A new approach to the parameterization of pion form factors is presented and for illustration applied to the pion vector form factor. It has the correct analytic structure, is at low energies consistent with recent high accuracy analyses of $\pi\pi$ scattering phase shifts and, at high energies, maps smoothly onto the well--known, successful isobar model
We study the constraints arising on the expansion parameters c and d of the pion electromagnetic for...
We study the constraints arising on the expansion parameters c and d of the pion electromagnetic for...
We start with a brief motivation why the pion transition form factor is interesting and, in particul...
4 páginas, 2 figuras, 3 tablas.-- Comunicación presentada a la 9ª High-Energy Physics International ...
Extending a recent suggestion for hyperon form factors to the nucleon case, dispersion theory is use...
Extending a recent suggestion for hyperon form factors to the nucleon case, dispersion theory is use...
Recent data from high-statistics experiments that have measured the modulus of the pion electromagne...
57 pages, 12 figuresInternational audienceDispersive representations of the pi-pi scattering amplitu...
26 pages, 4 eps figsWe analyze a pion form factor formulation which fulfills the Analyticity require...
Recent data from high-statistics experiments that have measured the modulus of the pion electromagne...
26 pages, 4 eps figsWe analyze a pion form factor formulation which fulfills the Analyticity require...
Dispersive representations of the ππ scattering amplitudes and pion form factors, valid at two-loop ...
We derive a new parametrization for the scalar pion form factors that allows us to analyze data over...
We present new parameterizations of vector and axial nucleon form factors. We maintain an excellent ...
We perform an analysis of the form factors that rule the structure-dependent amplitude in radiative ...
We study the constraints arising on the expansion parameters c and d of the pion electromagnetic for...
We study the constraints arising on the expansion parameters c and d of the pion electromagnetic for...
We start with a brief motivation why the pion transition form factor is interesting and, in particul...
4 páginas, 2 figuras, 3 tablas.-- Comunicación presentada a la 9ª High-Energy Physics International ...
Extending a recent suggestion for hyperon form factors to the nucleon case, dispersion theory is use...
Extending a recent suggestion for hyperon form factors to the nucleon case, dispersion theory is use...
Recent data from high-statistics experiments that have measured the modulus of the pion electromagne...
57 pages, 12 figuresInternational audienceDispersive representations of the pi-pi scattering amplitu...
26 pages, 4 eps figsWe analyze a pion form factor formulation which fulfills the Analyticity require...
Recent data from high-statistics experiments that have measured the modulus of the pion electromagne...
26 pages, 4 eps figsWe analyze a pion form factor formulation which fulfills the Analyticity require...
Dispersive representations of the ππ scattering amplitudes and pion form factors, valid at two-loop ...
We derive a new parametrization for the scalar pion form factors that allows us to analyze data over...
We present new parameterizations of vector and axial nucleon form factors. We maintain an excellent ...
We perform an analysis of the form factors that rule the structure-dependent amplitude in radiative ...
We study the constraints arising on the expansion parameters c and d of the pion electromagnetic for...
We study the constraints arising on the expansion parameters c and d of the pion electromagnetic for...
We start with a brief motivation why the pion transition form factor is interesting and, in particul...