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Showing 1 to 3 of 3 for “"Pion form factors"”.
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Lattice QCD calculations of Kl3 and pion form factors using partially twisted boundary conditions
… of the K → π semi-leptonic (K<sub>l3</sub>) and pion electromagnetic form factors using partially twisted boundary conditions. These form factors parameterize low-energy-non-perturbative strong interaction effects and cannot therefore be calculated in perturbative QCD. The pion electromagnetic …
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Off-shell pion electromagnetic form factors in chiral perturbation theory
The electromagnetic form factors of the pion play a role in investigations of various electromagnetic interactions. We calculate the off-shell pion form factors using chiral perturbation theory, which is the effective theory for QCD at low energies. Chiral perturbation theory has previously been …
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Three-Point Correlator and Pion Form Factor in Quantum Chromodynamics: Methods of Calculation for Two-Loop Spectral Density
… two axial currents which are the basis of the pion form factor analysis within the framework of QCD sum rules and local quark-hadron duality approach. The nature of various types of contributions is established which are related to particular regions of momentum integrations inside Feynman …