Tevatron Measurements on Standard Model Higgs

TL;DR

This paper reports on Tevatron experiments analyzing the properties of the Standard Model Higgs boson, including its production, decay channels, spin-parity, and searches for exotic decays, with a significance of 3.0σ at 125 GeV/c².

Contribution

It provides the first combined analysis of Tevatron data on the SM Higgs, including measurements of its couplings, spin-parity, and searches for invisible decays, advancing understanding of Higgs properties.

Findings

3.0σ local significance at 125 GeV/c²

Exclusion of certain spin-parity hypotheses at 3σ

Constraints on invisible Higgs decays below 120 GeV

Abstract

We present the study of the SM Higgs properties obtained from the combined analysis of the up-to 10 fb$^{-1}$ dataset collected by the CDF and D0 experiments during the $p\bar{p}$ collision at $\sqrt{s}=1.96$~TeV of Tevatron Run II. The observed local significance for the SM Higgs boson signal is of 3.0$\sigma$ at $m_H=125$ GeV/c$^2$. After a brief review of analysis channels contributing the most, where the Higgs boson decays to a pair of $W$ bosons or to a pair of $b$-quarks jets, the signal production cross section and its couplings to fermions and vector bosons are analyzed. Other presented results are the recent study of the spin and parity of the SM Higgs performed by the D0 collaboration, leading to 3$\sigma$ level expected exclusion of the JP$=0^{-}$ and JP$=2^{+}$ hypothesis, and the investigation of exotics final states with invisible decay products of the Higgs, excluded by the CDF collaboration for masses below 120 GeV.