PT Journal
AU LHCb Collaboration (Aaij, Rea
   Garcia Martin, LM
   Martinez-Vidal, F
   Oyanguren, A
   Remon Alepuz, C
   Ruiz Valls, P
   Sanchez Mayordomo, C
TI Updated search for long-lived particles decaying to jet pairs
SO European Physical Journal C
JI Eur. Phys. J. C
PY 2017
BP 812 - 14pp
VL 77
IS 12
DI 10.1140/epjc/s10052-017-5178-x
LA English
AB 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.
ER