CP Violation in {B_s}^0 -> J/psi.phi Decays electronic resource Measured with the Collider Detector at Fermilab / by Sabato Leo.
Material type: TextSeries: Springer Theses, Recognizing Outstanding Ph.D. ResearchPublication details: Cham : Springer International Publishing : Imprint: Springer, 2015Description: XIII, 137 p. 69 illus., 22 illus. in color. online resourceContent type: text Media type: computer Carrier type: online resourceISBN: 9783319079295Subject(s): physics | Quantum field theory | String theory | Elementary particles (Physics) | Physics | Elementary Particles, Quantum Field Theory | Quantum Field Theories, String TheoryDDC classification: 539.72 LOC classification: QC793-793.5QC174.45-174.52Online resources: Click here to access onlineIntroduction -- Flavor as a Probe for non-SM Physics -- The Collider Detector at the Fermilab Tevatron -- Analysis Selection -- Preparation of Tools -- The Fit to the Time Evolution -- Systematic Uncertainties -- Results -- Conclusion.
This thesis reports on the final measurement of the flavor-mixing phase in decays of strange-bottom mesons (B_s) into J/psi and phi mesons performed in high-energy proton-antiproton collisions recorded by the Collider Experiment at Fermilab.Interference occurs between direct decays and decays following virtual particle-antiparticle transitions (B_s-antiB_s). The phase difference between transition amplitudes (“mixing phase”) is observable and extremely sensitive to contributions from non-standard-model particles or interactions that may be very hard to detect otherwise – a fact that makes the precise measurement of the B_s mixing phase one of the most important goals of particle physics.The results presented include a precise determination of the mixing phase and a suite of other important supplementary results. All measurements are among the most precise available from a single experiment and provide significantly improved constraints on the phenomenology of new particles and interactions.
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