O. Callot

TL;DR: The LHCb experiment is dedicated to precision measurements of CP violation and rare decays of B hadrons at the Large Hadron Collider (LHC) at CERN (Geneva).

TL;DR: The LHCb trigger as mentioned in this paper selects particles originating from charm and beauty hadrons, which typically fly a finite distance before decaying, using a combination of lepton identification and measurements of the particles' transverse momenta.

TL;DR: The LHCb trigger and its performance based on data taken at the LHC in 2011 is presented in this article, where a combination of lepton identification of particles, transverse momentum of particles and selects particles originating from hadrons which decay after a finite flight distance.

TL;DR: The quantum numbers of the X(3872) meson are determined to be J(PC)=1(++) based on angular correlations in B(+)→X( 3872)K(+) decays, where X(3772)→π(+)π(-)J/ψ and J/ω→μ(+)μ(-).

TL;DR: The Vertex Locator (VELO) as discussed by the authors is a silicon microstrip detector that surrounds the proton-proton interaction region in the LHCb experiment, which is operated in vacuum and uses a bi-phase CO2 cooling system.