Measurement of Indirect CP Asymmetries in D0→K−K+ and D0→pi−pi+ Decays with the LHCb Experiment PDF Download
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Author: Andreas Jäger
Publisher:
ISBN:
Category : Measurement
Languages : en
Pages :
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Author: Andreas Jäger
Publisher:
ISBN:
Category : Measurement
Languages : en
Pages :
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Author: Sascha Stahl
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Markus Röhrken
Publisher: Springer Science & Business Media
ISBN: 3319007262
Category : Science
Languages : en
Pages : 205
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This thesis describes a high-quality, high-precision method for the data analysis of an interesting elementary particle reaction. The data was collected at the Japanese B-meson factory KEKB with the Belle detector, one of the most successful large-scale experiments worldwide. CP violation is a subtle quantum effect that makes the world look different when simultaneously left and right and matter and antimatter are exchanged. This being a prerequisite for our own world to have developed from the big bang, there are only a few experimental indications of such effects, and their detection requires very intricate techniques. The discovery of CP violation in B meson decays garnered Kobayashi and Maskawa, who had predicted these findings as early as 1973, the 2008 Nobel prize in physics. This thesis describes in great detail what are by far the best measurements of branching ratios and CP violation parameters in two special reactions with two charm mesons in the final state. It presents an in-depth but accessible overview of the theory, phenomenology, experimental setup, data collection, Monte Carlo simulations, (blind) statistical data analysis, and systematic uncertainty studies.
![Study of the Decay D0[forward Arrow] K[pi] ̄in FOCUS PDF](https://books.google.com/books/content/images/frontcover/kdq2M_WB-CQC?fife=w80-h100)
Author: Jonathan Marion Link
Publisher:
ISBN:
Category :
Languages : en
Pages : 302
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Author: Sheldon Stone
Publisher: World Scientific
ISBN: 9789810218362
Category : Science
Languages : en
Pages : 676
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This 2nd edition is an extensive update of "B Decays?. The revisions are necessary because of the extensive amount of new data and new theoretical ideas. This book reviews what is known about b-quark decays and also looks at what can be learned in the future.The importance of this research area is increasing, as evidenced by the approval of the luminosity upgrade for CESR and the asymmetric B factories at SLAC and KEK, and the possibility of experiments at hadron colliders.The key experimental observations made thus far, measurement of the lifetimes of the different B species, B0-B0 mixing, the discovery of ?Penguin? mediated decays, and the extraction of the CKM matrix elements Vub and Vcb from semileptonic decays, as well as more mundane results, are described in great detail by the experimentalists who have been closely involved with making the measurements. Theoretical progress in understanding b-quark decays using HQET and lattice gauge techniques are described by theorists who have developed and used these techniques.Synthesizing the experimental and theoretical information, several articles discuss the implications for the ?Standard Model? and how further tests can be done using measurements of CP violation in the B system.
Author: Paolo Gandini
Publisher: Springer
ISBN: 9783319376851
Category : Science
Languages : en
Pages : 0
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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.
![A Measurement of the E/[pi] Ratio Difference Between Short (250 Ns) and Long (2.2[microseconds]) Integration Times with the D0 Uranium- Liquid Argon Central Calorimeter PDF](https://books.google.com/books/content/images/frontcover/zDH15QfwwRUC?fife=w80-h100)
Author: Bo Pi
Publisher:
ISBN:
Category : Calorimeters
Languages : en
Pages : 290
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