Names, dates, brief theory if anyone fancies showing off.

Libraries are shut at the minute and I don't have any up to date books.

3 quarks is stupid, 2 isn't.

Why can't protons have 2 quarks +2/3 and +1/3.?
(I know thats a quark and an antiquark)

Have 3 quarks been observed(indirectly) from the destruction of a proton, or is there a high speed beam of electrons that smash into numerous protons.

we say that there are three quarks in a nucleon because of the number of jets that come out of proton smashing (three), among other reasons. you can indeed have a particle with only 2 quarks, like you suggest. the pion is just such a particle.

names dates more specifics and stuff will have to wait until break is over and i am back at school.

Baryons have three quarks.

Mesons have two quarks.

- Warren

happy 1 000th post, chroot