23 citations · 38 across the 7 of their papers we have counts for
7 papers
A perturbative production of massive Z bosons and fermion-antifermion pairs from the vacuum in the de Sitter Universe
Diana Dumitrele, Mihaela-Andreea Băloi, Cosmin Crucean
In this paper we study the problem of neutral electro-weak interactions in a de Sitter geometry. We develop the formalism of reduction for the Proca field with the help of the solu…
Z boson emission by a neutrino in de Sitter expanding universe
Mihaela-Andreea Baloi, Cosmin Crucean, Diana Dumitrele
Production of Z bosons in emission processes by neutrinos in the expanding de Sitter universe is studied by using perturbative methods. The total probability and transition rate fo…
Production of charged scalar particles with well defined angular momentum in de Sitter spacetime
Mihaela-Andreea Baloi
We study the production of charged scalar particles with well defined angular momentum, in the presence of an external Coulomb field on de Sitter expanding universe. This process o…
Reply to the "Comment on Fermion production in a magnetic field in a de Sitter Universe"
Cosmin Crucean, Mihaela-Andreea Băloi
In this paper we study the problem of gauge invariance of the first order transition amplitudes in de Sitter QED in Coulomb gauge. We consider the gauge transformations which prese…
Fermion production in a magnetic field in a de Sitter Universe
Cosmin Crucean, Mihaela-Andreea Baloi
The process of fermion production in the field of a magnetic dipole on a de Sitter expanding universe is analyzed. The amplitude and probability for production of massive fermions…
Annihilation of the scalar pair into a photon on de Sitter spacetime
Mihaela-Andreea Baloi
The annihilation of massive scalar particles in one photon on de Sitter expanding universe is studied, using perturbation theory. The amplitude and probability corresponding to thi…
Fermion production by a dependent of time electric field in de Sitter universe
Cosmin Crucean
Fermion production by the electric field of a charge on de Sitter expanding universe is analyzed. The amplitude and probability of pair production are computed. We obtain from our…