Lattice results for low moments of light meson distribution amplitudes
Physical Review D—Particles, Fields, Gravitation, and Cosmology, 2011•APS
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 π and K and the (longitudinally polarized) vector
mesons ρ, K*, and ϕ. We obtain the desired quantities with good precision and are able to
discern the expected quark-mass dependence of SU (3)-flavor breaking effects. An
important ingredient of the calculation is the nonperturbative renormalization of lattice …
phenomenology programme, we calculate the first two moments of the light-cone distribution
amplitudes of the pseudoscalar mesons π and K and the (longitudinally polarized) vector
mesons ρ, K*, and ϕ. We obtain the desired quantities with good precision and are able to
discern the expected quark-mass dependence of SU (3)-flavor breaking effects. An
important ingredient of the calculation is the nonperturbative renormalization of lattice …
As part of the UKQCD and RBC collaborations’ domain-wall fermion phenomenology programme, we calculate the first two moments of the light-cone distribution amplitudes of the pseudoscalar mesons and and the (longitudinally polarized) vector mesons , , and . We obtain the desired quantities with good precision and are able to discern the expected quark-mass dependence of SU(3)-flavor breaking effects. An important ingredient of the calculation is the nonperturbative renormalization of lattice operators using a regularization-independent momentum scheme.
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