Ask ScienceEnglish • 4 days ago

In particle decay, is there a difference when they say "average lifetime" vs "half life"? Also: in the Large Hadron Collider, how long does a particle collision event (or experiment) last?

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In particle decay, is there a difference when they say "average lifetime" vs "half life"? Also: in the Large Hadron Collider, how long does a particle collision event (or experiment) last?

Ask ScienceEnglish • 4 days ago

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4 days ago
Half-life is time for half the material to decay. This is repeated at every step, so to reach 1/8 of the original amount takes 3 times the half-life.

https://en.m.wikipedia.org/wiki/Half-life

Particle decay tends to be Mean Lifetime. https://en.m.wikipedia.org/wiki/Particle_decay

High energy things decay really fast.

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