The exchange particles for the weak force are very massive (about 100 times as massive as a proton). This would lead one to expect that the weak force would
A) act over a very long range.
B) act over a very short range.
C) only act on very massive particles.
D) be transmitted at the speed of light.

Question

Quizplus · Accepted Answer

The mass of the exchange particles (W and Z bosons) for the weak force implies that the force has a very short range, as the force's range is inversely proportional to the mass of its exchange particles according to quantum field theory.

The Exchange Particles for the Weak Force Are Very Massive