Index

• README
• N-001-cartesian-pions.jl
  Cartesian indices for $3\pi$ decays
• N-002-covariant3pi.jl
  Projection of covariant amplitudes

  • Define variables
  • Evaluate four-momenta
  • Spin-1 vector
  • Compute the amplitude
  • Spin-2 tensor
  • The $J^{PC}=2^{++}$ sector
• N-003-omega.jl
  Comparison of the Dalitz-plot models

  • The case $\omega \to 3\pi$: small dalitz, tails of $\rho$
  • Two model: regular $\rho$ and modified $\rho$
  • MC toys: likelihood ratio on pseudodata
  • Analytic expectation for toys