Revealing timid pseudo-scalars with taus at the LHC

Abstract

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${}^{-1}$.

5 pages, 4 figures, 2 tables. Additional material starting at page 6 after the reference list. v2: References added, typos fixed, comparison of di-tau and di-photon projected reach included in additional material. v3: discussion of systematic uncertainties and lepton isolation criteria expanded, figure 3 added, version agrees with published article

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Cited by in corpus (17)

• Axion-Like Particles at Future Colliders
• Light scalars in composite Higgs models
• Exotic decays of top partners: mind the search gap
• Relaxion and light (pseudo)scalars at the HL-LHC and lepton colliders
• Electroweak baryogenesis and gravitational waves in a composite Higgs model with high dimensional fermion representations
• Probing naturally light singlets with a displaced vertex trigger
• Unleashing the full power of LHCb to probe Stealth New Physics
• Loop-Generated Neutrino Masses in Composite Higgs Models
• A Light Scalar in the Minimal Dilaton Model in Light of LHC Constraints
• Discussing 125 GeV and 95 GeV excess in Light Radion Model
• Searching for axionlike particle at future $ep$ colliders
• Exploring new possibilities to discover a light pseudo-scalar at LHCb
• Searching for axion-like particles with data scouting at ATLAS and CMS
• Dark matter in (partially) composite Higgs models
• Tera-Zooming in on light (composite) axion-like particles
• Future lepton collider prospects for a ubiquitous composite pseudo-scalar
• Composite self-interacting dark matter and Higgs