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Quark Flavor Mixing: CKM Matrix & Weak Decay

Interactive 3D CKM-matrix simulator: fire weak decays of down-type quarks into up-type quarks with W boson emission, sampled from real |V_ij|² transition probabilities, and watch the running statistics converge on the Standard Model's quark-mixing matrix.

Quantum Physics3DAdvanced60 FPS📱 Mobile-adapted⇄ 2D version

The Standard Model's weak force doesn't just push particles around — it changes what they *are*. This simulator lets you trigger real weak-decay events in which a down-type quark (d, s or b) emits a W⁻ boson and converts into an up-type quark (u, c or t), with the outcome sampled from the actual squared magnitudes of the CKM quark-mixing matrix. Fire single decays or set a continuous rate, watch a running histogram converge on the predicted |V_ij|² branching probabilities, and toggle a 3D bar chart of the matrix itself to see why quarks overwhelmingly — but not exclusively — decay within their own generation.

⚙ Under the hood

Fire real weak-decay events in which a down-type quark emits a W⁻ boson and converts into an up-type quark, sampled from the Standard Model's CKM matrix, and watch the measured branching ratios converge on the predicted |V_ij|² probabilities.

particle-physicsstandard-modelckm-matrixweak-forcequarks

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install