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pro vyhledávání: '"Alves, Joao M. P."'
Autor:
Alves, João M.
In this paper, we introduce Unitary Flavour Violation to produce Multi-Higgs Doublets Models where all flavour parameters are contained within three unitary matrices. After that, we identify two of its subclasses, the left and right models, which hav
Externí odkaz:
http://arxiv.org/abs/2404.18559
Publikováno v:
Eur. Phys. J. C 83, 940 (2023)
In multi-Higgs-doublet models, requiring simultaneously that (i) CP violation only arises spontaneously, (ii) tree level scalar flavour changing couplings are absent and (iii) the fermion mixing matrix is CP violating, can only be achieved in a very
Externí odkaz:
http://arxiv.org/abs/2306.14952
Autor:
Alves, João M., Branco, G. C., Cherchiglia, A. L., Nishi, C. C., Penedo, J. T., Pereira, Pedro M. F., Rebelo, M. N., Silva-Marcos, J. I.
Publikováno v:
Physics Reports 1057 (2024) 1-69
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 to new physics effects that can be tested in experiments at LHC and High-Luminosity LHC.
Externí odkaz:
http://arxiv.org/abs/2304.10561
Autor:
Alves, João M., Botella, Francisco J., Branco, Gustavo C., Cornet-Gomez, Fernando, Nebot, Miguel
We analyse a possible connection between CP violations in the quark and lepton sectors, parametrised by the CKM and PMNS phases. If one assumes that CP breaking arises from complex Yukawa couplings, both in the quark and lepton sectors, the above con
Externí odkaz:
http://arxiv.org/abs/2105.14054
We conjecture the existence of a relation between elementary scalars and fermions, making it plausible the existence of three Higgs doublets. We introduce a Trinity Principle (TP) which, given the fact that there are no massless quarks, requires the
Externí odkaz:
http://arxiv.org/abs/2005.13518
Autor:
Alves, Joao M., Botella, Francisco J., Branco, Gustavo C., Cornet-Gomez, Fernando, Nebot, Miguel, Silva, Joao P.
Publikováno v:
Phys. Rev. D 98, 035046 (2018)
We study Two-Higgs-Doublet Models (2HDM) where Abelian symmetries have been introduced, leading to a drastic reduction in the number of free parameters in the 2HDM. Our analysis is inspired in BGL models, where, as the result of a symmetry of the Lag
Externí odkaz:
http://arxiv.org/abs/1803.11199
Autor:
Alves, Joao M., Botella, Francisco J., Branco, Gustavo C., Cornet-Gomez, Fernando, Nebot, Miguel
We propose a class of Two Higgs Doublet Models where there are Flavour Changing Neutral Currents (FCNC) at tree level, but under control due to the introduction of a discrete symmetry in the full Lagrangian. It is shown that in this class of models,
Externí odkaz:
http://arxiv.org/abs/1703.03796
Akademický článek
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Akademický článek
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Autor:
Tullume-Vergara, Percy O., Caicedo, Kelly Y. O., Tantalean, Jose F. C., Serrano, Myrna G., Buck, Gregory A., Teixeira, Marta M. G., Shaw, Jeffrey J., Alves, Joao M. P.
Publikováno v:
Pathogens; Dec2023, Vol. 12 Issue 12, p1409, 21p
