ar X iv : 1 30 6 . 26 45 v 1 [ nu cl - t h ] 1 1 Ju n 20 13 Pion distribution amplitude from lattice - QCD
نویسندگان
چکیده
I. C. Cloët, L. Chang, C.D. Roberts, S.M. Schmidt, and P.C. Tandy Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA Institut für Kernphysik, Forschungszentrum Jülich, D-52425 Jülich, Germany Institute for Advanced Simulation, Forschungszentrum Jülich and JARA, D-52425 Jülich, Germany Center for Nuclear Research, Department of Physics, Kent State University, Kent OH 44242, USA (Dated: 28 May 2013)
منابع مشابه
ar X iv : h ep - p h / 00 06 19 3 v 1 1 6 Ju n 20 00 ERROR PROPAGATION IN QCD FITS
The parton momentum density distributions of the proton were obtained from a NLO QCD analysis of HERA and fixed target structure function data. The resulting parton distribution set includes the full information on errors and correlations.
متن کاملar X iv : h ep - p h / 96 07 47 1 v 1 3 0 Ju l 1 99 6 Non - leptonic weak decays and final state interactions in lattice QCD ∗ †
We show that, under a reasonable " smoothness " hypothesis, it is possible to extract informations on the amplitude and phase of two-body non-leptonic weak decay matrix elements from the study of Euclidean correlation functions in lattice QCD.
متن کاملar X iv : h ep - l at / 0 60 80 21 v 2 1 4 Ju n 20 07 The pion form factor from lattice QCD with two dynamical flavours
We compute the electromagnetic form factor of the pion using non-perturbatively O(a) improved Wilson fermions. The calculations are done for a wide range of pion masses and lattice spacings. We check for finite size effects by repeating some of the measurements on smaller lattices. The large number of lattice parameters we use allows us to extrapolate to the physical point. For the square of th...
متن کاملar X iv : h ep - p h / 05 06 22 6 v 1 2 3 Ju n 20 05 B - meson distribution amplitudes ∗
B-meson light-cone distribution amplitudes are discussed in these lectures in the framework of HQET. The evolution equation for the leading-twist distribution amplitude is derived in one-loop approximation. QCD sum rules for distribution amplitudes are discussed.
متن کاملar X iv : h ep - p h / 01 02 24 5 v 2 1 J ul 2 00 1 A Study of Light Mesons on the Transverse Lattice
We present results from a study of light meson spectra and structure obtained within the framework of light-front QCD formulated on a transverse lattice. We discuss how imposing Lorentz covariance conditions on meson dispersion relations allows determination of parameters in the transverse lattice Hamiltonian. The pion distribution amplitude obtained in this framework is rather close to its asy...
متن کامل