4 papers
On a connection between gravitation and quantum chromodynamics
J. A. Martins Simoes
In this paper we point out a remarkable numerical relation between the large scale parameters of gravitation G_N and H_0 and the two fundamental parameters of quantum cromodynamics…
The cosmological constant, neutrino masses and parity symmetry in 6+1 dimensions
José Antonio Martins Simões
In this paper we propose that the cosmological constant scale and neutrino masses have a common origin: a new spontaneously broken scalar field. This hypothesis is implemented in a…
Heavy Majorana neutrinos at a very large electron-proton collider
F. M. L. Almeida, Y. A. Coutinho, J. A. Martins Simões +1
We study the discovery potential for detecting new neutral heavy Majorana leptons as suggested by some extentions of the Standard Model in recently proposed electron-proton collide…
Spontaneous parity breaking and fermion masses
J. A. Martins Simoes, Y. A. Coutinho, C. M. Porto
We present a SU(2)_L * SU(2)_R * U(1) left-right symmetric model for elementary particles and their connection with the fermion mass spectrum. New mirror fermions and a minimal set…