Revealing timid pseudo-scalars with taus at the LHC

Daejeon); Gabriele Ferretti (Chalmers U. Tech.); Giacomo Cacciapaglia (Lyon; Hugo Serodio (Lund U.); IPN); Thomas Flacke (IBS

arxiv: 1710.11142 · v3 · pith:UO6LPHZ4new · submitted 2017-10-30 · ✦ hep-ph · hep-ex

Revealing timid pseudo-scalars with taus at the LHC

Giacomo Cacciapaglia (Lyon , IPN) , Gabriele Ferretti (Chalmers U. Tech.) , Thomas Flacke (IBS , Daejeon) , Hugo Serodio (Lund U.) This is my paper

classification ✦ hep-ph hep-ex

keywords modelssearchesaboveallowedbelowboostedcompositecompositeness

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A light pseudo-scalar that is copiously produced at the LHC may still be allowed by present searches. While masses above 65 GeV are effectively covered by di-photon searches, the lower mass window can be tested by a new search for boosted di-tau resonances. We test this strategy on a set of composite Higgs models with top partial compositeness, where most models can be probed with an integrated luminosity below 300 fb$^{-1}$.

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