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pro vyhledávání: '"Gonçalves B."'
In extended Higgs models, a discrete symmetry is needed in the quark sector to avoid tree-level flavor-changing neutral currents. However, this is not necessary the case in the lepton sector. We consider a model in which one Higgs couples to quarks a
Externí odkaz:
http://arxiv.org/abs/2301.08641
Autor:
Bundaleska, N., Felizardo, E., Santhosh, N.M., Upadhyay, K.K., Bundaleski, N., Teodoro, O.M.N.D., Botelho do Rego, A.M., Ferraria, A.M., Zavašnik, J., Cvelbar, U., Abrashev, M., Kissovski, J., Mão de Ferro, A., Gonçalves, B., Alves, L.L., Montemor, M.F., Tatarova, E.
Publikováno v:
In Applied Surface Science 15 December 2024 676
Scalar triplet extensions of the Standard Model provide an interesting playground for the explanation of neutrino mass suppression through the type-II seesaw mechanism. Propelled by the possible connections with leptonic CP violation, we explore unde
Externí odkaz:
http://arxiv.org/abs/2109.13179
Publikováno v:
Phys. Rev. D 104, 053008 (2021)
The recent measurement of the muon $g - 2$ anomaly continues to defy a Standard Model explanation, but can be accommodated within the framework of two Higgs doublet models. If one further includes extra fermion content in the form of a generation of
Externí odkaz:
http://arxiv.org/abs/2104.03367
Publikováno v:
Fortsch.Phys. 71 (2023), 2200153
We construct a cosmological model from the inception of the Friedmann-Lem\^aitre-Robertson-Walker metric into the field equations of the f(R,L_m) gravity theory, with R being the Ricci scalar and L_m being the matter lagrangian density. The formalism
Externí odkaz:
http://arxiv.org/abs/2101.05918
We present a study of the evolutionary state of a few lithium-rich giant stars based on the Gaia DR2 parallaxes and photometry. We also investigate the chromospheric activity, the presence of a surface magnetic field, and the radial velocity for our
Externí odkaz:
http://arxiv.org/abs/2008.02948
Autor:
Linares, R., Seabra, C. C., Zagatto, V. A. B., Scarduelli, V., Gasques, L., Chamon, L. C., Gonçalves, B. R., Junior, D. R. Mendes, Lépine-Szily, A.
Publikováno v:
Phys. Rev. C 101, 014611 (2020)
Background: Neutron transfer measurements for the $^{18}$O + $^{28}$Si system have shown that the experimental one-neutron and two-neutron transfer cross sections are well reproduced with spectroscopic amplitudes from two different shell model intera
Externí odkaz:
http://arxiv.org/abs/2001.07768
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Autor:
Ferreira, P. M., Gonçalves, B. L.
We analyse the possibility of charge breaking minima developing in the Higgs triplet model, and under what conditions they are deeper than charge-preserving ones. Analytical expressions relating the depth of minima of different types are deduced. A g
Externí odkaz:
http://arxiv.org/abs/1911.09746
In this work we analyze hydrostatic equilibrium configurations of neutron stars in a non-minimal geometry-matter coupling (GMC) theory of gravity. We begin with the derivation of the hydrostatic equilibrium equations for the $f(R,L) $ gravity theory,
Externí odkaz:
http://arxiv.org/abs/1904.00282