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Long distance behavior of O(N)-model correlators in de Sitter space and the resummation of secular terms
(Springer, 2018-10)
We analyze the long distance behavior of the two-point functions for an interacting scalar O(N) model in de Sitter spacetime. Following our previous work, this behavior is analyzed by analytic continuation of the Euclidean ...
A path integral realization of joint JT¯ , TJ¯ and TT¯ flows
(Springer, 2020-07)
We recast the joint JT¯ , TJ¯ and TT¯ deformations as coupling the original theory to a mixture of topological gravity and gauge theory. This geometrizes the general flow triggered by irrelevant deformations built out of ...
Weak decays of magnetized charged pions in the symmetric gauge
(American Physical Society, 2020-02)
We consider the decay π-→lνl (l=e-,μ-) in the presence of an arbitrary large uniform magnetic field, using the symmetric gauge. The consequences of the axial symmetry of the problem and the issue of angular momentum ...
Non-perturbative RPA-method implemented in the Coulomb gauge QCD Hamiltonian: From quarks and gluons to baryons and mesons
(Springer, 2018-02)
Starting from an algebraic model based on the QCD-Hamiltonian and previously applied to study meson states, we have developed an extension of it in order to explore the structure of baryon states. In developing our approach ...
Compatibility of a model for the QCD-Pomeron and chiral-symmetry breaking phenomenologies
(1997-01-02)
The phenomenology of a QCD-Pomeron model based on the exchange of a pair of non-perturbative gluons, i.e. gluon fields with a finite correlation length in the vacuum, is studied in comparison with the phenomenology of QCD ...
Compatibility of a model for the QCD-Pomeron and chiral-symmetry breaking phenomenologies
(1997-01-02)
The phenomenology of a QCD-Pomeron model based on the exchange of a pair of non-perturbative gluons, i.e. gluon fields with a finite correlation length in the vacuum, is studied in comparison with the phenomenology of QCD ...
Scalar fluctuations of the scalar metric during inflation from a non-perturbative 5D large-scale repulsive gravity model
(Springer, 2013-10-16)
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 ...
Cold magnetized quark matter at finite density in a nonlocal chiral quark model
(Springer, 2021-04)
We study the behavior of two-flavor dense quark matter under the influence of an external magnetic field in the framework of a nonlocal chiral quark model with separable interactions. The nonlocality is incorporated in the ...
Probing the infraed behavior of the ghost-gluon vertex in quantum chromodynamics
(Universidade Estadual Paulista (Unesp), 2011-03-30)
O presente trabalho diz respeito ao vértice ghost-gluon da Cromodinâmica Quântica, o qual, de acordo com a identidade de Taylor, não possui correções perturbativas no calibre de Landau para uma determinada configuração de ...