2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/190351We discuss neutral B_{s,d} meson mixing and b-hadron lifetimes from the perspective of recent lattice calculations. In particular, we consider matrix elements which can be combined with measured ΔM_{s,d} to constrain |V_{td}|, the lifetime ratios τ(Λ_b)/τ(B_d) and τ(B^-)/τ(B_d) and the lifetime difference, ΔΓ_s/Γ_s, in the neutral B_s meson system.12 pages, 3 figures. Contribution to the UK Phenomenology Workshop on Heavy Flavours and CP Violation, 17th - 22nd September 2000, Durham, EnglandHigh Energy Physics - PhenomenologyHigh Energy Physics - ExperimentHigh Energy Physics - Latticetext