Fundamentals of Particle Physics

The video tutorial covers the classification of particles into hadrons and leptons, explaining their subgroups and properties. It discusses the four fundamental forces in nature and their exchange particles. The tutorial also delves into quark combinations in various particles like neutrons, protons, pions, and kaons. Finally, it explains the conservation laws applicable in particle decay processes, emphasizing the importance of baryon number, lepton number, and charge conservation.

Which of the following is a subgroup of hadrons?

• Mesons

• Leptons

• Neutrinos

• Electrons

What is the exchange particle for the electromagnetic force?

• Gravitons

• Virtual photons

• W and Z bosons

• Gluons

How many quarks make up a neutron?

• Five

• Four

• Three

• Two

What is the charge of a proton?

• -1

• +1

• 0

• +2

Which quark combination forms a pi-zero meson?

• Up and anti-up

• Down and anti-down

• Strange and anti-strange

• Both A and B

What quark combination is found in a positive kaon?

• Strange and anti-up

• Up and anti-down

• Down and anti-strange

• Anti-strange and up

What particle is emitted during neutron decay?

• Neutrino

• Proton

• Photon

• Electron

Which conservation law is not applicable to weak interactions?

• Strangeness conservation

• Lepton number conservation

• Charge conservation

• Baryon number conservation

What is the lepton number of an electron?

• +1

• 0

• +2

• -1

Which force is responsible for holding quarks together in a proton?

• Weak force

• Gravitational force

• Electromagnetic force

• Strong nuclear force