Updated search for long-lived particles decaying to jet pairs
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s10052-017-5178-x_pdfa.pdf
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Author(s)
LHCB Collaboration
Boettcher, Thomas Julian
Ilten, Philip J
Williams, Michael
Date Issued
November 2017
Journal
European Physical Journal C: Particles and Fields
Publisher
Springer/Società Italiana di Fisica
Citation
Aaij, R. et al. “Updated Search for Long-Lived Particles Decaying to Jet Pairs.” The European Physical Journal C 77, 12 (December 2017): 812 © 2017 CERN for the benefit of the LHCb collaboration
Version
Final published version
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 the decay 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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-017-5178-x
