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v3.3.5
- Luca: data available, not looked at yet.
- Tom has a suggestion to use EFT to solve for lambda=0. Clearly this is only valid as long as the EFT conditions are met.
- Jorgen asked about a low SUSY scenario where experiments claim lambda=0: exactly why and how does the reversed situation differ where the experiment is replaced by the HEFT EFT model and the SUSY parameters are solved from that? The argument use that the results from the experiment is equivalent (we think) to a statement on HEFT lambda=0 conditioned by all other HEFT parameters set equal to zero. After Stefano showed the equations for lambda in C2HDM it became clear why that operation does not commute. The "EFT-first" solutions does not include the low mass contribution at all, so it cannot give the same SUSY parameters as the full SUSY calculation solved using the experiment testing the lambda=0 scenario. The point is that even if the measurement is making statements for a hypothesis test that is not valid in this case (lambda=0 seems to be a HEFT EFT model statement) it can still be used, and it is important to understand that the operation cannot be reversed without using the full SUSY model if the EFT condition is not met.