Spacetime Quantum Mechanics and Yukawa Potential

The major understanding of strong force came from the revolutionary o Yukawa of japan [1]. Yukawa postulated that strong force are mediated by heavy particles called mesons. He guessed the short range Yukawa potential and calculated the mass of mesons. In this paper i will use Feynman's path integral approach to show that exchange of spin zero virtual particle produces an attractive force. Finally i will derive the Yukawa potential