Speaker
Description
We explore the interplay between the HEFT and SMEFT theories. Whereas the SMEFT has become the standard in the field of LHC phenomenology, the HEFT provides a more flexible description of the electroweak sector. In particular, we discuss various aspects of (multi-) Higgs production from longitudinal electroweak gauge bosons $W_LW_L\to n\times h$ in the TeV region, and compare predictions from both theories.
We address the question of the SMEFT's validity, and we demonstrate how it could eventually be ruled out by comparing experimental bounds in both theories. This analysis is useful for HL-LHC and machines beyond the LHC that will reach the challenging final state with several Higgs bosons. We further inverstigate the mathematical properties of the flare function $\mathcal{F}(h)$ as an extra source of information about the Higgs vacuum.
Submitted on behalf of a Collaboration? | No |
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