On the Radiative Pion Decay

Abstract

A reanalysis of the radiative pion decay together with the calculation of the radiative corrections within chiral perturbation theory (CHPT) is performed. The amplitude of this decay contains an inner Bremsstrahlung contribution and a structure-dependent part that are both accessible in experiments. In order to obtain a reliable estimate of the hadronic contributions we combine the CHPT result with a large-N_C expansion and experimental data on other decays, which makes it possible to determine the occurring coupling constants.

22 pages, 2 figures

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Cited by in corpus (34)

• Mesonic low-energy constants
• Resonance saturation in the odd-intrinsic parity sector of low-energy QCD
• Searches for Decays of New Particles in the DUNE Multi-Purpose Near Detector
• New Precise Measurement of the Pion Weak Form Factors in the Pi+ -> e+ nu gamma Decay
• First lattice calculation of radiative leptonic decay rates of pseudoscalar mesons
• Neutral Pion Lifetime Measurements and the QCD Chiral Anomaly
• Determination of the Chiral Couplings L_10 and C_87 from Semileptonic Tau Decays
• Updated determination of chiral couplings and vacuum condensates from hadronic tau decay data
• Hadronic Light-by-Light and the Pion Polarizability
• Comparison of lattice QCD+QED predictions for radiative leptonic decays of light mesons with experimental data
• Low-energy constants and condensates from the tau hadronic spectral functions
• Soft Photon Problem in Leptonic B-decays
• Holography, chiral Lagrangian and form factor relations
• Computation of the p6 order chiral Lagrangian coefficients from the underlying theory of QCD
• The Muon Anomalous Magnetic Moment and the Pion Polarizability
• A Combined NNLO Lattice-Continuum Determination of $L_{10}^r$
• NNLO low-energy constants from flavor-breaking chiral sum rules based on hadronic tau-decay data
• Methods for high-precision determinations of radiative-leptonic decay form factors using lattice QCD
• Accelerated electron thermometer: observation of 1D Planck radiation
• Computation of the coefficients for $p^6$ order anomalous chiral Lagrangian
• Radiative (anti)neutrino energy spectra from muon, pion, and kaon decays
• Study of the Radivative Pion Decay
• Pion radiative weak decay from the instanton vacuum
• ChPT calculations of pion formfactors
• New method for fitting the low-energy constants in chiral perturbation theory
• Efficient lattice QCD computation of radiative-leptonic-decay form factors at multiple positive and negative photon virtualities
• Polarization effects in radiative decay of polarized $\tau$ lepton
• Chiral low-energy constants L_10 and C_87 from hadronic tau decays
• Hadronic and radiative decays of the tau lepton
• Anomalous processes and leading logarithms
• From hadronic tau decays to the chiral couplings L_10 and C_87
• Bayesian method for fitting the low-energy constants in chiral perturbation theory
• Status of chiral perturbation theory
• Vacuum free energy, quark condensate shifts and magnetization in three-flavor chiral perturbation theory to $\mathcal{O}(p^6)$ in a uniform magnetic field