Parton Distribution Amplitudes and Non-Perturbative Renormalisation
arXiv:0810.1669
Abstract
We present results for the first two moments of the light-cone distribution amplitudes of the pion and kaon pseudo-scalar mesons and of the rho, K* and phi vector mesons. The calculations are performed on the RBC/UKQCD collaborations' ensembles generated with the Iwasaki gauge action and with 2+1 flavours of domain wall fermions. In addition we also provide some results on the necessary non-perturbative renormalisation which we perform using the Rome-Southampton method. We discuss the benefits of the momentum source approach such as much smaller statistical errors and the possibility to see effects of the discretisation.
7 pages, 5 figures, Talk given at the XXVI International Symposium on Lattice Field Theory, July 14 - 19 2008, Williamsburg, Virginia, USA
References in corpus (5)
- Physical Results from 2+1 Flavor Domain Wall QCD and SU(2) Chiral Perturbation Theory
- Moments of pseudoscalar meson distribution amplitudes from the lattice
- 2+1 flavor domain wall QCD on a (2 fm)^3 lattice: light meson spectroscopy with Ls = 16
- Non-perturbative renormalization of quark bilinear operators and B_K using domain wall fermions
- Lattice Results for Vector Meson Couplings and Parton Distribution Amplitudes