6. Quarks and Antiquarks Flashcards
1
Q
What are quarks?
A
Fundamental particles
2
Q
Name 3 quarks
A
- Up
- Down
- Strange
3
Q
What quarks are needed to make protons and neutrons?
A
- Up
2. Down
4
Q
What are antiquarks?
A
They have the opposite properties to the quarks
5
Q
How many quarks are needed to make the baryons?
A
3
6
Q
What is the quark composition of a meson?
A
A quark and an anti-quark
7
Q
What is quark confinement?
A
The idea that it is not possible to get a quark by itself
8
Q
What interaction can turn a d quark to a u quark?
A
Weak
9
Q
What is it called when a quark changes into another quark?
A
Changing a quark’s character
10
Q
What is released in beta-plus decay?
A
A positron (beta-plus particle)
11
Q
What happens in beta-plus decay?
A
A proton changes to a neutron so u quark changes to d quark
