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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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

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Autor(es):
Gouzevitch, Maxime [1] ; Oliveira, Alexandra [2, 3, 4] ; Rojo, Juan [5] ; Rosenfeld, Rogerio [2, 5, 4] ; Salam, Gavin P. [5, 6] ; Sanz, Veronica [7, 8]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Lyon 1, CNRS IN2P3, Inst Phys Nucl Lyon, Villeurbanne - France
[2] Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo - Brazil
[3] CEA Saclay, Inst Phys Theor, F-91191 Gif Sur Yvette - France
[4] ICTP South Amer Inst Fundamental Res, BR-01140070 Sao Paulo - Brazil
[5] CERN, TH Unit, PH Dept, CH-1211 Geneva 23 - Switzerland
[6] Univ Paris 06, CNRS UMR 7589, LPTHE, F-75252 Paris - France
[7] Univ Sussex, Dept Phys & Astron, Brighton BN1 9QH, E Sussex - England
[8] York Univ, Dept Phys & Astron, Toronto, ON M3J 1P3 - Canada
Número total de Afiliações: 8
Tipo de documento: Artigo Científico
Fonte: Journal of High Energy Physics; n. 7 JUL 2013.
Citações Web of Science: 71
Resumo

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 (b) over bar 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. (AU)

Processo FAPESP: 11/11973-4 - ICTP Instituto Sul-Americano para Pesquisa Fundamental: um centro regional para física teórica
Beneficiário:Nathan Jacob Berkovits
Linha de fomento: Auxílio à Pesquisa - Temático