Skip to main content
6 events
when toggle format what by license comment
Jul 20, 2015 at 13:11 history edited Name YYY CC BY-SA 3.0
added 20 characters in body
Jul 19, 2015 at 13:15 comment added ACuriousMind "For example, all gauge symmetries must be unbroken due to unitarity of theory." To avoid confusing with the SSB by of $\mathrm{SU}(2)$-gauge symmetry by the Higgs, it should be stressed that this is at the level of the non-perturbative Lagrangian.
Jul 19, 2015 at 11:17 comment added romanovzky I just want to point out that your explanation of why the SM is anomaly free is not correct and based on speculation. The SM gauge group is also a subgroup of SU(5) and E6, for example, which do not entail only anomaly free theories. The SO(10) embedding is incomplete -- SM rank is 4, SO(10) is 5, SM has 12 gauge bosons, SO(10) has 20, SM matter does not fill entire SO(10) irreps, etc). SO(10) GUT cannot be used to justify SM anomaly free as it is still a speculative assumption, although its anomaly free nature is one of the many reasons why it is appealing.
Jul 19, 2015 at 10:00 history edited Name YYY CC BY-SA 3.0
added 49 characters in body
Jul 19, 2015 at 8:37 history edited Name YYY CC BY-SA 3.0
edited body
Jul 19, 2015 at 8:26 history answered Name YYY CC BY-SA 3.0