Neutrino production of single pions: Dipole description

  title={Neutrino production of single pions: Dipole description},
  author={Boris Z. Kopeliovich and Ivan Schmidt and Marat Siddikov},
The light-cone distribution amplitudes for the axial current are derived within the instanton vacuum model (IVM), which incorporates nonperturbative effects including spontaneous chiral symmetry breaking. This allows to extend applicability of the dipole approach, usually used in the perturbative domain, down to $Q^{2}\to0$, where partially conserved axial current (PCAC) imposes a relation between the neutrino-production cross section and the one induced by pions. A dramatic breakdown of the… CONTINUE READING

Create an AI-powered research feed to stay up to date with new papers like this posted to ArXiv