Measurement of the Higgs boson mass from the H→γγ and H→ZZ∗→4ℓ channels with the ATLAS detector using 25 fb−1 of pp collision data

By Atlas Collaboration. 2014

252 citations recorded by the source corpus.

© 2014 CERN, for the ATLAS Collaboration. An improved measurement of the mass of the Higgs boson is derived from a combined fit to the reconstructed invariant mass spectra of the decay channels H→γγ and H→ZZ∗→4. The analysis uses the pp collision data sample recorded by the ATLAS experiment at the CERN Large Hadron Collider at center-of-mass energies of 7 TeV and 8 TeV, corresponding to an integrated luminosity of 25fb-1. The measured value of the Higgs boson mass is mH=125.36±0.37(stat)±0.18(syst)GeV. This result is based on improved energy-scale calibrations for photons, electrons, and muons as well as other analysis improvements, and supersedes the previous result from ATLAS. Upper limits on the total width of the Higgs boson are derived from fits to the invariant mass spectra of the H→γγ and H→ZZ∗→4 decay channels.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/e5e9e4a346977cb4d06c07da03d0fd89dccb9d93

Citations in the corpus

• Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector (2015, unknown): “At the value of the Higgs boson mass obtained from the combination of the ATLAS H → γγ andH → ZZ∗ measurements [116],mH = 125.”
• Measurements of the Higgs boson production and decay rates and coupling strengths using pp collision data at \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\o (2015, unknown): “41 GeV [13], reported results in the H → ττ [14] and H → bb̄ [15] fermionic decay modes, and published upper limits on the rare decays H → Zγ [16] and H → μμ [17].”