Kaons, Mesons & Pions Flashcards Preview

P 1,2 > Kaons, Mesons & Pions > Flashcards

Flashcards in Kaons, Mesons & Pions Deck (15):
1

What are cosmic rays?

High energy particles that travel through space from the stars.

2

What happens when cosmic rays enter the Earth's atmosphere?

They create short lived particles, anti particles and photons.

3

What are the three particles that wee discovered?

• Muon
• Pion
• Kaon

4

What is a muon?

Heavy Electron/Muon
• Negatively charged particle.
• Rest mass 200 times the rest mass of the electron

5

What is the charge of a pion?

Pion Meson
• Positively Charged
• Negatively Charged
• Neutral

6

What is the mass of a pion?

Pion Meson:
• Greater than a muon, but less than a proton.
• They are the lightest mesons

7

What are the charges of a kaon?

K Meson
• Positive
• Negative
• Neutral

8

What is the rest mass of a kaon?

• Greater than a pion, but less than a proton.

9

What is the mass of a Muon/Heavy Electron?

• 200 times that of an electron.
• Less than a pion

10

What are some features of kaons?

• Not very stable, they are more unstable than pions.
• Have a very short lifetime, and decay into pions.

11

What do kaons decay into?

• Pions
or
• Muon, and an antineutrino
/
• antimuon and a neutrino

12

What is the decay of charged pions?

• Muon and an antineutrino
or
• antimuon and a neutrino

13

What is the decay of a neutral meson?

High energy photons

14

What is the decay of a muon?

• Electron and an antineutrino

15

What is the decay of an antimuon?

• Positron and neutrino