Explanation of how the Higgs field gives mass to particles. The voiceover explains what is being seen in the animation. The clip shows four particles, from top to bottom: an electron (green), muon (brown), W boson (red) and top quark (orange). The sliders to their right show how much energy (E) and mass (M) they have. The more mass they have, the less energy. The particles are then shown moving into the Higgs field (blue), which is full of force-carrying Higgs bosons (black). The electron barely interacts with the Higgs field at all, and moves quickly through it. The muon interacts slightly more, the W particle interacts significantly, and is slowed down, while the massive top quark interacts with many Higgs bosons, which accumulate on it and slow it down, converting much of its kinetic energy into mass. The hunt for Higgs bosons is the primary aim of several experiments at the Large Hadron Collider at CERN.