Search for a low-mass neutral Higgs boson with suppressed couplings to fermions using events with multiphoton final states

Le résumé fourni par la source

A search for a Higgs boson with suppressed couplings to fermions, ${h}_{f}$, assumed to be the neutral, lower-mass partner of the Higgs boson discovered at the Large Hadron Collider, is reported. Such a Higgs boson could exist in extensions of the standard model with two Higgs doublets, and could be produced via $p\overline{p}\ensuremath{\rightarrow}{H}^{\ifmmode\pm\else\textpm\fi{}}{h}_{f}\ensuremath{\rightarrow}{W}^{*}{h}_{f}{h}_{f}\ensuremath{\rightarrow}4\ensuremath{\gamma}+X$, where ${H}^{\ifmmode\pm\else\textpm\fi{}}$ is a charged Higgs boson. This analysis uses all events with at least three photons in the final state from proton-antiproton collisions at a center-of-mass energy of 1.96 TeV collected by the Collider Detector at Fermilab, corresponding to an integrated luminosity of $9.2\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. No evidence of a signal is observed in the data. Values of Higgs-boson masses between 10 and $100\text{ }\text{ }\mathrm{GeV}/{c}^{2}$ are excluded at 95% Bayesian credibility.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.