B-meson coupling with relativistic heavy quarks
The B*Bpi coupling is a fundamental parameter in the heavy meson chiral Lagrangian. This is an effective theory of QCD describing the interaction between heavy-light mesons and pions. The effective coupling furthermore constrains the chiral behavior of the B-meson decay constant, bag-parameter and the B->(pi,l,nu) form factor in the soft pion limit. Thus it is crucial in the process of estimating these physical quantities using lattice QCD methods.
Our lattice calculations treat the heavy quark with the so-called Relativistic Heavy Quark (RHQ) action and the light quarks in the Domain Wall Fermion formalism with its improved chiral properties.
Physical Systems and Engineering simulation: QCD
Visualisation and data handling software: Gnuplot