Higgs-Yukawa Model in Chirally Invariant Lattice Field Theory

Table 1

The results (taken from [29]) of a study comparing the resonance parameters of the Higgs boson with the results of fits to the temporal correlation function and momentum space Higgs boson propagator. Errors are statistical only. Except for the cut-off scale, all the results are in lattice units. The fermion mass is set to be the physical top-quark mass. Results from three values of the quartic coupling are presented. Also shown are the resonance mass and width from Breit-Wigner fits to the scattering cross-section. Finally, a perturbative estimate of the resonance width is included. We note that because of some data losses the error on 𝑚^𝑝_𝐻 at 𝜆=1.0 is larger than that for the other parameters.

𝜆	Λ [GEV]	𝑚^resonance𝐻	Γ^resonance𝐻	Γ^pert𝐻	𝑚^𝑝𝐻	𝑚^𝑐𝐻
0.01	883(1)	0.278(3)	0.0018(14)	0.0054(1)	0.278(2)	0.274(4)
1.0	1503(5)	0.383(6)	0.0169(4)	0.036(8)	0.386(28)	0.372(4)
∞	1598(2)	0.403(6)	0.037(9)	0.052(2)	0.405(4)	0.403(7)