On page 92 (Figure 58) Feynman states:(adsbygoogle = window.adsbygoogle || []).push({});

"The amplitude for a coupling is a number that I will call j; it is about

negative .1 for the electron (this number is sometimes called the "charge").

Charge?? I don't get it.

Would appreciate an explanation?

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# QED Feynman (coupling number called j)

Loading...

Similar Threads - Feynman coupling number | Date |
---|---|

I Virtual particles in Feynman diagrams | Friday at 8:55 AM |

I Calculating the fine structure constant in Feynman diagrams | Friday at 8:47 AM |

I Why is there an arrow mediating a process in a Feynman diagram? | Thursday at 2:14 PM |

I Feynman Diagram-Momentum conservation in primitive vertex | Thursday at 2:06 PM |

A Coupling constants with fractional dimensions | Jan 17, 2018 |

**Physics Forums - The Fusion of Science and Community**