Particle Interactions, proton + antiproton

In summary, The question is asking if it is possible to demonstrate the interaction of a proton and antiproton producing 3 gamma particles using Feynman diagrams. However, this would require the quarks to annihilate with their anti-matter counterparts, producing gluons instead of photons. While gluons can decay into particles and potentially lead to photon production, it is not a direct demonstration of the stated interaction.
  • #1
leonmate
84
1
Quite a simple query really,

The question wants me to draw a Feynman diagram for a number of particle interactions, some are not possible, some are.

This interaction:

proton + antiproton ----> 3 gamma

This would require each quark (uud) to annihilate with its anti matter counter part. This is fine, but this produces gluons not photons. I know these gluons can decay into particles, and they could then maybe annihilate into photons.

Is this interaction, as it's stated, possible to be demonstrated using Feynman diagrams?
 
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  • #2
leonmate said:
This is fine, but this produces gluons not photons.

Not necessarily, quarks have electromagnetic charge and therefore also couple to photons.
 

Related to Particle Interactions, proton + antiproton

What is a proton and antiproton?

A proton is a positively charged subatomic particle found in the nucleus of an atom. An antiproton is the antiparticle of a proton, meaning it has the same mass as a proton but has a negative charge.

How do protons and antiprotons interact?

When a proton and antiproton come into contact, they undergo a process called annihilation where they are both converted into energy. This is due to the fact that they have opposite charges, causing them to attract and then destroy each other.

What is the significance of studying particle interactions between protons and antiprotons?

Studying the interactions between protons and antiprotons allows scientists to understand the fundamental forces that govern the universe. It also has practical applications in fields such as nuclear energy and medical imaging.

How do scientists create and control antiprotons?

Antiprotons are not naturally occurring and must be created in a laboratory through a process called proton-antiproton pair production. Scientists can then use magnetic fields to control the movement and interactions of antiprotons.

What are some current research projects involving proton and antiproton interactions?

Some current research projects include studying the properties of antiprotons to search for new physics beyond the Standard Model, developing more efficient methods for creating and controlling antiprotons, and investigating the use of antiprotons in cancer therapy.

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