Large scale separation and resonances within LHC range from a prototype BSM model

Abstract

Many theories describing physics beyond the Standard Model rely on a large separation of scales. Large scale separation arises in models with mass-split flavors if the system is conformal in the ultraviolet but chirally broken in the infrared. Because of the conformal fixed point, these systems exhibit hyperscaling and a highly constrained resonance spectrum. We derive hyperscaling relations and investigate the realization of one such system with four light and eight heavy flavors. Our numerical simulations confirm that both light-light and heavy-heavy resonance masses show hyperscaling and depend only on the ratio of the light and heavy flavor masses. The heavy-heavy spectrum is qualitatively different from QCD and exhibits quarkonia with masses not proportional to the constituent quark mass. These resonances are only a few times heavier than the light-light ones, which would put them within reach of the LHC.

6 pages, 3 figures. Version published in PLB, updated figures show in addition data at a second beta value strengthening our conclusions

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Cited by in corpus (22)

• Nonperturbative investigations of SU(3) gauge theory with eight dynamical flavors
• Nonperturbative beta function of twelve-flavor SU(3) gauge theory
• Nonperturbative beta function of eight-flavor SU(3) gauge theory
• Large scale separation and resonances within LHC range from a prototype BSM model
• Large scale separation and hadronic resonances from a new strongly interacting sector
• Looking behind the Standard Model with lattice gauge theory
• Near-conformal dynamics in a chirally broken system
• Emergent strongly coupled ultraviolet fixed point in four dimensions with 8 Kähler-Dirac fermions
• Lattice Gauge Theory for Physics Beyond the Standard Model
• Singlet channel scattering in a Composite Higgs model on the lattice
• Goldstone Boson Scattering with a Light Composite Scalar
• Infrared fixed point and anomalous dimensions in a composite Higgs model
• Lattice simulations of a gauge theory with mixed adjoint-fundamental matter
• Sigma-assisted natural composite Higgs
• The Techni-Pati-Salam Composite Higgs
• Gradient flow step-scaling function for SU(3) with $N_f=8$ fundamental flavors
• Nonperturbative determination of $\beta$ functions for SU(3) gauge theories with 10 and 12 fundamental flavors using domain wall fermions
• Composite Higgs from mass-split models
• Dislocations under gradient flow and their effect on the renormalized coupling
• Mass splittings in a linear sigma model for multiflavor gauge theories
• Examining the Low Energy Dynamics of Walking Gauge Theory
• Investigating BSM Models with Large Scale Separation