ChPT calculations of pion formfactors

Abstract

An overview on chiral perturbation theory calculations of form factors is presented. The main focus is given on the form factors related to the lightest meson, pion, namely: pion decay constant, pion vector and scalar form factor, radiative pion decay and transition form factor. A pure calculation within the effective theory can be extended using further methods, as resonance chiral theory and leading logarithm calculations.

4 pages, 2 figures, presented at 16th International QCD Conference (QCD12), Montpellier, France, July 2-7, 2012

References in corpus (11)

• Measurement of sigma(e+ e- -> pi+ pi-) from threshold to 0.85 GeV^2 using Initial State Radiation with the KLOE detector
• Form Factors in the radiative pion decay
• A New Measurement of the ${\pi }^0$ Radiative Decay Width
• New Precise Measurement of the Pion Weak Form Factors in the Pi+ -> e+ nu gamma Decay
• On the Radiative Pion Decay
• Tests of non-standard electroweak couplings of right-handed quarks
• On the pion decay constant
• The Massive O(N) Non-linear Sigma Model at High Orders
• MesonNet Workshop on Meson Transition Form Factors
• Leading Chiral Logarithms for Pion Form Factors to Arbitrary Number of Loops
• Neutral pseudoscalar meson decays: pi0, eta -> gamma gamma in SU(3) limit

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• Two-Hadron Saturation for the Pseudoscalar-Vector-Vector Correlator and Phenomenological Applications
• BHLS${}_2$ Upgrade : $\tau$ spectra, muon HVP and the [${\pi }^0,\eta ,{\eta }^{\prime }$] System