ausblenden:
Schlagwörter:
High Energy Physics - Experiment, hep-ex
MPINP:
LHCb - Abteilung Hinton
Zusammenfassung:
A search is presented for long-lived particles with a mass between 25 and 50
GeV/$c^2$ 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/$c^2$ 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.