Packet O: Bonus 18
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> | Packet O - Editors 1
| Heard | PPB | E % | M % | H % |
|---|---|---|---|---|
| 11 | 13.64 | 100% | 36% | 0% |
Conversion
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total | Parts |
|---|---|---|---|---|---|---|
| Ohio State A | Michigan A | 10 | 0 | 10 | 20 | ME |
Summary
| Tournament | Edition | Match | Heard | PPB | E % | M % | H % |
|---|---|---|---|---|---|---|---|
| Canada | Main Site | ✓ | 2 | 10.00 | 100% | 0% | 0% |
| Great Lakes | Main Site | ✓ | 1 | 20.00 | 100% | 100% | 0% |
| Lower Mid-Atlantic | Main Site | ✓ | 1 | 10.00 | 100% | 0% | 0% |
| Midwest | Main Site | ✓ | 2 | 15.00 | 100% | 50% | 0% |
| Northeast | Main Site | ✓ | 1 | 20.00 | 100% | 100% | 0% |
| Overflow | Main Site | ✓ | 1 | 10.00 | 100% | 0% | 0% |
| UK | Main Site | ✓ | 2 | 15.00 | 100% | 50% | 0% |
| Upper Mid-Atlantic | Main Site | ✓ | 1 | 10.00 | 100% | 0% | 0% |