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Flashcards in Particals Deck (15):
1

What are the conservation rules?

1. Charge is conserved
2. Baryon number is conserved
3. Lepton number is conserved
4. Strangeness is conserved in strong interactions but changes in weak interactions

2

What is the particle that is exchanged during electromagnetic interactions?

A virtual photon is exchanged (but it cannot be detected)

3

What particle is exchanged during a weak interaction?

W+ or W- boson (+/- determined by the particle decaying)

4

What is the quark composition of a baryon?

3 quarks

5

What is the quark composition of a meson?

Quark, anti-quark pair

6

What is the quark composition of a proton?

Up, up, down

7

What is the quark composition of a neutron?

Up, down, down

8

Electrons, muons and neutrinos are what type of particle?

Leptons

9

What type of particle are protons and neutrons?

Baryons

10

Pions and kaons are what type of particles?

Mesons

11

What particles are force carriers?

Photons and weakons (w+/-)

12

Describe the process of pair production.

When a high energy photon collides with something it can cause pair production and will create a particle and an antiparticle.

13

What property defines a hadron?

Particles that experience the strong nuclear force.

14

What is the similarities and differences between a particle and it's anti-particle?

They have the same rest mass but have opposite charge.

15

What is an isotope?

An isotope of an element has the same number of protons but a different number of nucleons/neutrons.