A Study Of The Lhcb Experiment S Sensitivity To Cp Violation In Mixing And To Production Asymmetry In Bs Mesons Using Semi Leptonic Decays
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A Study Of The Lhcb Experiment S Sensitivity To Cp Violation In Mixing And To Production Asymmetry In Bs Mesons Using Semi Leptonic Decays
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Author : Kenneth Lessnoff
language : en
Publisher:
Release Date : 2010
A Study Of The Lhcb Experiment S Sensitivity To Cp Violation In Mixing And To Production Asymmetry In Bs Mesons Using Semi Leptonic Decays written by Kenneth Lessnoff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
A Study Of The Lhcb Experiment S Sensitivity To Cp Violation In Mixing And To Production Asymmetery In Bs Mesons Using Semi Leptonic Decays
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Author :
language : en
Publisher:
Release Date : 2010
A Study Of The Lhcb Experiment S Sensitivity To Cp Violation In Mixing And To Production Asymmetery In Bs Mesons Using Semi Leptonic Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Searches For Cp Violation In Charmed Meson Decays
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Author : Hamish Gordon
language : en
Publisher: Springer
Release Date : 2014-06-07
Searches For Cp Violation In Charmed Meson Decays written by Hamish Gordon and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-06-07 with Science categories.
Our current understanding of the fundamental building blocks of the Universe, summarised by the Standard Model of particle physics, is incomplete. For example, it fails to explain why we do not see equal, or almost equal, numbers of particles and their antiparticle partners. To explain this asymmetry requires, among other effects, a mechanism known as charge-parity (CP) violation that causes differences between the rates at which particles and antiparticles decay. CP violation is seen in systems containing bottom and strange quarks, but not in those with up, charm or top quarks. This thesis describes searches for particle-antiparticle asymmetries in the decay rates of charmed mesons. No evidence of CP violation is found. With current sensitivities, an asymmetry large enough to observe probably could not be explained by the Standard Model. Instead an explanation could come from new physics, for example contributions from supersymmetric or other undiscovered heavy particles. In the thesis, the development of new techniques to search for these asymmetries is described. They are applied to data from the LHCb experiment at CERN to make precise measurements of asymmetries in the D^+->K^-K^+pi^+ decay channel. This is the most promising charged D decay for CP violation searches.
Measurements Of Cp Violation In Mixing Of Bs Mesons And The Ds Production Asymmetry At Lhcb
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Author : Suzanne Klaver
language : en
Publisher:
Release Date : 2017
Measurements Of Cp Violation In Mixing Of Bs Mesons And The Ds Production Asymmetry At Lhcb written by Suzanne Klaver and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Cp Violation In Bs J V O Decays At Lhcb And Sensitivity To The Weak Mixing Phase Beta S
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Author : Colin David McLean
language : en
Publisher:
Release Date : 2009
Cp Violation In Bs J V O Decays At Lhcb And Sensitivity To The Weak Mixing Phase Beta S written by Colin David McLean and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Cp Violation In B S 0 J Psi Phi Decays
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Author : Sabato Leo
language : en
Publisher: Springer
Release Date : 2014-08-07
Cp Violation In B S 0 J Psi Phi Decays written by Sabato Leo and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-08-07 with Science categories.
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.
Cp Violation In Bs J Decays At Lhcb And Sensitivity To The Weak Mixing Phase S
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Author : Colin David Mclean
language : en
Publisher:
Release Date : 2009
Cp Violation In Bs J Decays At Lhcb And Sensitivity To The Weak Mixing Phase S written by Colin David Mclean and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
A Study Of Direct Cp Violation In Charged B Meson Decays With The Lhcb Experiment
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Author : Gareth James Rogers
language : en
Publisher:
Release Date : 2012
A Study Of Direct Cp Violation In Charged B Meson Decays With The Lhcb Experiment written by Gareth James Rogers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Studies Of Cp Violation In Charmless Three Body B Hadron Decays
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Author : Daniel O'Hanlon
language : en
Publisher: Springer
Release Date : 2018-11-02
Studies Of Cp Violation In Charmless Three Body B Hadron Decays written by Daniel O'Hanlon and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-11-02 with Science categories.
This book highlights two essential analyses of data collected during the LHCb experiment, based on the Large Hadron Collider at CERN. The first comprises the first observation and studies of matter-antimatter asymmetries in two three-body b-baryon decays, paving the way for more precise measurements of the relatively unknown decay properties of b-baryon decays. The second is an analysis of a charged B meson decay to three charged pions, where previously large matter-antimatter asymmetries were observed in a model-independent analysis. Here a model of the decay amplitude is constructed using the unitarity-conserving ‘K-matrix’ model for the scalar contributions, so as to gain an understanding of how the previously observed matter-antimatter asymmetries arise; further, the model’s construction yields the most precise and comprehensive study of this decay mode to date.
Observation Of Cp Violation In B Dk Decays
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Author : Paolo Gandini
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-09-05
Observation Of Cp Violation In B Dk Decays written by Paolo Gandini and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09-05 with Science categories.
CP violation is a well-established phenomenon in particle physics, but until 2001 it was only observed in kaons. In the last decade, several matter-antimatter asymmetries have been observed in neutral B mesons in line with the expectations of the Standard Model of the weak interaction. Direct CP violation is also expected in the decay rates of charged B+ mesons versus that of B- mesons, though the greatest effects are present in a decay that occurs just twice in 10 million decays. Such rarity requires huge samples to study and this is exactly what the LHC, and its dedicated B-physics experiment LHCb provide. This thesis presents an analysis of the first two years of LHCb data. The author describes the first observation of the rare decay, B- → DK-, D → π-K+ and the first observation of direct CP violation in this B decay. The work constitutes essential information on the experiment’s measurement of a fundamental parameter of the theory and stands as a benchmark against which subsequent analyses of this type will be compared.