Sketch Feynman vertex for the annihilation of a b quark and u¯.

Short Answer

Expert verified

The Feynman diagram is shown in the figure as follows:

Step by step solution

01

Given data

The u¯ has charge -23 and b has charge-13 .

02

Concept of Feynman diagram 

A Feynman diagram describes the interactions in quantum field theory. Solid lines and curved lines are used to represent different types of particle interactions.

03

Step 3:Sketch Feynman vertex

The Feynman diagram is shown in figure 1.


Figure 1

Because the type of quark changed, it is a weak interaction.

Because u¯ has charge -23 and b has charge-13 , they will exchange a W-boson.

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