2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/128293We present recent measurements by the CDF and D0 Collaborations at the Tevatron Collider on the masses and lifetimes of B hadrons. The results are compared to predictions based on Heavy Quark Effective Theory, lattice gauge theory, and quark models.4 pages, 3 figures; added referenceHigh Energy Physics - Experimenttext