B′s with direct decays: Tevatron and LHC discovery prospects in the bb̄+E□T channel

Johan Alwall, Jonathan L. Feng, Jason Kumar, Shufang Su

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We explore the discovery prospects for B′B̄′ pair production followed by direct decays B′→bX, where B′ is a new quark and X is a long-lived neutral particle. We develop optimized cuts in the (mB′,mX) plane and show that the 7 TeV LHC with an integrated luminosity of 1(10)fb-1 may exclude masses up to m B′∼620(800)GeV, completely covering the mass range allowed for new quarks that get mass from electroweak symmetry breaking. This analysis is applicable to other models with bb̄E□T signals, including supersymmetric models with bottom squarks decaying directly to neutralinos, and models with exotic quarks decaying directly to GeV-scale dark matter. To accommodate these and other interpretations, we also present model-independent results for the bb̄E□T cross section required for exclusion and discovery.

Original languageEnglish (US)
Article number074010
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume84
Issue number7
DOIs
StatePublished - Oct 10 2011

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decay
quarks
neutral particles
pair production
exclusion
dark matter
broken symmetry
coverings
luminosity
cross sections

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

B′s with direct decays : Tevatron and LHC discovery prospects in the bb̄+E□T channel. / Alwall, Johan; Feng, Jonathan L.; Kumar, Jason; Su, Shufang.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 84, No. 7, 074010, 10.10.2011.

Research output: Contribution to journalArticle

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