We have computed meson and muon polarized radiative decays. The undergoing dynamics giving rise to lepton and photon polarizations is examined in the soft and hard region of momenta. The particular configurations made by right-handed leptons with accompanying photons are investigated and interpreted as a manifestation of th axial anomaly. The photon polarization asymmetry is evaluated. Finiteness of polarized amplitudes against infrared and collinear singularities is shown to take place with mechanisms distinguishing between right handed and left handed final leptons.
Photon polarization asymmetry in mesons and muon radiative decays and the axial anomaly / Trentadue, Luca. - (2011), pp. 169-183. (Intervento presentato al convegno Quantum chromodynamics and beyond: Gribov-80 memorial volume. Proceedings, Memorial Workshop devoted to the 80th birthday of V.N. Gribov tenutosi a Miramare Trieste nel 26-28 May 2010).
Photon polarization asymmetry in mesons and muon radiative decays and the axial anomaly
TRENTADUE, Luca
2011-01-01
Abstract
We have computed meson and muon polarized radiative decays. The undergoing dynamics giving rise to lepton and photon polarizations is examined in the soft and hard region of momenta. The particular configurations made by right-handed leptons with accompanying photons are investigated and interpreted as a manifestation of th axial anomaly. The photon polarization asymmetry is evaluated. Finiteness of polarized amplitudes against infrared and collinear singularities is shown to take place with mechanisms distinguishing between right handed and left handed final leptons.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
