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Article
Report number arXiv:1612.00945 ; CERN-EP-2016-283 ; LHCB-PAPER-2016-047
Title Search for massive long-lived particles decaying semileptonically in the LHCb detector
Author(s) LHCb Collaboration  Mostra tots els 771 autors
Publication 2017-04-10
Imprint 03 Dec 2016
Number of pages 25
Note All figures and tables, along with any supplementary material and additional information, are available at https://lhcbproject.web.cern.ch/lhcbproject/Publications/LHCbProjectPublic/LHCb-PAPER-2016-047.html
In: Eur. Phys. J. C 77 (2017) 224
DOI 10.1140/epjc/s10052-017-4744-6
Subject category hep-ex ; Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords Higgs physics ; exotics ; supersymmetry ; particle and resonance production ; experimental results
Abstract A search is presented for massive long-lived particles decaying into a muon and two quarks. The dataset consists of proton-proton interactions at centre-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 1 and 2 1/fb, respectively. The analysis is performed assuming a set of production mechanisms with simple topologies, including the production of a Higgs-like particle decaying into two long-lived particles. The mass range from 20 to 80 GeV and lifetimes from 5 to 100 ps are explored. Results are also interpreted in terms of neutralino production in different supersymmetric models, with masses in the 23-198 GeV range. No excess above the background expectation is observed and upper limits are set on the production cross-section for various points in the parameter space of theoretical models.
Copyright/License preprint: © 2016-2025 CERN (License: CC-BY-4.0)
publication: © 2017-2025 The Author(s) (License: CC-BY-4.0), sponsored by SCOAP³
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