The hierarchy problem concerns the “unnaturalness” of the parameters of this theory. For 10 points each:
[10m] Name this theory whose gauge group is SU(3) (“S-U-3”) product SU(2) (“S-U-2”) product U(1) (“U-1”). This theory has 19 free parameters, including several mixing angles and a scalar particle with a mass of 125 gigaelectronvolts.
ANSWER: the Standard Model of particle physics
[10h] Since the Standard Model only holds for energy scales below a UV cutoff, it is one of these theories. In these approximative theories, degrees of freedom that aren’t relevant below some energy scale are integrated out.
ANSWER: effective field theories [or EFTs; prompt on quantum field theories or QFTs]
[10e] Another effective field theory is this physicist’s theory of beta decay involving a 4-particle interaction. This physicist names particles with half-integer spin, contrasted with bosons.
ANSWER: Enrico Fermi [accept fermions]
<GC, Physics>