At what range does the strong nuclear force become repulsive?
~0.5 fm
5 of 37
At what range does the strong nuclear force become ineffective?
~3 fm
6 of 37
What is the equation for the energy of a photon?
E = hf
7 of 37
What is the equation for the frequency of light?
f =
8 of 37
What is the relative charge of a positron?
+1
9 of 37
What is the relative charge on an anti-proton?
-1
10 of 37
What is the charge on an electron neutrino?
0, as is the same with all neutrinos.
11 of 37
What is it called when a photon has too much energy and produces a electron-positron pair?
Pair production.
12 of 37
What is the equation for the minimum energy needed for pair production?
E = 2E
13 of 37
What will happen if a electron and positron interact?
Annihilation, the mass of both particles will be converted into energy in the form of two gamma ray photons.
14 of 37
What is the equation for the minimum energy of a photon produced via annihilation?
E = E
15 of 37
What is the name of the group of sub-atomic particles that are affected by the strong nuclear force?
Hadrons.
16 of 37
Leptons are all examples of what?
Fundamental particles.
17 of 37
Hadrons are all made up of?
Quarks
18 of 37
Baryons are made upof how many quarks?
3
19 of 37
Mesons are made up of how many quarks?
2
20 of 37
What is the baryon number of a baryon, anti-baryon and non-baryon?
+1, -1, and 0 respectively.
21 of 37
What are the four fundamental forces?
The strong nuclear force, the weak nuclear force, electromagnetic, and gravitational.
22 of 37
Which fundamental force causes beta decay?
The weak nuclear force.
23 of 37
Why can you not get anti-mesons?
Mesons are all made of a quark and a anti-quark, you cannot have a meson made of two quarks, or two anti-quarks.
24 of 37
Which type of meson contains strange quarks?
Kaons.
25 of 37
What is the relative charge of a muon?
-1
26 of 37
Protons are made up of which three quarks?
uud
27 of 37
What is the charge, baryon number, and strangeness on a strange quark?
-1/3, 1/3, and -1 respectively.
28 of 37
What is the strangeness of an up quark?
0
29 of 37
Describe Quark Confinement
The fact that it is not possible to get a quark on its own is due to how if you were able to provide enough energy to remove a quark from a proton then the energy would simply turn into mass, creating a pair of quarks. This is called quark confinem
30 of 37
If you were to change an up quark to a down quark it could be described as changing the quarks _________
Character. For example in Beta-Minus decay
31 of 37
Which properties are conserved in all particle interactions?
Charge, and Baryon Number?
32 of 37
Strangeness is only conserved in which type of interaction?
Strong Interactions.
33 of 37
What is the exchange particle for strong interactions?
The gluon
34 of 37
What is the exchange particle for electromagnetic interactions?
The virtual photon
35 of 37
What are the exchange particles for weak interactions?
W+, and W- bosons
36 of 37
In a feynman diagram, the exchange particles are represented by what?
Wiggly lines (technical term)
37 of 37
Other cards in this set
Card 2
Front
What is the mass of an electron?
Back
9.11x10^-31 kg
Card 3
Front
What is the charge on an electron?
Back
Card 4
Front
What is the equation for specific charge?
Back
Card 5
Front
At what range does the strong nuclear force become repulsive?
Comments
No comments have yet been made