Subatomic particles Flashcards
1
Q
Charge of an upquark
A
+2/3
2
Q
Charge of a downquark
A
-1/3
3
Q
Quark composition for a proton
A
uud
4
Q
Quark composition of a neutron
A
ddu
5
Q
Quark composition of a Δ++
A
uuu
6
Q
Quark composition of a Δ-
A
ddd
7
Q
Quark composition of a π0
A
uū
8
Q
Quark composition of a π-
A
dū
9
Q
Quark composition of a π+
A
u(d)
10
Q
Quark composition of a π0
A
d(d)
11
Q
What’s the charge and lepton number of an Electron Neutrino
A
L: 1
Q: 0
12
Q
What’s the charge and lepton number of an Anti-electron Neutrino
A
L: -1
Q: 0
13
Q
What are the conditions for the Electromagnetic force
A
- Involves Photons
- No quark flavour change
14
Q
What are the conditions for the Strong force
A
- No Electron neutrinos
- No photons
- No quark flavour change
15
Q
What are the conditions for the Weak force
A
- Involves Electron Neutrinos
- Quark flavour change occurs
