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Neutrinoless double beta decay and QCD running at low energy scales
(2018)
There is a common belief that the main uncertainties in the theoretical analysis of neutrinoless double beta (0 nu beta beta) decay originate from the nuclear matrix elements. Here, we uncover another previously overlooked ...
Scalar fluctuations of the scalar metric during inflation from a non-perturbative 5D large-scale repulsive gravity model
(2013)
We develop a non-perturbative formalism for scalar metric fluctuations from a 5D extended version of general relativity in vacuum. In this work we concentrate our efforts on calculations valid on large cosmological scales, ...
Scalar fluctuations of the scalar metric during inflation from a non-perturbative 5D large-scale repulsive gravity model
(2013)
We develop a non-perturbative formalism for scalar metric fluctuations from a 5D extended version of general relativity in vacuum. In this work we concentrate our efforts on calculations valid on large cosmological scales, ...
Enhancement in the double Higgs boson production by e+ e− annihilation and physics beyond the standard model.
(Universidade Estadual Paulista (Unesp), 2018-03-29)
The main goal of this dissertation is to show the enhancement of the cross-section for the double Higgs production through pair annihilation by including effective interactions and through the non-perturbative Sommerfeld ...
RELATING THE QCD POMERON TO AN EFFECTIVE GLUON MASS
(American Physical Soc, 2014)
Inflationary back-reaction effects from Relativistic Quantum Geometry
(Elsevier, 2016-03)
We study the dynamics of scalar metric fluctuations in a non-perturbative variational formalism recently introduced, by which the dynamics of a geometrical scalar field θ, describes the quantum geometrical effects on a ...
S-matrix bootstrap for effective field theories: massless pions
(2021-06-01)
We use the numerical S-matrix bootstrap method to obtain bounds on the two leading Wilson coefficients (or low energy constants) of the chiral lagrangian controlling the low-energy dynamics of massless pions. This provides ...
Effective action for delta potentials: Spacetime-dependent inhomogeneities and Casimir self-energy
(American Physical Society, 2021-03)
We study the vacuum fluctuations of a quantum scalar field in the presence of a thin and inhomogeneous flat mirror, modeled with a delta potential. Using heat-kernel techniques, we evaluate the Euclidean effective action ...
Re+e- and an effective QCD charge
(2016-01-25)
We consider the electron-positron annihilation process into hadrons Re+e- up to O(αs3), and we adopt the smearing method suggest by Poggio, Quinn, and Weinberg to confront the experimental data with theory. As a theoretical ...