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Modeling electromagnetic form factors of light and heavy pseudoscalar mesons
(2008-01-01)
The electromagnetic form factors of light and heavy pseudoscalar mesons are calculated within two covariant constituent-quark models, viz., a light-front and a dispersion relation approach. We investigate the details and ...
Covariance for electromagnetic current for two bosons at higher order in the light front
(2010-12-01)
We show that the electromagnetic current for a system composed by two charged bosons has a structure of many bodies even in the impulse approximation, when described in the time x +. In terms of the two body component for ...
Covariance for electromagnetic current for two bosons at higher order in the light front
(2010-12-01)
We show that the electromagnetic current for a system composed by two charged bosons has a structure of many bodies even in the impulse approximation, when described in the time x +. In terms of the two body component for ...
Covariance for electromagnetic current for two bosons at higher order in the light front
(Amer Inst Physics, 2010-01-01)
We show that the electromagnetic current for a system composed by two charged bosons has a structure of many bodies even in the impulse approximation, when described in the time x(+) In terms of the two body component for ...
Why Pair Production Cures Covariance in the Light-Front?
(Springer/plenum Publishers, 2009-08-01)
We show that the light-front vacuum is not trivial, and the Fock space for positive energy quanta solutions is not complete. As an example of this non triviality we have calculated the electromagnetic current for scalar ...
Why Pair Production Cures Covariance in the Light-Front?
(Springer/plenum Publishers, 2009-08-01)
We show that the light-front vacuum is not trivial, and the Fock space for positive energy quanta solutions is not complete. As an example of this non triviality we have calculated the electromagnetic current for scalar ...
Pole Approximation for pion electromagnetic form factor within light-front dynamics
(2007-01-01)
We carefully investigate the reliability of the propagator Pole Approximation, i.e. the approximation of retaining only the propagator poles in the evaluation of the Mandelstam covariant expression for the electromagnetic ...
Why Pair Production Cures Covariance in the Light-Front?
(Springer/plenum Publishers, 2013)
Light-front model of the kaon electromagnetic current
(World Scientific Publ Co Pte Ltd, 2003-01-01)
The kaon electromagnetic form factor is extracted from both components of the current: J(+) and J(-) with a pseudo-scalar coupling of the quarks to the meson. The pair production process does not contribute to J(+) in the ...