1.6 Strange Particles
Discovery of Kaon, “strangeness”, and its “conservation law”
![notes on 1.6 Strange Particles [part 1]](https://physics.run/wp-content/uploads/2023/01/WCM0058.png)
![notes on 1.6 Strange Particles [part2]](https://physics.run/wp-content/uploads/2023/01/WCM0059.png)
![notes on 1.6 Strange Particles [part 3]](https://physics.run/wp-content/uploads/2023/01/WCM0060.png)
1.6 Strange Particles
Discovery of Kaon, “strangeness”, and its “conservation law”
![notes on 1.6 Strange Particles [part 1]](https://physics.run/wp-content/uploads/2023/01/WCM0058.png)
![notes on 1.6 Strange Particles [part2]](https://physics.run/wp-content/uploads/2023/01/WCM0059.png)
![notes on 1.6 Strange Particles [part 3]](https://physics.run/wp-content/uploads/2023/01/WCM0060.png)
1.5 Neutrinos
The indeterministic electron energy in beta decay raised a requirement of new particle produced in the reaction, recalling Powell’s emulsion picture indicates this new particle should be electrically neutral, eventually led to the family of leptons.
![notes on 1.5 Neutrinos [part1]](https://physics.run/wp-content/uploads/2023/01/WCM0053.png)
![notes on 1.5 Neutrinos [part2]](https://physics.run/wp-content/uploads/2023/01/WCM0054.png)
![notes on 1.5 Neutrinos [part3]](https://physics.run/wp-content/uploads/2023/01/WCM0055.png)
![notes on 1.5 Neutrinos [part4]](https://physics.run/wp-content/uploads/2023/01/WCM0056.png)
![notes on 1.5 Neutrinos [part5]](https://physics.run/wp-content/uploads/2023/01/WCM0057.png)
1.4 Antiparticle
From Dirac’s discovery of negative energy solution to a resolution of a “infinite sea of electrons”, till introduction of antiparticle by Feynman and Stuckelberg
![notes on 1.4 Antiparticle [part1]](https://physics.run/wp-content/uploads/2023/01/WCM0051.png)
![notes on 1.4 Antiparticle [part2]](https://physics.run/wp-content/uploads/2023/01/WCM0052.png)
1.3 Meson
this section introduce Yukawa’s original theory about meson
![notes on 1.3 Meson [part1]](https://physics.run/wp-content/uploads/2023/01/WCM0049.png)
![notes on 1.3 Meson [part2]](https://physics.run/wp-content/uploads/2023/01/WCM0050.png)
1.2 Photon
solution of Compton scattering may also serve as an exercise of relativity


1.1 the Electrical Era
from J. J. Thomson’s discovery of electron to Bohr’s model of hydrogen

