The Nobel Prize in Physics 1980

James Watson Cronin

Photo from the Nobel Foundation archive.

Prize share: 1/2

Val Logsdon Fitch

Photo from the Nobel Foundation archive.

Prize share: 1/2

The Nobel Prize in Physics 1980 was awarded jointly to James Watson Cronin and Val Logsdon Fitch "for the discovery of violations of fundamental symmetry principles in the decay of neutral K-mesons."

To cite this section
MLA style: The Nobel Prize in Physics 1980. NobelPrize.org. Nobel Media AB 2020. Sun. 29 Mar 2020. <https://www.nobelprize.org/prizes/physics/1980/summary/>

Back to top Back To Top Takes users back to the top of the page

Learn more

Nobel Prizes 2019

Fifteen laureates were awarded in 2019, for achievements that have conferred the greatest benefit to humankind.

Their work and discoveries range from how cells adapt to changes in levels of oxygen to our ability to fight global poverty.

See them all presented here.
2019 Nobel Laureates

Explore prizes and laureates

Look for popular awards and laureates in different fields, and discover the history of the Nobel Prize.