Production and decay of a B-zero meson in the CDF detector at Fermi National Accelerator Laboratory (Fermilab) near Chicago. The computer display shows the detector in cross-section,outlined in white. An unseen proton & antiproton,accelerated to high energy in Fermilab's Tevatron collider,annihilate at centre. Among the particles created from their energy is the B-zero,which consists of a bottom antiquark bound with a down quark. The B-zero decays immediately,unseen,to a J/psi and a K-zero-star,also unseen,which in turn decay to two muons (green tracks),a kaon (red) and a pion (yellow). Other particles created in the proton- antiproton collision are shown in dark blue |