Navegação Ciências Exatas e da Terra por Autor "Luna, Emerson Gustavo de Souza"
Resultados 1-11 de 11
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Energy-dependent dipole form factor in a QCD-inspired model
(2016) [Artigo de periódico] -
Forward elastic scattering and Pomeron models
(2018) [Artigo de periódico]Recent data from LHC13 by the TOTEM Collaboration indicate an unexpected decrease in the value of the ρ parameter and a σtot value in agreement with the trend of previous measurements at 7 and 8 TeV. These data at 13 TeV ... -
Forward elastic scattering : dynamical gluon mass and semihard interactions
(2019) [Artigo de periódico]The role of low-x parton dynamics in dictating the high-energy behavior of forward scattering observables at LHC energies is investigated using a QCD-based model with even-under-crossing amplitude dominance at high-energies. ... -
Matter-antimatter asymmetry and non-inertial effects
(2021) [Artigo de periódico]We investigate non-inertial effects on CP-violating processes using a model, based on the framework of quantum field theory in curved spacetimes, devised to account for the decay of accelerated particles. We show that the ... -
Nonperturbative gluon exchange in pp elastic scattering at TeV energies
(2023) [Artigo de periódico]We investigate the two-gluon-exchange model of the Pomeron using nonperturbative gluon propagators characterized by a dynamical mass scale. We present the results for an analysis of the available p p differential cross ... -
Nonperturbative QCD effects in forward scattering at the LHC
(2015) [Artigo de periódico]We study infrared contributions to semihard parton-parton interactions by considering an effective charge whose finite infrared behavior is constrained by a dynamical mass scale. Using an eikonal QCDbased model in order ... -
Proton-proton forward scattering at the LHC
(2019) [Artigo de periódico]Recently the TOTEM experiment at the LHC has released measurements at √s=13 TeV of the proton-proton total cross section, σtot, and the ratio of the real to imaginary parts of the forward elastic amplitude, ρ. Since then ... -
QCD effective charges and the structure function F2 at small-x : higher twist effects
(2020) [Artigo de periódico]We consider the effect of higher twist operators of the Wilson operator product expansion in the structure function F2(x, Q 2) at small-x, taking into account QCD effective charges whose infrared behavior is constrained ... -
Soft pomeron in light of the LHC correlated data
(2021) [Artigo de periódico]The LHC has released precise measurements of elastic proton-proton scattering that provide a unique constraint on the asymptotic behavior of the scattering amplitude at high energies. Recent reanalyses of part of these ... -
Soft pomerons and the forward LHC data
(2018) [Artigo de periódico]Recent data from LHC13 by the TOTEM Collaboration on σtotand ρhave indicated disagreement with all the Pomeron model predictions by the COMPETE Collaboration (2002). On the other hand, as recently demonstrated by Martynov ... -
The 125 GeV boson : a composite scalar?
(2013) [Artigo de periódico]Assuming that the 125 GeV particle observed at the LHC is a composite scalar and responsible for the electroweak gauge symmetry breaking, we consider the possibility that the bound state is generated by a non-Abelian gauge ...
