Leônidas Augusto Fernandes Do Prado

• Abstract

  The Large Hadron Collider (LHC) is entering now a new era, bringing rare and highly energetic events to experimental reach. Unlike the previous period, when we had a clear idea of what to search for, now we have a considerable number of attractive theories that must be tested in this new Higgs sector, which requires a greater collaboration between experimental and theoretical physicists. …

  Exploring the Higgs sector beyond the standard model with the top Yukawa coupling: a phenomenological and experimental search, BP.DR

• Abstract

  Numerous models that extend the Standard Model (SM) of particle physics have new heavy particles with sizeable couplings with the Higgs boson. Their effect can be described by operators of dimension higher than 4, which involve the Higgs and other SM fields. So we expect that the Higgs production rates and branching ratios will be especially sensitive to new physics. In this project we wi…

  Effective theories and lepton flavor violation in Higgs decays, BP.MS

• Abstract

  There is a consensus both in theoretical and experimental basis, coming from observations of the SN1987A, that a supernova explosion is preceded by a huge flux of neutrinos from the three flavors and also of their antiparticles. Large neutrino telescopes are able to disentangle the neutrino burst signal from the background fluctuations, and their current dimensions enable a data sample to…

  Determining the distance of stellar collapses through the beta-inverse channel of the LVD neutrino telescope, BP.IC

(Only some records are available in English at this moment)

• Abstract

  Minimal Composite Higgs Models (MCHM), with fermions in the fundamental representation of SO(5) and in the 14 of SO(5), are taken as the starting hypothesis to study the possible impact of compositeness in the ttH and HH production processes at LHC, with particular interest in searching for the enhancement of the ttHH production cross-section wrt the SM expectation. The search for this en…

  Exploring minimal composite Higgs hypothesis in the Higgs sector (e.g. TTH and HH production processes) with the new LHC data at CMS experiment, BE.EP.DR