PT Journal
AU Gonzalez-Alonso, M
   Pich, A
   Rodriguez-Sanchez, A
TI Updated determination of chiral couplings and vacuum condensates from hadronic tau decay data
SO Physical Review D
JI Phys. Rev. D
PY 2016
BP 014017
EP 14pp
VL 94
IS 1
DI 10.1103/PhysRevD.94.014017
LA English
AB We analyze the lowest spectral moments of the left-right two-point correlation function, using all known short-distance constraints and the recently updated ALEPH V – A spectral function from tau decays. This information is used to determine the low-energy couplings L-10 and C-87 of chiral perturbation theory and the lowest-dimensional contributions to the operator product expansion of the left-right correlator. A detailed statistical analysis is implemented to assess the theoretical uncertainties, including violations of quark-hadron duality.
ER