Cosmological Constraints on the Higgs Boson Mass

TL;DR

This paper analyzes how a non-minimally coupled Higgs field influences inflationary observables and constrains the Higgs boson mass using cosmological data, highlighting the importance of precise Standard Model parameters.

Contribution

It provides a comprehensive analysis of non-minimally coupled Higgs inflation with current cosmological data and derives bounds on the Higgs mass and inflationary parameters.

Findings

Higgs mass constrained between 143.7 and 167 GeV at 95% CL

Non-minimal coupling affects scalar spectral index and tensor-to-scalar ratio

Precise Standard Model parameters are crucial for accurate Higgs potential reconstruction

Abstract

For a robust interpretation of upcoming observations from PLANCK and LHC experiments it is imperative to understand how the inflationary dynamics of a non-minimally coupled Higgs scalar field with gravity may affect the determination of the inflationary observables. We make a full proper analysis of the WMAP7+SN+BAO dataset in the context of the non-minimally coupled Higgs inflation field with gravity. For the central value of the top quark pole mass m_T=171.3 GeV, the fit of the inflation model with non-minimally coupled Higgs scalar field leads to the Higgs boson mass between 143.7 and 167 GeV (95% CL). We show that the inflation driven by a non-minimally coupled scalar field to the Einstein gravity leads to significant constraints on the scalar spectral index and tensor-to-scalar ratio when compared with the similar constraints tensor to from the standard inflation with minimally coupled scalar field. We also show that an accurate reconstruction of the Higgs potential in terms of inflationary observables requires an improved accuracy of other parameters of the Standard Model of particle physics as the top quark mass and the effective QCD coupling constant.