Heavy and light meson wavefunctions

We present a short review on the properties of heavy and light mesons’light-cone wavefunctions(LCWFs),and their distribution amplitudes(DAs).The B meson LCWFs can be treated by taking the heavy quark limit(mb!1)and by using the heavy quark effective theory.Furthermore,we propose a simple model for the B meson wavefunctions with 3-particle Fock states’contributions,whose behaviors are controlled by two parameters K and d.Using such model,the form factors FB!p t;0;Tand FB!K t;0;Tin large recoil region are studied up to Oe1=m2bT within the kTfactorization approach.On the other hand,we adopt BrodskyHuang-Lepage(BHL)prescription for constructing the WFs of the lighter pseudoscalars as gc;D-meson,pion,kaon,ge0T and etc.Such BHL-like model can be conveniently extended to construct the LCWFs for light scalar or vector mesons.Within such model the longitudinal distributions of those WFs are basically determined by a parameter B,whose value can be determined via a global fit of experimental data.

We present a short review on the properties of heavy and light mesons＇ light-cone wavefunctions （LCWFs）, and their distribution amplitudes （DAs）. The B meson LCWFs can be treated by taking the heavy quark limit （rob →∞） and by using the heavy quark effective theory. Furthermore, we propose a simple model for the B meson wavefunctions with 3-particle Fock states＇ contributions, whose behaviors are controlled by two parameters .∧^- and δ. Using such model, the form factors F＋,0,T^B→π. and F＋,0,T^B→K in large recoil region are studied up to O（1/mb^2） within the kT factorization approach. On the other hand, we adopt Brodsky- Huang-Lepage （BHL） prescription for constructing the WFs of the lighter pseudoscalars as qc, D-meson, pion, kaon, η（′） and etc. Such BHL-like model can be conveniently extended to construct the LCWFs for light scalar or vector mesons. Within such model the longitudinal distributions of those WFs are basically determined by a parameter B, whose value can be determined via a global fit of experimental data.