Abstract
The inclusive Higgs production rate through gluon fusion has been measured to be in agreement with the Standard Model (SM). We show that even if the inclusive Higgs production rate is very SM-like, a precise determination of the boosted Higgs transverse momentum shape offers the opportunity to see effects of natural new physics. These measurements are generically motivated by effective field theory arguments and specifically in extensions of the SM with a natural weak scale, like composite Higgs models and natural supersymmetry. We show in detail how a measurement at high transverse momentum of $H\to 2\ell+\mathbf{p}\!\!/_T$ via $H\to \tau\tau$ and $H\to WW^*$ could be performed and demonstrate that it offers a compelling alternative to the $t\bar t H$ channel. We discuss the sensitivity to new physics in the most challenging scenario of an exactly SM-like inclusive Higgs cross-section.
Highlights
After the observation of a Standard Model-like Higgs boson [1,2] the main physics program has shifted to measuring its precise properties
In the Minimal Composite Higgs Model (MCHM) [61], electroweak symmetry is broken dynamically by a strong interaction based on the coset S O(5)/S O(4)
Even though the inclusive rate has been measured to be in agreement with the Standard Model (SM), the study of a Higgs boosted by recoil against a hard jet constitutes an interesting, albeit challenging, measurement
Summary
After the observation of a Standard Model-like Higgs boson [1,2] the main physics program has shifted to measuring its precise properties. A change in the top-Yukawa affects the Higgs production cross section and can even compensate for new particles in the loop such that a SM-like inclusive cross section is obtained even though new physics is present. The main idea now is to study boosted Higgs shapes above a certain pT scale This scale should be high enough to resolve the top loop beyond the effective description, but low enough to keep the effective description of the loop of the new particle valid; see [45] for a discussion in a concrete model.
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