Decoding beauty

Abstract

Impact paragraph Acknowledgements 2.4. Λ 0 b → Λ + − decays 2.5. Towards measuring C 9 and C 10These resonant decays are experimentally useful as they are used to validate the analysis procedure, as will be described in Chap. 4. In contrast to mesonic b → s decays, the Λ 0 b → Λ + − decays have a larger decay rate in the high q 2 region compared to the low q 2 region, allowing the search for new physics in a different, unexplored kinematic region. This is caused by the different form factors, the non-perturbative QCD effects that describe the transition between the initial and final state hadrons, of the Λ 0 b → Λ + − decays and by the difference in spin structure. The LHCb experimentThe analyses described in this thesis use data collected by the Large Hadron Collider beauty (LHCb) experiment at CERN. The LHCb experiment is located at interaction point 8 of the Large Hadron Collider (LHC). The LHC accelerates and collides proton beams (pp collisions) to a maximum of 7.5 TeV. This chapter describes the LHC and the LHCb experiment, the different LHCb subdetectors, the used trigger system, and the use of event simulation within the experiment. 3.4. Particle identification 10 MeV, which is used for the signal extraction in the physics analyses.