I will describe recent progress in performing accurate calculations of the effects of
the strong force on particles containing bottom and charm quarks. Since quarks are never
seen in isolation, and cannot be studied directly, numerical simulations are key to
understanding the properties of these particles.
The results have direct
relevance to the worldwide experimental programme that is aiming to determine the
parameters of the Standard Model of particle physics precisely and thereby uncover
or constrain the possibilities for physics beyond the Standard Model.
These calculations represent a huge computational undertaking and have been
made possible by international collaboration and cooperation around national computing facilities.