The Physics of the Higgs-like Boson

TL;DR

This paper reviews the current understanding of the Higgs-like boson discovered at the LHC, confirming its properties align with the Standard Model but highlighting the need for more precise data to determine its true nature.

Contribution

It summarizes experimental data on the Higgs-like boson and discusses constraints on alternative electroweak symmetry breaking scenarios.

Findings

Data consistent with Standard Model predictions

Measured couplings support Higgs boson identification

Further data needed to distinguish Higgs nature

Abstract

The present knowledge on the Higgs-like boson discovered at the LHC is summarized. The data accumulated so far are consistent with the Standard Model predictions and put interesting constraints on alternative scenarios of electroweak symmetry breaking. The measured couplings to gauge bosons and third-generation fermions indicate that a Higgs particle has indeed been found. More precise data are needed to clarify whether it is the unique Higgs boson of the Standard Model or the first member of a new variety of dynamical (either elementary or composite) fields.