2023/02/14 by Guglielmo Coloretti, Andreas Crivellin, Coloretti, Guglielmo +5 · 8 citations
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · doi:10.48550/arxiv.2302.07276
openalex publication_date 2023/02/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this article, we recast and combine the CMS and ATLAS analyses of the Standard Model Higgs boson decaying to a pair of W bosons in order to search for low-mass resonances in this channel. We provide limits on the corresponding cross section assuming direct production via gluon fusion. For the whole range of masses we consider (90 GeV to 200 GeV), the observed limit on the cross section turns out to be weaker than the expected one. Furthermore, at ≈95 GeV the limit is weakest and a new scalar decaying into a pair of W bosons (which subsequently decay leptonically) with a cross section ≈0.5 pb is preferred over the Standard Model hypothesis by \gtrsim 2.5 σ. In light of the excesses in the γγ, τ+τ- and b b channels at similar masses, this strengthens the case for such a new Higgs boson. Furthermore, this analysis also gives room for the scalar candidate at 151 GeV decaying into W bosons.