The 'triviality' of Φ44 has been traditionally interpreted within perturbation theory where the prediction for the Higgs boson mass depends on the magnitude of the ultraviolet cutoff A. This approach crucially assumes that the vacuum field and its quantum fluctuations rescale in the same way. The results of the present lattice simulation, confirming previous numerical indications, show that this assumption is not true. As a consequence, large values of the Higgs mass mH can coexist with the limit Λ → ∞. As an example, by extrapolating to the Standard Model our results obtained in the Ising limit of the one-component theory, one can obtain a value as large as mH = 760 ± 21 GeV, independently of Λ. © 2004 Published by Elsevier B.V.
Indications on the Higgs boson mass from lattice simulations
CEA, Paolo;CONSOLI, MAURIZIO;COSMAI, LEONARDO
2004-01-01
Abstract
The 'triviality' of Φ44 has been traditionally interpreted within perturbation theory where the prediction for the Higgs boson mass depends on the magnitude of the ultraviolet cutoff A. This approach crucially assumes that the vacuum field and its quantum fluctuations rescale in the same way. The results of the present lattice simulation, confirming previous numerical indications, show that this assumption is not true. As a consequence, large values of the Higgs mass mH can coexist with the limit Λ → ∞. As an example, by extrapolating to the Standard Model our results obtained in the Ising limit of the one-component theory, one can obtain a value as large as mH = 760 ± 21 GeV, independently of Λ. © 2004 Published by Elsevier B.V.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
