Physicists map new strategy to detect hidden Higgs particles at world's biggest collider
Researchers have identified a way to spot evidence of an expanded Higgs sector—a theoretical extension of the Standard Model—by tracking collisions that produce multiple bottom quarks at the Large Hadron Collider. The discovery could validate an alternative physics framework and reshape how scientists search for physics beyond current theory.
Originaltitel: 4<em>b</em> + <em>X</em> via electroweak multi-Higgs production as smoking gun signals for Type-I 2HDM at the LHC
<p>Extending the Standard Model (SM) by one additional Higgs doublet leads to the Two-Higgs Doublet Model (2HDM). A specific charge assignment of the SM fermions under the Z<sub>2</sub> symmetry leads to the Type-I 2HDM. A key feature of the Type-I 2HDM is that all the additional Higgs bosons can be fermiophobic, when their couplings to the SM fermions are suppressed. As a result, all the new Higgs states can be fairly light, ~ 100 GeV or less, without being in conflict with the current data from the direct Higgs boson searches and the <em>B</em>-physics measurements. In a recent study Ref. [1], which this proceeding is based on, we established that the new neutral as well as the charged Higgs bosons in this model can all be simultaneously observable in the multi-<em>b</em> final state at the HL-LHC. An experimental validation of our results would be a clear indication that the true underlying Higgs sector in nature is the Type-I 2HDM. Additionally, in this proceeding we discuss the prospects of our work in the future <em>e</em><sup>+</sup><em>e</em><sup>−</sup> colliders.</p>