# Feynman Diagrams for Decay of Δ++ & Ξ- Particles

• jaoc
In summary, the conversation discusses two decays: Δ ++ → p + π0 and Ξ - → Λ0 + π-. The first decay involves a Δ ++ particle decaying into a proton and a π0 particle, while the second decay involves a Ξ - particle decaying into a Λ0 particle and a π- particle. The conversation also mentions the importance of analyzing the quark content of these particles and the possibility of drawing Feynman diagrams to represent these decays.
jaoc
Homework Statement
Would appreciate help with Feynman Diagrams for these two decays:
1.- DELTA ++ into proton + PI 0
Δ ++ → p + π0
2.- XSI - into SIGMA 0 + PI minus
Ξ - → Λ0 + π-
Relevant Equations
Δ ++ → p + π0
Ξ - → Λ0 + π-
Δ ++ → p + π0
Ξ - → Λ0 + π-

First you need to show some effort, first of all, have you done a quick analysis to see if these decays are possible?

jaoc said:
Homework Statement:: Would appreciate help with Feynman Diagrams for these two decays:
1.- DELTA ++ into proton + PI 0
Δ ++ → p + π0
2.- XSI - into SIGMA 0 + PI minus
Ξ - → Λ0 + π-
Relevant Equations:: Δ ++ → p + π0
Ξ - → Λ0 + π-

Δ ++ → p + π0
Ξ - → Λ0 + π-

For the process 1, I can get Feynman diagram but with a pi_+, not with a pi_0

For the process 2, I am not sure abt file attached (right figure)

Thanks again

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## 1. What are Feynman diagrams?

Feynman diagrams are graphical representations used to describe the interactions between particles in quantum field theory. They were developed by physicist Richard Feynman and are used to calculate the probability of particle interactions.

## 2. What is the significance of Feynman diagrams in particle physics?

Feynman diagrams are important in particle physics because they provide a visual representation of complex mathematical equations that describe the behavior of particles. They allow scientists to make predictions about the outcomes of particle interactions and have been crucial in the development of the Standard Model of particle physics.

## 3. How do Feynman diagrams explain the decay of Δ++ and Ξ- particles?

Feynman diagrams for the decay of Δ++ and Ξ- particles show the exchange of particles between the decaying particle and its decay products. This exchange is governed by the laws of quantum mechanics and the conservation of energy and momentum.

## 4. What are the main components of a Feynman diagram?

A Feynman diagram consists of lines representing particles and vertices representing interactions between particles. The direction of the lines indicates the flow of time, and the arrows on the lines represent the direction of the particle's momentum. Virtual particles, which do not exist in reality but are necessary for calculations, are also represented in Feynman diagrams.

## 5. Are Feynman diagrams accurate representations of particle interactions?

Feynman diagrams are a simplified representation of particle interactions and do not accurately depict the true nature of these interactions. They are a useful tool for making predictions and calculations, but they should not be taken as a literal description of the physical process.

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