B-reconstruction methods with geometric and kinematic constraints

Kinematic reconstruction methods are useful in recovering decay channels with attractive branching ratios, or interesting physics, but with “missing” particles ( γ , ν , π 0 , etc.). The modes are recovered by combining kinematic with geometric constraints. The “Sliding Vertex” method here presented is applied to B s 0 decays with one missing π 0 , having the potential of doubling the visible signal.