LHC search for di-Higgs decays of stoponium and other scalars in events with two photons and two bottom jets

Nilanjana Kumar and Stephen P. Martin
Phys. Rev. D 90, 055007 – Published 8 September 2014

Abstract

We study the prospects for LHC discovery of a narrow resonance that decays to two Higgs bosons, using the final state of two photons and two bottom jets. Our work is motivated in part by a scenario in which two-body flavor-preserving decays of the top squark are kinematically forbidden. Stoponium, a hadronic bound state of the top squark and its antiparticle, will then form, and may have a large branching fraction into the two Higgs boson final state. We estimate the cross section needed for a 5-sigma discovery at the 14 TeV LHC for such a narrow di-Higgs resonance, using the invariant mass distributions of the final state bottom jets and photons, as a function of the integrated luminosity. The results are also applicable to any other di-Higgs resonance produced by gluon fusion.

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  • Received 15 April 2014

DOI:https://doi.org/10.1103/PhysRevD.90.055007

© 2014 American Physical Society

Authors & Affiliations

Nilanjana Kumar1 and Stephen P. Martin1,2

  • 1Department of Physics, Northern Illinois University, DeKalb, Illinois 60115, USA
  • 2Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510, USA

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Issue

Vol. 90, Iss. 5 — 1 September 2014

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