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

A bstract 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...

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Bibliographic Details
Published in:The journal of high energy physics 2013-07, Vol.2013 (7), p.1-41, Article 148
Main Authors: Gouzevitch, Maxime, Oliveira, Alexandra, Rojo, Juan, Rosenfeld, Rogerio, Salam, Gavin P., Sanz, Veronica
Format: Article
Language:English
Subjects:
Classical and Quantum Gravitation
Computational efficiency
Decay
Elementary Particles
Higgs bosons
High energy physics
High Energy Physics - Experiment
High Energy Physics - Phenomenology
Marking
Pair production
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Relativity Theory
Searching
Strategy
String Theory
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Summary:A bstract 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 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 4 b final state has enough sensitivity to provide a complementary handle in searches for enhanced Higgs pair production at the LHC.
ISSN:1029-8479
1126-6708
1029-8479
DOI:10.1007/JHEP07(2013)148