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Constructing a composite Higgs model with built-in large separation of\n scales

2019/12/27 by Oliver Witzel, Witzel, Oliver, Anna Hasenfratz +1
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.1912.12255

openalex publication_date 2019/12/27 · openalex created_date 2022/07/19 · openalex updated_date 2026/07/28

Abstract

Experimentally the existence of a light 125 GeV Higgs boson is well\nestablished but so far no other heavier resonances have been observed. Viable\nmodels to describe the Higgs boson as composite particle require hence to\nexhibit a large separation of scales. This occurs naturally in systems located\nnear a conformal fixed point irrespective whether the system lies outside or\ninside the conformal window. We demonstrate the latter case by investigating a\nmass-split model with four light and six heavy flavors. By construction\nmass-split models exhibit a large separation of scales and feature in addition\na highly constrained hadron spectrum. We present results based on the low-lying\nconnected meson spectrum. Although the light sector is chirally broken, we show\nthat it exhibits hyperscaling which is typical for conformal systems.\n

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