Composite Higgs at high transverse momentum

• Published in: The journal of high energy physics Vol. 2020; no. 1; pp. 1 - 42
• Main Authors: Banfi, Andrea, Dillon, Barry M., Ketaiam, Wissarut, Kvedaraitė, Sandra
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.01.2020; Springer Nature B.V; SpringerOpen
• Subjects: Classical and Quantum Gravitation; Couplings; Elementary Particles; Gluons; Higgs Physics; High energy physics; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Regular Article - Theoretical Physics; Relativity Theory; String Theory; Technicolor and Composite Models; Transverse momentum; Technicolor and Composite Models; Higgs Physics
• ISSN: 1029-8479; 1029-8479
• DOI: 10.1007/JHEP01(2020)089

A bstract In this paper we explore composite Higgs scenarios through the effects of light top-partners in Higgs+Jet production at the LHC. The pseudo-Goldstone boson nature of the Higgs field means that single-Higgs production via gluon fusion is insensitive to the mass spectrum of the top-partners. However in associated production this is not the case, and new physics scales may be probed. In the course of the work we consider scenarios with both one and two light top-partner multiplets in the spectrum of composite states. In compliance with perturbativity and experimental constraints, we study corrections to the Higgs couplings and the effects that the light top-partner multiplets have on the transverse momentum spectrum of the Higgs. Interestingly, we find that the corrections to the Standard Model expectation depend strongly on the representation of the top-partners in the global symmetry.