[ τ(Λb)/ τ(B0) = 0.976±0.012±0.006 ] [ τ((Λb) = 1.482±0.018±0.012 ps ] The LHCb Collaboration has just published an important precise measurement of the Λb beauty baryon lifetime. The Λb is a particle composed of the up (u), down (d) and beauty (b) quarks, so it can be understood as being like a neutron (composed…