new neutral lepton, and study possible effects of this process on the measurements of pp → W W and H → W W since it leads to the same final states. We discuss predictions for contributions to pp → W W and H →WW and their correlations from the region of the parameter space that satisfies all available constraints including precision electroweak observables and from pair production of vectorlike leptons. Large contributions, close to current limits, favor small tan β region of the parameter space. We find that, as a result of adopted cuts in experimental analyses, the contribution to pp → W W can be an order of magnitude larger than the contribution to H → W W . Thus, future precise measurements of pp → W W will further constrain the parameters of the model. In addition, we also consider possible contributions to pp → W W from the heavy Higgs decays into a new charged lepton e 4 (H → e 4 μ → W μν μ ), exotic SM Higgs decays, and pair production of vectorlike leptons.