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👻 Neutrino Oscillation: Particles That Change Identity Mid-Flight

Discover how neutrinos created as one flavor can be detected as another after traveling through space, a quantum effect that proved these ghostly particles have mass, contrary to the original Standard Model.

Physics & Mechanics3DModerate60 FPS💨 Air & Wind

The simulation visualizes a neutrino beam traveling from a source to a detector, showing how the probability of measuring each flavor oscillates smoothly as a function of distance traveled, based on the two-flavor oscillation formula.

🔬 What It Demonstrates

🎮 How to Use

Choose a starting flavor, drag the mixing angle and delta-m-squared sliders to change the oscillation strength and wavelength, and press play to watch the flavor probabilities rise and fall as the neutrino propagates from source to detector.

💡 Did You Know?

Trillions of solar neutrinos pass harmlessly through your body every second, and thanks to oscillation, roughly two-thirds of the electron-neutrinos the Sun produces have already changed flavor by the time they reach Earth, which is exactly why early solar neutrino detectors seemed to be missing so many of them.

⚙ Under the hood

neutrino oscillationparticle physicsquantum superpositionstandard modelphysicsmass eigenstates

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