Speaker
Sheng Pin Chang
(Institute of Physics National Yang Ming Chiao Tung University)
Description
The light-cone distribution amplitude (LCDA) is a fundamental non-perturbative quantity for understanding hadron structure and exclusive scattering processes. We report on our calculation of the pion and kaon LCDAs using the heavy-quark operator product expansion (HOPE) framework. This method employs an OPE analysis of hadronic amplitudes through the inclusion of a fictitious valence heavy quark. In these talk, we report progress on the determination of the first three nontrivial Mellin moments of the kaon LCDAs from dynamical lattice QCD calculations, thereby demonstrating the feasibility of the HOPE method for accessing higher moments.
Authors
Sheng Pin Chang
(Institute of Physics National Yang Ming Chiao Tung University)
Prof.
William Detmold
(Center for Theoretical Physics - A Leinweber Institute, Massachusetts Institute of Technology)
Dr
Anthony Grebe
(Department of Physics and Maryland Center for Fundamental Physics, University of Maryland)
Mr
Matías Gutiérrez-Escobari
(Center for Theoretical Physics - A Leinweber Institute, Massachusetts Institute of Technology)
Dr
Issaku Kanamori
(RIKEN Center for Computational Science)
C.-J. David Lin
(Institute of Physics, National Yang Ming Chiao Tung University)
Dr
Robert Perry
(Center for Theoretical Physics - A Leinweber Institute, Massachusetts Institute of Technology,)
Dr
Yong Zhao
(Physics Division, Argonne National Laboratory)