The B¯B¯ strong interaction with chiral perturbation theory

We study the strong interaction potentials of B¯B¯ up to order O(ϵ²)with the heavy meson with the heavy meson chiral perturbation theory. Besides the leading contributions from the contact terms we also consider the one-loop corrections to the contact diagrams and the contributions from the 2ϕ-exchange diagrams. Hopefully, the analytical structures of our result will be helpful in the extrapolation of the relevant heavy meson interaction in the lattice QCD simulation. (author)