Question

Particle physics

Answer 1

Why is there a large variation in kinetic energies of beta particles emitted in a Beta decay?
but there is very less variation in KE of alpha particles in aplha decay?

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Answer 2

In beta decay a neutrino is also emitted. Therefore K.E. is shared between an electron and neutrino. But in alpha decay, the only particle which is emitted is the alpha particle.