Resonance particles

Alvarez constructed huge bubble chambers to detect ultra-short-lived particles known as resonance particles, lasting 10^-24 seconds. He was able to deduce their existence from their breakdown products, earning a Nobel Prize for his work.
 Luis Walter Alvarez United States 1960 Resonance particles

Alvarez constructed huge bubble chambers to detect ultra-short-lived particles known as resonance particles, lasting 10^-24 seconds. He was able to deduce their existence from their breakdown products, earning a Nobel Prize for his work.