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Search for long-lived particles decaying to jet pairs

Author(s)
Counts, Ian Thomas Hunt; Williams, Michael; Ilten, Philip J
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Abstract
A search is presented for long-lived particles with a mass between 25 and 50 GeV/c[superscript 2] and a lifetime between 1 and 200 ps in a sample of proton–proton collisions at a centre-of-mass energy of √s = 7 TeV, corresponding to an integrated luminosity of 0.62 fb[superscript −1], collected by the LHCb detector. The particles are assumed to be pair-produced by the decay of a standard model-like Higgs boson. The experimental signature of the long-lived particle is a displaced vertex with two associated jets. No excess above the background is observed and limits are set on the production cross-section as a function of the long-lived particle mass and lifetime.
Date issued
2015-04
URI
http://hdl.handle.net/1721.1/97156
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, et al. “Search for Long-Lived Particles Decaying to Jet Pairs.” Eur. Phys. J. C 75, no. 4 (April 2015). © 2015 CERN for the benefit of the LHCb collaboration
Version: Final published version
ISSN
1434-6044
1434-6052

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