Sorry for the newbie question. Just slap me and direct me to the right post. I did some searches but couldn't find my answer. If a fundamental particle must exert one of the fundamental forces against another fundamental particle, are the appropriate gauges boson then created by the first particle, or do all gauge bosons exist "virtually" everywhere anyway and are just "turned on" or activated by the fundamental particle's need for the force? If the first particle's force "creates" the gauge boson, can such heavy particles be created from nothing because of their short life-span--which is why they're "virtual"? It seems like these questions are fundamental to modern physics, which is why suspect I'm going to receive some severe slapping. Thanks.