Question originally referred to electrostrong, but I actually meant to ask about electroweak. Edited to fix, but this is why there's an answer referencing ES not EW - that's my bad.
Broadly as the question asks.
The 7~8 TeV LHC was adequate to verify the Highs scalar field.Extrapolating, one might need equipment perhaps an order of magnitude more than some particle or phenomena, to confidently explore, detect, and verify the phenomena with ease. But perhaps not - far lower energies in other accelerators were able to make inroads on the Higgs and may have proved it over time, although they were slower to accumulate statistically compelling data.
A similar situation exists for electro
strongweak unification as existed with the Highs in the 1990s~2000s - we have a strong belief it happens at some energy, models strongly suggest how it happens and what observables might exist (unlike GUT which is much less clear), and an idea of the energy ranges it might involve.
(Natural experiments might also include ultra-high energy particles although it's unclear if these will either produce useful observables or indeed reach these energies often enough to be useful).
But how accessible/realistic are the energies needed to explore electro
strongweak unification? What is likely to be involved if we wanted to experimentally observe or verify the phenomenon, even if at less than ideal energies?
Also, since the very behaviour of quantum fields changes as a result of the phenomenon, this could be useful (very distinctive observables) or unhelpful (for the first time in human experience, fundamentals that hold atoms and subatomic particles together and control their behaviour no longer exist in the same forms). What are the implications of this, for such experiments, and what might we hope to observe?
(I'm assuming there could be a wide range of observables, as with the Higgs:
- Some will be observable at lower energy but at least suggest it occurred,
- Some will be "golden" observables that plainly show the change occurred,
- Others will need multiple sustained (or rare) observations, or higher energies, to provide statistically robust findings.
I'm interested in all 3 of these, in the answer, but the first 2 are important as they would at least allow for minimal verification and data capture.)