Search for massive long-lived particles decaying semileptonically in the LHCb detector

LHCb Collaboration

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Resum

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 2fb-1, 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 / c2and lifetimes from 5 to 100ps are explored. Results are also interpreted in terms of neutralino production in different R-Parity violating supersymmetric models, with masses in the 23–198 GeV/c2range. 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.

Idioma originalAnglès
Número d’article224
RevistaEuropean Physical Journal C
Volum77
Número4
DOIs
Estat de la publicacióPublicada - 1 d’abr. 2017
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