Proca action
（重定向自Proca equation）
![](/Images/godic/202502/04/Feynmann_Diagram_Gluon_Radiation.svg4753.png")
In physics, specifically field theory and particle physics, the Proca action describes a massive spin-1 field of mass m in Minkowski spacetime. The corresponding equation is a relativistic wave equation called the Proca equation. The Proca action and equation are named after Romanian physicist Alexandru Proca.