Updated search for long-lived particles decaying to jet pairs

David, Pieter;LHCb collaboration
(2017) European Physical Journal C. Particles and Fields — Vol. 77, n° 12, p. 812 (2017)

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Authors
  • David, Pieterorcid-logoNikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands
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  • LHCb collaboration
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Abstract
A search is presented for long-lived particles with a mass between 25 and 50 GeV/c2 and a lifetime between 2 and 500 ps, using proton-proton collision data corresponding to an integrated luminosity of 2.0 fb−1, collected by the LHCb detector at centre-of-mass energies of 7 and 8 TeV. The particles are assumed to be pair-produced in thedecay of a 125 GeV/c2 Standard-Model-like Higgs boson. The experimental signature is a single long-lived particle, identified by a displaced vertex with two associated jets. No excess above background is observed and limits are set on the production cross-section as a function of the mass and lifetime of the long-lived particle.
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  • CERN

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David, P., & LHCb collaboration. (2017). Updated search for long-lived particles decaying to jet pairs. European Physical Journal C. Particles and Fields, 77(12), 812. https://doi.org/10.1140/epjc/s10052-017-5178-x (Original work published 2017)