A5033157582- Particle physics theoretical and experimental studies
- Neutrino Physics Research
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- High-Energy Particle Collisions Research
- Cosmology and Gravitation Theories
- Advanced DC-DC Converters
- Microgrid Control and Optimization
- Multilevel Inverters and Converters
- Astrophysics and Cosmic Phenomena
- Particle Detector Development and Performance
- Advanced Battery Technologies Research
- Computational Physics and Python Applications
- Atomic and Subatomic Physics Research
- Noncommutative and Quantum Gravity Theories
- Power Quality and Harmonics
- Electromagnetic Compatibility and Noise Suppression
- Silicon Carbide Semiconductor Technologies
- Low-power high-performance VLSI design
- Wind Turbine Control Systems
- Particle accelerators and beam dynamics
- Photovoltaic System Optimization Techniques
- Distributed and Parallel Computing Systems
- Radiation Therapy and Dosimetry
University of Lisbon
2014-2024
Instituto Politécnico de Lisboa
2002-2022
Instituto Superior Técnico
2009-2021
Universidade Federal do Ceará
2005-2019
European Organization for Nuclear Research
1996-2016
Universitat de València
2008-2016
National University of Distance Education
2008
Technical University of Munich
2005-2008
Federal Center for Technological Education of Minas Gerais
2006-2008
University of Geneva
1980-2004
This chapter of the report "Flavor in era LHC" Workshop discusses theoretical, phenomenological and experimental issues related to flavor phenomena charged lepton sector conserving CP-violating processes. We review current limits main theoretical models for structure fundamental particles. analyze consequences available data, setting constraints on explicit beyond standard model, presenting benchmarks discovery potential forthcoming measurements both at LHC low energy, exploring options...
We review the theory and phenomenology of isosinglet vector-like quarks (VLQs). In recent years, interest in VLQs has been increasing, due to their contributions new physics effects that can be tested experiments at LHC High-Luminosity LHC. The similarities models with seesaw framework leptonic sector are pointed out. existence leads flavour-changing neutral currents tree level deviations from unitarity CKM matrix, introducing rich phenomenological implications. These naturally suppressed by...
Several topics on $CP$ violation in the lepton sector are reviewed. A few theoretical aspects concerning neutrino masses, leptonic mixing, and will be covered, with special emphasis seesaw models. discussion is provided observable effects which manifest presence of violation, particularly, oscillations neutrinoless double beta decay processes, their possible implications collider experiments such as LHC. The role that may have played generation baryon asymmetry Universe through mechanism...
It is shown that the requirements of spontaneous $\mathrm{CP}$ breaking and natural flavor conservation lead to a class theories where nonconservation due solely Higgs exchange, for an arbitrary number fermion generations.
We analyse various flavour changing processes like $t\to hu,hc$, $h\to \tau e,\tau\mu$ as well hadronic decays bs,bd$, in the framework of a class two Higgs doublet models where there are neutral scalar currents at tree level. These have remarkable feature having these flavour-violating couplings entirely determined by CKM and PMNS matrices $\tan\beta$. The structure results from symmetry Lagrangian therefore it is natural stable under renormalization group. show that some rates above can...
The relation between leptogenesis and CP violation at low energies is analyzed in detail the framework of minimal seesaw mechanism. Working, without loss generality, a weak basis where both charged lepton right-handed Majorana mass matrices are diagonal real, we consider convenient generic parametrization Dirac neutrino Yukawa coupling matrix identify necessary condition which has to be satisfied order establish direct link energies. In context LMA solution solar problem, present scenarios...
A minimal model based on the standard SU(2)\ifmmode\times\else\texttimes\fi{}U(1) gauge theory, with spontaneous $\mathrm{CP}$ violation and natural flavor conservation, is presented in some detail. In particular it shown that one minima of classical Higgs potential leads to breaking. The generalized Cabibbo-type matrix real there no manner Kobayashi-Maskawa. nonconservation entirely due Higgs-boson exchange, can be characterized by a single phase for an arbitrary number quark generations.
We propose an extension of the hypothesis Minimal Flavour Violation (MFV) to general multi-Higgs Models without assumption Natural Conservation in Higgs sector. study detail under what conditions neutral couplings are only functions $V_{CKM}$ and a MFV expansion for fermions.
Flavour effects due to lepton interactions in the early Universe may have played an important role generation of cosmological baryon asymmetry through leptogenesis. If only source high-energy CP violation comes from left-handed leptonic sector, then it is possible establish a bridge between flavoured leptogenesis and low-energy violation. We explore this connection taking into account our present knowledge about neutrino parameters matter–antimatter observed Universe. In framework, we find...