![Determination of the Branching Ratios B̄0→D*+D*S- and DS→ _Ph63Π [Phi Pi] PDF](https://books.google.com/books/content/images/frontcover/ZYrDzQEACAAJ?fife=w80-h100)
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Languages : en
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Determination of the Branching Ratios B̄0→D*+D*S- and DS→ _Ph63Π [Phi Pi]
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Languages : en
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Measurement of B0-]Ds(*)+D*- Branching Fractions and B0-]Ds*+D*- Polarization with a Partial Reconstruction Technique
![Measurement of B0-]Ds(*)+D*- Branching Fractions and B0-]Ds*+D*- Polarization with a Partial Reconstruction Technique PDF](https://books.google.com/books/content/images/frontcover/TpQGkAEACAAJ?fife=w80-h100)
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Languages : en
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The authors present a study of the decays B[sup 0][yields] D[sub s][sup (*)+] D*[sup -], using 20.8 fb[sup -1] of e[sup+]e[sup -] annihilation data recorded with the BABAR detector. The analysis is conducted with a partial reconstruction technique, in which only the D[sub s][sup (*)+] and the soft pion from the D*[sup -] decay are reconstructed. They measure the branching fractions[Beta](B[sup 0][yields] D[sub s][sup (*)+] D*[sup -])= (1.03[+-] 0.14[+-] 0.13[+-] 0.26)% and[Beta](B[sup 0][yields] D[sub s][sup (*)+] D*[sup -])= (1.97[+-] 0.15[+-] 0.30[+-] 0.49)%, where the first error is statistical, the second is systematic, and the third is the error due to the D[sub s][sup+][yields][phi][pi][sup+] branching fraction uncertainty. From the B[sup 0][yields] D[sub s][sup (*)+] D*[sup -] angular distributions, they measure the fraction of longitudinal polarization[Lambda][sub L]/[Lambda]= (51.9[+-] 5.0[+-] 2.8)%, which is consistent with theoretical predictions based on factorization.
Measurement of the Branching Fraction Bs-]Ds(*)Ds(*) Using the D0 Detector at Fermilab
![Measurement of the Branching Fraction Bs-]Ds(*)Ds(*) Using the D0 Detector at Fermilab PDF](https://books.google.com/books/content/images/frontcover/jPvJnQAACAAJ?fife=w80-h100)
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Languages : en
Pages : 114
Book Description
This thesis describes a measurement of the branching fraction Br(B°{sub s} → D{sup (*)}{sub s} D{sup (*)}{sub s}) made using a data sample collected from proton-antiproton collisions at a centre-of-mass energy of 1.96 TeV, corresponding to approximately 1.3 fb−1 of integrated luminosity collected in 2002--2006 by the D0 detector at the Fermilab Tevatron Collider. One D{sup (*)}{sub s} meson was partially reconstructed in the decay D{sub s} → [phi][mu][nu], and the other D{sup (*)}{sub s} meson was identified using the decay D{sub s} → [phi][pi] where no attempt was made to distinguish D{sub s} and D{sup *}{sub s} states. The resulting measurement is Br(B°{sub s} → D{sup (*)}{sub s} D{sup (*)}{sub s}) = 0.039{sup +0.019}{sub -0.017}(stat){sup +0.016}{sub -0.015}(syst). This was subsequently used to estimate the width difference [Delta][Gamma]{sup CP}{sub s} in the B°{sub s}-{anti B}°{sub s} system: [Delta][Gamma]{sup CP}{sub s}/[Gamma]{sub s} = 0.079{sup +0.038}{sub -0.035}(stat){sup +0.031}{sub 0.030}(syst), and is currently one of the most precise estimates of this quantity and consistent with the Standard Model.
