Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 3: Higgs Physics II (BSM Higgs)
T 3.4: Vortrag
Montag, 31. März 2025, 17:30–17:45, ZHG105
Electroweak spin-1 resonances in Composite Higgs models, pt. 1 — Rosy Caliri1, •Jan Hadlik1, Manuel Kunkel1, Werner Porod1, and Christian Verollet2 — 1Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Germany — 2Institut de Physique des 2 Infinis de Lyon (IP2I), 69100 Villeurbanne Cedex, France
Composite Higgs models offer an elegant solution to the hierarchy problem by assuming that the Higgs boson is not an elementary particle but a composite state. The Higgs emerges as a pseudo-Nambu-Goldstone boson due to spontaneous symmetry breaking within a new strongly interacting sector. The resulting low-energy dynamics are described by the Coleman-Callan-Wess-Zumino (CCWZ) formalism. These models predict a rich spectrum of additional bound states, including vector resonances, which can arise naturally from an extended hidden global symmetry that is fully gauged. We investigate models where the unbroken subgroup of the strong sector contains SU(2)L × SU(2)R and demonstrate that a generic prediction of these models is the existence of two neutral and one charged spin-1 resonance that mix significantly with the electroweak gauge bosons. Consequently, these states are of considerable interest for phenomenological studies.
Keywords: Composite Higgs; model building; vector resonances