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## Scale-invariant resonance tagging in multijet events and new physics in Higgs pair production

### Abstract

38 pages, 17 figuresWe study resonant pair production of heavy particles in fully hadronic final states by means of jet substructure techniques. We propose a new resonance tagging strategy that smoothly interpolates between the highly boosted and fully resolved regimes, leading to uniform signal efficiencies and background rejection rates across a broad range of masses. Our method makes it possible to efficiently replace independent experimental searches, based on different final state topologies, with a single common analysis. As a case study, we apply our technique to pair production of Higgs bosons decaying into $b\bar{b}$ pairs in generic New Physics scenarios. We adopt as benchmark models radion and massive KK graviton production in warped extra dimensions. We find that despite the overwhelming QCD background, the $4b$ final state has enough sensitivity to provide a complementary handle in searches for enhanced Higgs pair production at the LHC

Topics: [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], [ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
Publisher: Springer
Year: 2013
DOI identifier: 10.1007/JHEP07(2013)148
OAI identifier: oai:HAL:in2p3-00805469v1
Provided by: Hal-Diderot