Measurement Of The Branching Fraction For D (exp(+) -> K Exp(0) Sub(L) Pi Exp(+)
Author: Steven Richard StroineyPublisher:
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Languages : en
Pages : 0
Book Description
Preventie van psychische stoornissen
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Languages : en
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Measurement of the Ratio of Branching Fractions [Beta](B0s --> D−s Ds)
 PDF](https://books.google.com/books/content/images/frontcover/ons9twAACAAJ?fife=w80-h100)
Author: Boris IyutinPublisher:
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Languages : en
Pages : 154
Book Description
Partial Reconstruction of Bz to Dss Dstarm Decays and Measurement of the Ds to Phi Pip Branching Fraction
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Languages : en
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Preliminary results are presented on the branching fractions B (B[sup 0] --> D[sub s][sup *+]D[sup *-]) and B (D[sub s][sup +] --> [phi][pi][sup +]), based on a data sample of approximately 124 x 10[sup 6] B[bar B] events collected by the BABAR detector at the PEP-II e[sup +]e[sup -] B-factory. B (B[sup 0] --> D[sub s][sup *+]D[sup *-]) is measured selecting neutral B meson decays to the final state D[sup *-]D[sub s][sup *+] with partial reconstruction of the D[sub s][sup *+], in which only the D[sup *-] and the soft photons from the decay D[sub s][sup *+] --> D[sub s][sup +][gamma] are reconstructed. The branching fraction product B (B[sup 0] --> D[sub s][sup *+]D[sup *-]) [center-dot] B(D[sub s][sup +] --> [phi][pi][sup +]) is measured via a complete reconstruction of the whole decay chain. Comparing these two measurements provides a model-independent determination of the B (D[sub s][sup +] --> [phi][pi][sup +]) branching fraction. The authors obtain the following preliminary results: B(B[sup 0] --> D[sub s][sup *+]D[sup *-]) = (1.85 [+-] 0.09 [+-] 0.16)%; B(D[sub s][sup +] --> [phi][pi][sup +]) = (4.71 [+-] 0.47 [+-] 0.35)% where the first error in each measurement is statistical, the second systematic.
MEASUREMENT OF B0 ---] D(S)(*)+D*- BRANCHING FRACTIONS AND POLARIZATION IN THE DECAY B0 ---] DS(*FILE) WITH A PARTIAL RECONSTRUCTION TECHNIQUE.
![MEASUREMENT OF B0 ---] D(S)(*)+D*- BRANCHING FRACTIONS AND POLARIZATION IN THE DECAY B0 ---] DS(*FILE) WITH A PARTIAL RECONSTRUCTION TECHNIQUE. PDF](https://books.google.com/books/content/images/frontcover/dnoBkAEACAAJ?fife=w80-h100)
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Languages : en
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We present measurements of the decays B[sup 0][yields] D[sub s][sup (*)+] D*[sup -], using data recorded by the BABAR detector in 1999 and 2000, consisting of 20.8 fb[sup -1]. The analysis is conducted with a partial reconstruction technique, in which only the D[sub s][sup (*)+] and the soft pion from the D*[sup -] decay are reconstructed. From the observed rates, we measure the branching fractions[Beta](B[sup 0][yields] D[sub s][sup+] D*[sup -])= (1.03[+-] 0.14[+-] 0.13[+-] 0.26)% and[Beta](B[sup 0][yields] D*[sub s][sup+] D*[sup -])= (1.97[+-] 0.15[+-] 0.30[+-] 0.49)%, where the first error is statistical, the second is systematic, and the third is the error due to the D[sub s][sup+][yields][phi][pi][sup+] branching fraction uncertainty. From the[Beta](B[sup 0][yields] D*[sub s][sup+] D*[sup -]) angular distributions, we measure the fraction of longitudinal polarization[Lambda][sub L]/[Lambda]= (51.9[+-] 5.0[+-] 2.8)%, which is consistent with the theoretical prediction, based on factorization. These results are preliminary.
Measurement of the Ratios of Branching Fractions B(B(s)0 ---] D(s)- Pi+)
![Measurement of the Ratios of Branching Fractions B(B(s)0 ---] D(s)- Pi+) PDF](https://books.google.com/books/content/images/frontcover/IO0CwgEACAAJ?fife=w80-h100)
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Languages : en
Pages : 7
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Measurement of the Inclusive Branching Fraction Tau± [arrow] Nu Tau Pi±pi° + Neutral Meson(s)
![Measurement of the Inclusive Branching Fraction Tau± [arrow] Nu Tau Pi±pi° + Neutral Meson(s) PDF](https://books.google.com/books/content/images/frontcover/6D1IAQAAMAAJ?fife=w80-h100)
Author: William Walton MosesPublisher:
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Languages : en
Pages : 222
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