Particles

Question 1

What are made of Quarks?

Answer 1

Hadrons

Question 2

What are the two types of Hadrons?

Answer 2

Mesons and Baryons

Question 3

What are Mesons?

Answer 3

Kaons ans Pions

Question 4

What do Kaons decay into?

Answer 4

Pions!

Question 5

What are Baryons?

Answer 5

Protons and Neutrons

Question 6

What interaction are Quarks in?

Answer 6

Strong Interaction

Question 7

What interaction do Leptons feel?

Answer 7

Weak interaction because it is not made of Quarks

Question 8

What particles come under Leptons?

Answer 8

• Electron
• Neutron
• Muon

Question 9

What are the baryon numbers of:

(1) Quark
(2) Antiquark
(3) Mesons
(4) Baryons
(5) Antibaryons

Answer 9

Quark : 1/3
Antiquark : -1/3
Mesons : 0
Baryons : 1
Antibaryons : -1

Question 10

List the Quarks

Answer 10

Up: U and Ū

Down: d and d-

Strange: S and Ś

Question 11

List the Four Leptons

Answer 11

Electron (e- and e+)
Electron Neutrino (Ve and Ve-)
Muon (u and ū)
Muon Neutrino (Vu and Vu-)

Question 12

Name the three Gauge Bosons

Answer 12

Photon
Gluon
W Boson

Question 13

How many Quarks are Baryons composed of?

Answer 13

Three Quarks

Question 14

What Quark pair are Mesons composed of?

Answer 14

A Quark-Antiquark pair; it is unstable

Question 15

Name the Quark compositions of:
Pi+
Pi-
K+
K-
K°
Pi° (3 sets)

Answer 15

Pi+ : Up, Antidown, Antistrange
Pi- : AntiUp, Down
K+ : Up, Antistrange
K- : AntiUp, Strange
K° : Down, Antistrange; Antidown, Strange
Pi° (3 sets) : Up, AntiUp / Down, Antidown / Strange, Antistrange

Question 16

Name what happens to strangeness in Weak interaction and Strong interaction

Answer 16

Weak: Strangeness changes

Strong: Strangeness conserved