Mar 6, 2021 · 15 I am currently trying to find out about what exactly Feynman diagrams are, and up until now I have mainly used the lecture notes 'Mathematical ideas and notions of quantum field theory' by …

Nov 7, 2025 · A Feynman diagram is called planar if the adjoint graph obtained by connecting all external lines to a single vertex is planar.

Mar 6, 2023 · Feynman diagram using TikZ-Feynman package Ask Question Asked 2 years, 9 months ago Modified 2 years, 9 months ago

Feb 5, 2023 · I have plotted the following with paint: I need to replace it by LaTex. I searched through this website I found some information about drawing Feynman diagram with LateX, but none of them …

Feb 16, 2025 · This is difficult to achieve with the spring layout that automatically places the nodes and edges and which is actually the feature of the tikz-feynman package. But you can do this using …

Sep 22, 2021 · The motivation of this convention in Feynman diagrams is that the positron is antimatter, whereas the electron neutrino is matter. By , an emitted positron is equivalent to an absorbed …

Mar 13, 2021 · Hence the Feynman diagram is simply the propagator i.e. $\mathcal {O} (\lambda^1)$ order. I have read that $\langle \phi (x_1) \phi (x_2) \rangle$, for $\phi^3$, has no diagram for …

Aug 30, 2020 · How would you explain the concept and applications of Feynman Diagrams to a high school kid?

Mar 5, 2024 · Is there a way to change the size and/or shape of a blob vertex? I guess a size change could be emulated by making all the arrows shorter, but i would like to know if there is an explicit way.

I am having some trouble understanding this Feynman diagram, it seems to indicate that the electron produces the positron, as the arrow of the positron is pointing from the electron. Additionally ...