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

Abstract : We 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.
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http://hal.in2p3.fr/in2p3-00805469
Contributor : Sylvie Flores <>
Submitted on : Thursday, March 28, 2013 - 7:19:55 AM
Last modification on : Monday, June 28, 2021 - 3:56:02 PM

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M. Gouzevitch, A. Oliveira, J. Rojo, R. Rosenfeld, G. Salam, et al.. Scale-invariant resonance tagging in multijet events and new physics in Higgs pair production. Journal of High Energy Physics, Springer, 2013, 07(2013), pp.148. ⟨10.1007/JHEP07(2013)148⟩. ⟨in2p3-00805469⟩

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