An antiproton (same mass as the proton, charge -e) is at the observation location. What is the force on the antiproton, due to the π-?
To calculate the force on the antiproton due to the π-, you need to know the charge of the π- and the distance between the antiproton and the π-.
The force between two charged particles can be calculated using Coulomb's law, which states that the force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.
The formula for Coulomb's law is:
F = (k * |q1 * q2|) / r^2
Where:
F is the force between the two charged particles.
k is the electrostatic constant (9 × 10^9 N * m^2/C^2).
q1 and q2 are the charges of the two particles.
r is the distance between the particles.
In this case, the charge of the antiproton is -e and the charge of the π- is also -e. The distance between them would need to be specified in order to calculate the force accurately.
Assuming you have the distance between the antiproton and the π-, you can plug in the values into the Coulomb's law formula to calculate the force on the antiproton due to the π-.