Meaurement Of Cp Content And Time Dependent Cp Violation In B0d D Decays PDF Download
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Author | : |
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Total Pages | : 151 |
Release | : 2009 |
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Download Measurement of CP Content and Time-Dependent CP Violation in B0 --] D*+D*- Decays Book in PDF, ePub and Kindle
Author | : Saša Fratina |
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Total Pages | : 127 |
Release | : 2007 |
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Download Measurement of time dependent CP violation in B^0 -> D^+D^- decays Book in PDF, ePub and Kindle
Author | : Markus Röhrken |
Publisher | : Springer Science & Business Media |
Total Pages | : 205 |
Release | : 2013-10-17 |
Genre | : Science |
ISBN | : 3319007262 |
Download Time-Dependent CP Violation Measurements Book in PDF, ePub and Kindle
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.
Author | : Jacob M. Anderson |
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Total Pages | : |
Release | : 2008 |
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Download Meaurement of CP Content and Time-dependent CP Violation in B0]D*+D*̄̄̄̄- Decays Book in PDF, ePub and Kindle
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Total Pages | : 151 |
Release | : 2008 |
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Download Measurement of CP Content and Time-Dependent CP Violation in B0 {u2192} D*+D*- Decays Book in PDF, ePub and Kindle
This dissertation presents the measurement of the Cp-odd fraction and time-dependent CP violation parameters for the B0 → D*+ D*- decay. These results are based on the full BABAR dataset of (467 ± 5) x 106 B$ar{B}$ pairs collected at the PEP-II B Factory at the Stanford Linear Accelerator Center. An angular analysis finds that the CP-odd fraction of the B0 →D*+ D*- decay is Rperpendicular = 0.158 ± 0.028 ± 0.006, where the first uncertainty is statistical, and the second is systematic. A fit to the flavor-tagged, time-dependent, angular decay rate yields C+ = 0.02 ± 0.12 ± 0.02; Cperpendicular = 0.41 ± 0.50 ± 0.08; S+ = -0.76 ± 0.16 ± 0.04; S perpendicular = -1.81 ± 0.71 ± 0.16, for the CP-odd (perpendicular) and CP-even (plus) contributions. Constraining these two contributions to be the same results in C = 0.047 ± 0.091 ± 0.019; S = -0.71 ± 0.16 ± 0.03. These measurements are consistent with the Standard Model and with measurements of sin2? from B0 → (c$ar{c}$)K0 decays.
Author | : Kim Vervink |
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Total Pages | : 177 |
Release | : 2008 |
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Download Measurement of the CP-odd Fraction and Time-dependent CP Violation in the Decay B0 -> D*+D*- at Belle Book in PDF, ePub and Kindle
Author | : |
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Total Pages | : 182 |
Release | : 2012 |
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Download Measurement of CP Violation in B0d Mixing Using B0d 2!D*-[mu]+([nu][mu]X Decays Book in PDF, ePub and Kindle
This thesis describes the measurement of the time-integrated semileptonic charge asymmetry in B0d mixing, ad sl, using the decay chain of B0d! D*-[mu]+([nu][mu]), D*-! D0[pi]-, D0! K+[pi]-. Decay candidates are reconstructed from 10.4 fb-1 of data recorded by the DØ detector at Fermilab's Tevatron p$\bar{p}$ collder during the 2002- 2011 'RunII' data taking period. Yields are extracted using a 2 minimising simultaneous binned fit where 490k D candidates are reconstructed. The measurements presented in this thesis was made possible due to sophisticated online and offline reconstruction software, precise tracking systems, and the first-order background asymmetry negating magnet polarity reversal of the DØ detector.
Author | : Markus Rohrken |
Publisher | : |
Total Pages | : 212 |
Release | : 2013-10-31 |
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ISBN | : 9783319007274 |
Download Time-Dependent Cp Violation Measurements Book in PDF, ePub and Kindle
Author | : Matthieu Kecke |
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Total Pages | : |
Release | : 2019* |
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Download Time-dependent Measurement of CP Violation and Determination of the CKM Angle Γ Using B0s → D±sK∓π+π- Decays with the LHCb Experiment Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 182 |
Release | : 2012 |
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Download Measurement of CP Violation in B0d Mixing Using B0d {u2192} D*-?+(??)X Decays Book in PDF, ePub and Kindle
This thesis describes the measurement of the time-integrated semileptonic charge asymmetry in B0d mixing, ad sl, using the decay chain of B0d ! D*-?+(??), D*- ! D0?-, D0 ! K+?-. Decay candidates are reconstructed from 10.4 fb-1 of data recorded by the DØ detector at Fermilab’s Tevatron p$ar{p}$ collder during the 2002- 2011 ‘RunII’ data taking period. Yields are extracted using a 2 minimising simultaneous binned fit where 490k D candidates are reconstructed. The measurements presented in this thesis was made possible due to sophisticated online and offline reconstruction software, precise tracking systems, and the first-order background asymmetry negating magnet polarity reversal of the DØ detector.