Measurement of Time-Dependent CP Asymmetry in B° 2!D*{sup {+-}[pi]{sup -+}} Decays and Constraints on PDF Download
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![Measurement of Time-Dependent CP Asymmetry in B° 2!D*{sup {+-}[pi]{sup -+}} Decays and Constraints on PDF](https://books.google.com/books/content/images/frontcover/FsdrAQAACAAJ?fife=w150-h200)
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Languages : en
Pages : 16
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We present a preliminary measurement of time-dependent CP-violating asymmetries in fully reconstructed B° → D*{sup {+-}[pi]{sup -+}} decays in a data sample of approximately 88 million [Upsilon](4S) → B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. We interpret the results in terms of the angles of the Cabibbo-Kobayashi-Maskawa unitarity triangle, and set the bound
![Measurement of Time-Dependent CP Asymmetry in B° 2!D*{sup {+-}[pi]{sup -+}} Decays and Constraints on PDF](https://books.google.com/books/content/images/frontcover/FsdrAQAACAAJ?fife=w80-h100)
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Languages : en
Pages : 16
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Book Description
We present a preliminary measurement of time-dependent CP-violating asymmetries in fully reconstructed B° → D*{sup {+-}[pi]{sup -+}} decays in a data sample of approximately 88 million [Upsilon](4S) → B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. We interpret the results in terms of the angles of the Cabibbo-Kobayashi-Maskawa unitarity triangle, and set the bound
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Languages : en
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![MEASUREMENT OF TIME-DEPENDENT CP ASYMMETRIES AND CONSTRAINTS ON SIN(2 [beta] + [gamma] WITH PARTIAL RECONSTRUCTION OF B[sup 0] --] D*[sup [-+][pi][sup [+-] DECAYS. PDF](https://books.google.com/books/content/images/frontcover/A0MDkAEACAAJ?fife=w80-h100)
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Languages : en
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The authors present a preliminary measurement of the time-dependent CP-violating asymmetry in decays of neutral B mesons to the final states D*[sup [-+]][pi][sup [+-]], using approximately 178 million B[bar B] events recorded by the BABAR experiment at the PEP-II d[sup +]e[sup -] storage ring. Events containing these decays are selected with a partial reconstruction technique, in which only the high-momentum [pi][sup [+-]] from the B decay and the low-momentum [pi][sup [-+]]. from the D*[sup [-+]]. decay are used. They measure the amplitude of the asymmetry to be -0.041 [+-] 0.016 (stat.) [+-] 0.010 (syst.) and determine bounds on sin(2[beta]+[gamma]).
Author: Markus Röhrken
Publisher: Springer Science & Business Media
ISBN: 3319007262
Category : Science
Languages : en
Pages : 205
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Book Description
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.
![Measurement of Time-dependent CP Asymmetries in B^0 --] K^0_s K^0_s K^0_s Decays PDF](https://books.google.com/books/content/images/frontcover/vWm7jwEACAAJ?fife=w80-h100)
Author: B. Aubert
Publisher:
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Category :
Languages : en
Pages : 17
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The authors present an updated measurement of the time-dependent CP-violating asymmetry in B{sup 0} {yields} K{sub S}{sup 0}K{sub S}{sup 0}K{sub S}{sup 0} decays based on 347 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. The authors obtain the CP asymmetries S{sub f} = -0.66 {+-} 0.26 {+-} 0.08 and C{sub f} = -0.14 {+-} 0.22 {+-} 0.05, where the first uncertainties are statistical and the second systematic.
![Measurements of Time-dependent CP Asymmetries in B0 --] D(*)+D(*)- Decays PDF](https://books.google.com/books/content/images/frontcover/ClV_AQAACAAJ?fife=w80-h100)
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Category :
Languages : en
Pages : 13
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We present new measurements of time-dependent CP asymmetries for B° --> D{sup (*)+}d{sup (*)-} decays using (467 ± 5) x 106 B{bar B} pairs collected with the BABAR detector located at the PEP-II B Factory at the Stanford Linear Accelerator Center. We determine the CP-odd fraction of the B° --> D*D*− decays to be R(up tack) = 0.158 ± 0.028 ± 0.006 and find CP asymmetry parameters for the CP-even component of the decay S+ = -0.76 ± 0.16 ± 0.04 and C+ = 0.00 ± 0.12 ± 0.02. We measure S = -0.63±0.36±0.05 and C = -0.07±0.23±0.03 for B° --> DD−, S = -0.62±0.21±0.03 and C = 0.08 ± 0.17 ± 0.04 for B° --> D*+D−, and S = -0.73 ± 0.23 ± 0.05 and C = 0.00 ± 0.17 ± 0.03 for B° --> D+D*−. For the B° --> D*{sup ±}D{sup {-+}} decays, we also determine the CP-violating asymmetry A = 0.008 ± 0.048 {+-} 0.013. In each case, the first uncertainty is statistical and the second is systematic. The measured values for the asymmetries are all consistent with the Standard Model.
![Measurement of Time-dependent CP Asymmetries in the Decays B --] D*[pi] Using a Partial Reconstruction Technique PDF](https://books.google.com/books/content/images/frontcover/OsSTAQAACAAJ?fife=w80-h100)
Author: Seema Bahinipati
Publisher:
ISBN:
Category :
Languages : en
Pages : 218
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Author: Saša Fratina
Publisher:
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Category :
Languages : en
Pages : 127
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![Measurement of Time-Dependent CP Asymmetry in B0-]ccbar K(*)0 Decays PDF](https://books.google.com/books/content/images/frontcover/tqelAQAACAAJ?fife=w80-h100)
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Category :
Languages : en
Pages : 15
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Book Description
The authors present updated measurements of time-dependent Cp asymmetries in fully reconstructed neutral B decays containing a charmonium meson. The measurements reported here use a data sample of (465 ± 5) x 106 [Upsilon](4S) 2!B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric energy ee− storage rings operating at the SLAC National Accelerator Laboratory. The time-dependent CP asymmetry parameters measured from J/[psi] K{sub S}°, J/[psi]K{sub L}°, [psi](2S)K{sub S}°, [eta]{sub c}K{sub S}°, [chi]{sub c1}K{sub S}° and J/[psi] K*(892)° decays are: C{sub f} = 0.024 ± 0.020(stat) ± 0.016(syst) and -[eta]{sub f}S{sub f} = 0.687 ± 0.028(stat) ± 0.012(syst).
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ISBN:
Category :
Languages : en
Pages : 418
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Book Description
In this thesis work we have measured the following upper limits at 90% of confidence level, for B meson decays (in units of 10-6), using a statistics of 465.0 x 106 B$\bar{B}$ pairs: [beta](B0 2![eta]K0)
