Measurements of Production and Decay Properties of Bs Mesons Decaying into J/Psi Phi with the CMS Detector at the LHC

The production of hadrons containing b-quarks has been measured in protonanti-proton collisions up to center-of-mass energies of 1.96 TeV at the Tevatron.Information at lower energy is provided by electron-positron collision experiments.The underlying theory of hadronic interactions is tuned to those data but cannotreliably predict reaction rates from first principles for higher energies. Therefore,it is important to test the extrapolations and optimize model parameters for thenew energy regime at the LHC. The b-hadrons from proton-proton collisions are amajor source of background in searches for the Higgs boson and other heavy notyet-discovered particles. Hence, it is important to quantify their presence in differentreactions for the main research program at the LHC.The measurement of the Bs-meson production cross section presented in thisdissertation complements the measurements for the B+ and the Bd mesons. Theoutcome is compared to different models for quark production and hadronization. Thethree CMS measurement of B-meson production cross sections are used to calculatethe Bs to J/psi phi branching fraction.The measurement of the time-dependent decay rate of Bs mesons probes theweak interaction and includes the possibility to observe sizable particle anti-particleasymmetries caused by heavy particles and new forces between them that are notpredicted by the Standard Model. In this dissertation the lifetime, lifetime difference,and CP-composition in the decay Bs to J/psi phi have been extracted with a