  Recent progress in open-heavy-flavor measurements and future experimental
upgrades are bringing heavy-flavor physics into the precision era, allowing for
strong quantitative constraints on the transport properties of heavy quarks in
the quark-gluon plasma. Starting from the LIDO transport model, which combines
a matrix-element based linearized-Boltzmann transport and diffusion-based
Langevin equation, we have made two essential improvements to increase both the
flexibility and physical accuracy of the model. First, we have absorbed the
pQCD scatterings with small momentum transfers to the medium into the diffusion
part of the LIDO model, and we have restricted the use of vacuum matrix
elements to large momentum transfer processes. This study allows us to
construct a model that smoothly interpolates between a pure pQCD based approach
and a radiation-improved Langevin equation by tuning a single scale parameter.
Second, the Monte-Carlo implementation of the Landau-Pomeranchuk-Migdal effect
of the original model has been improved to account for multiple scatterings of
gluons. The simulated radiative energy loss can be tuned to quantitatively
agree with semi-analytic theory calculations both for a static (finite /
infinite) medium and for a dynamic expanding medium. With such improvements,
the LIDO model will greatly facilitate the extraction of heavy-quark transport
coefficient from a systematic model-to-data comparison.
