微中子和重力波觀測

建國中學地球科學讀書會

Presenter: 12527 Brine

Original: 秦教授一男

Index

Elementary particles

The fundamental of this world

Fermions

Particles that follows Fermi–Dirac statistics

• have half-odd-integer spins

• Pauli exclusion principle

• associated with matter

• can be elementary or composite(baryons)

• quarks and leptons

Properties

• Principal quantum number (n)

• Azimuthal quantum number (ℓ)

• Magnetic quantum number (mℓ)

• Spin quantum number (ms)

• two identical fermions cannot occupy the same quantum state within a quantum system simultaneously

quantum numbers

Leptons

I don't know what to say here lol

• charged ones

• neutral ones

• interacts only via the weak interaction and gravity

LEPTONS

source: wikipedia

fundamental Interactions

Neutrino observation

Leeckroll: "How and why, that we need to know."

• they don't disappear easily

• there's a lot of them

• basically cannot be blocked

• they can't be detected easily

Pros & cons

• large discrepancy

• neutrino oscillation

Solar neutrino problem

• スーパーカミオカンデ

  • 30 / day

  • water

• IceCube

Observatories