Lattice Results for Low Moments of Light Meson Distribution Amplitudes

R. Arthur; P. A. Boyle; D. Brömmel; M. A. Donnellan; J. M. Flynn; A. Jüttner; T. D. Rae; C. T. C. Sachrajda

doi:10.1103/PhysRevD.83.074505

Lattice Results for Low Moments of Light Meson Distribution Amplitudes

High Energy Physics - Lattice 2011-04-22 v1

Authors: R. Arthur , P. A. Boyle , D. Brömmel , M. A. Donnellan , J. M. Flynn , A. Jüttner , T. D. Rae , C. T. C. Sachrajda

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Abstract

As part of the UKQCD and RBC collaborations' N_f=2+1 domain-wall fermion phenomenology programme, we calculate the first two moments of the light-cone distribution amplitudes of the pseudoscalar mesons pion and kaon and the (longitudinally-polarised) vector mesons rho, K-star and phi. We obtain the desired quantities with good precision and are able to discern the expected quark-mass dependence of SU(3)-flavour breaking effects. An important ingredient of the calculation is the nonperturbative renormalisation of lattice operators using the RI'/MOM technique.

Keywords

lattice QCD light meson distribution amplitudes moments domain-wall fermions nonperturbative renormalization SU(3) flavour breaking

Cite

@article{arxiv.1011.5906,
  title  = {Lattice Results for Low Moments of Light Meson Distribution Amplitudes},
  author = {R. Arthur and P. A. Boyle and D. Brömmel and M. A. Donnellan and J. M. Flynn and A. Jüttner and T. D. Rae and C. T. C. Sachrajda},
  journal= {arXiv preprint arXiv:1011.5906},
  year   = {2011}
}

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21 pages, 9 figures

Lattice Results for Low Moments of Light Meson Distribution Amplitudes

Abstract

Keywords

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