To verify whether or not some grand unified theories are correct, physicists are searching for:
A) the Big Rip
B) mini-black holes
C) antimatter
D) protons that decay
E) dark matter that decays

Question

Quizplus · Accepted Answer

The search for proton decay is one of the main ways physicists are testing grand unified theories. These theories predict that protons, one of the building blocks of atoms, should eventually decay into lighter particles. If the decay of protons is detected, it would provide evidence in favor of grand unified theories.

To Verify Whether or Not Some Grand Unified Theories Are