Speaker
Maarten Golterman
(San Francisco State University)
Description
We determined the NLO chiral low-energy constant L_10, and various combinations of NNLO chiral low-energy constants employing recently revised ALEPH results for the non-strange vector (V) and axial-vector (A) hadronic tau decay distributions and recently updated RBC/UKQCD lattice data for the non-strange V-A two-point function. In this talk, we explain the ingredients of this determination. Our errors are at or below the level expected for contributions of yet higher order in the chiral expansion, and we therefore believe that our analysis exhausts the possibilities of what can be meaningfully achieved in an NNLO analysis.
Primary author
Maarten Golterman
(San Francisco State University)
Co-authors
Dr
Anthony Francis
(York University)
Prof.
Diogo Boito
(University of Sao Paulo)
Dr
Jamie Hudspith
(York University)
Prof.
Kim Maltman
(York University)
Prof.
Randy Lewis
(York University)
Prof.
Santi Peris
(Autonomous University of Barcelona)
