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abstraction > theory related concept > problem > hierarchy problem |
hierarchy problem comparison table |
Subject | is an instance of | is a kind of | has definition |
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problem | theory related concept | ||
hierarchy problem | problem | In the context of grand unified theories, the hierarchy problem is our inability to understand theoretically why the energy scale at which the unification becomes apparent, about 1016 GeV (billion electron volts), is so much higher than other energy scales of relevance to particle physics, such as the mass/energy of a proton, which is only 1 GeV. |
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