Physics P1 - Quarks & antiquarks

What are quarks?

The fundamental particles that make up hadrons.

What are the 3 types of quarks?

Up, down, strange.

What is the charge of each quark?

Up: +2/3 e
Down: -1/3 e
Strange: -1/3 e

What is the baryon number for each quark?

All are +1/3.

What is the strangeness for each quark?

Up: 0
Down: 0
Strange: -1

What do quarks combine into?

Mesons and baryons.

What is the quark combination for a neutral pion?

up, anti up or down, anti down

What is the quark combination for a positive pion?

up, anti down

What is the quark combination for a negative pion?

down, anti up

What is the quark combination for a neutral kaon?

down, anti-strange or anti down, strange

What is the quark combination for a positive kaon?

Up, anti strange

What is the quark combination for a negative kaon?

Anti up, strange