Chapter 43, Problem 1Q

To determine

The reaction between two nucleons that could produce a ${\pi }^{-}$.

Answer to Problem 1Q

The reaction between two nucleons that could produce a ${\pi }^{-}$ is,

  $\text{p}+\text{n}\to \text{p}+\text{p}+{\pi }^{-}$

Explanation of Solution

Nucleons are the particles found in nucleus of an atom. Protons and the neutrons are the nucleons because they are in the nucleus of an atom. The proton is having positive charge and neutron does not have any charge. The proton and neutron are both baryon and fermions.

Write the expression for reaction between two nucleons.

    $\text{p}+\text{n}\to \text{p}+\text{p}+{\pi }^{-}$

Here, $\text{p}$ is protons and $\text{n}$ is the neutron.

Conclusion:

Therefore, the reaction between two nucleons that could produce a ${\pi }^{-}$ is $\text{p}+\text{n}\to \text{p}+\text{p}+{\pi }^{-}$.