Bottom ScienceParticle Physics
Introduction
- Introduction to Particle Physics
- Need of High Energy Physics
- Four Fundamental Forces
- Units in High Energy Physics
- Natural System of Units
- Particle Accelerators & Types
- 1st, 2nd, and 3rd Generation Particles
- Center of Mass Frame vs. Laboratory Frame
- Gravitational vs Nuclear Binding Energy (Mass Defect)
Invariance Principles & Conservation Laws
- Symmetries & Conservation Laws
- Continuous Transformations
- Discrete Transformation
- Parity Transformation
- Wu’s Experiment & Parity Violation
- Feynman Rules for Quantum Electrodynamics (QED)
- Electron-Muon Scattering Amplitude (M) Calculation
- Electron-Positron Scattering Amplitude (M) Calculation
- SU(1), SU(2), SU(3) – Unitary Groups (QCD)
- More topics coming soon…
Problems
Compton Wavelength in Natural Units | Particle Physics | Problems
Problem – Expression for Compton Wavelength of a Particle of mass m in Natural Units
Solution
We know that,
from de broglie wavelength formula,
A particle with mass ‘m’ have a wavelength defined as,
$\lambda$ = $\frac{h}{mc}$
or
$\lambda$ = $\frac{\hbar}{mc}*2\pi$
for natural system,
$\hbar$ = c = 1
so,
$\lambda$ = $\frac{2\pi}{m}GeV^{-1}$
