The role of low-energy observables in precision Higgs analysis

Abstract

A conventional approach to precision calculations of Higgs boson observables uses quark masses $m_c$ and $m_b$ as inputs. However, quark masses are single numbers that hide a variety of low-energy data from which they are extracted, and also hide the various sources of theoretical uncertainties and correlations with additional input parameters such as ${\alpha }_s$. Higher-precision calculations, which are needed to give meaning to future measurements, require more direct engagement with the low-energy data in a global analysis. We present an initial calculation in this direction, which illustrates the procedure and reveals some of the theory uncertainties that challenge subpercent determinations of Higgs boson partial widths.

21 pages, 2 figures; v2: minor changes, typos corrected

References in corpus (13)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Big-Bang Nucleosynthesis
• The global electroweak fit at NNLO and prospects for the LHC and ILC
• Study of the mass and spin-parity of the Higgs boson candidate via its decays to Z boson pairs
• Precision Measurements of Higgs Couplings: Implications for New Physics Scales
• Heavy Quark Masses from Sum Rules in Four-Loop Approximation
• Low energy moments of heavy quark current correlators at four loops
• The bottom-quark mass from non-relativistic sum rules at NNNLO
• Generalization of the Brodsky-Lepage-Mackenzie optimization within the $\{\beta \}$-expansion and the Principle of Maximal Conformality
• QCD sum rule determination of the charm-quark mass
• Renormalization Group Improved Bottom Mass from Upsilon Sum Rules at NNLL Order
• Precision Electroweak Analysis after the Higgs Boson Discovery