Scientists create weird pumpkin-shaped nucleus that vanishes in nanoseconds - Livescience.com

Lutetium-149 undergoes a rare type of radioactive decay.

Physicists in Finland have created a pumpkin-shaped atomic nucleus that throws off protons in a rare kind of radioactive decay.  The nucleus, lutetium-149, has the shortest half-life of any of a gro… [+2328 chars]

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