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 Prize Outreach AB 2023. Fri. 29 Sep 2023. <https://www.nobelprize.org/prizes/physics/1980/summary/>

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

Coming up

2023 Nobel Prize announcements

This year’s Nobel Prize announcements will take place 2–9 October. All announcements will be streamed live here on nobelprize.org.

See the full schedule
Announcement dates

Explore prizes and laureates

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