# Which force mediates a reaction in which a pion and a deuteron form two protons?

• alby
In summary, the strong interaction is the fundamental force that mediates the reaction \pi^+ + D \rightarrow p + p. This is because both the pion and deuteron are made up of quarks, and the positive pion interacts with the neutron in the deuteron to form two protons. Color factors should also be included in the analysis. The paper provided offers a detailed explanation of the pion exchange mechanism and its role in this reaction.

## Which fundamental interaction is responsible?

• ### Electromagnetic

• Total voters
3
• Poll closed .
alby
Which fundamental force mediates the reaction $\pi^+ + D \rightarrow p + p$?

My initial assumption was the strong force because states only feature quarks (i.e. there are no leptons) but looking at it again I'm not 100% sure.

Do I need to include colour factors? Could it be a neutral current Z without lepton pair production? Or electromagnetic, photon absorbed by proton?

am sure that the strong interaction mediates the reaction in which a pion and a deuteron form two protons.and yes u should include a color factor.the deuteron is made of a proton and neutron.the positive pion interacts with the neutron and leads to the formation of a proton .is a simple way a positve pion is made of up and anti down,and the neutron is made of ddu.so the down and anti down annihilate which leaves uud which is a proton.
u can also read this paper made specifically for pre-university level to understand the pion exchange mechanism which include color charge and gluones.http://teachers.web.cern.ch/teachers/archiv/HST2002/feynman/Pion%20exchange.pdf"

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## 1. What is a pion and a deuteron?

A pion is a subatomic particle composed of a quark and an antiquark, while a deuteron is a nucleus of an atom containing one proton and one neutron.

## 2. What is a reaction involving a pion and a deuteron?

In this reaction, a pion and a deuteron collide and combine to form two protons.

## 3. What is the force that mediates this reaction?

The force that mediates this reaction is the strong nuclear force.

## 4. How does the strong nuclear force mediate this reaction?

The strong nuclear force is responsible for binding protons and neutrons together in the nucleus. In this reaction, it pulls the pion and deuteron together, allowing them to combine and form two protons.

## 5. Why is this reaction significant in particle physics?

This reaction is significant because it demonstrates the strong nuclear force at work and provides insight into the fundamental interactions between subatomic particles. It also has implications for nuclear fusion and the formation of heavier elements in the universe.

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