Definition of pi meson in English:
Another term for pion.
- In 1947, English physicist Cecil Powell observed Yukawa's mesons, now called pi-mesons or pions, in the upper atmosphere, where they were produced by cosmic ray collisions.
- If, for example, the interaction between two protons in a nucleus is studied, quite good results can be obtained by describing it as an exchange of pi-mesons.
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Australia
Most popular in India
Most popular in Pakistan