Measurement Of The Ratio Of Branching Fractions Beta B0s D S Ds

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Measurement Of The Ratio Of Branching Fractions Beta B0s D S Ds

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Author : Boris Iyutin
language : en
Publisher:
Release Date : 2007

Measurement Of The Ratio Of Branching Fractions Beta B0s D S Ds written by Boris Iyutin and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

Measurement Of The Ratios Of Branching Fractions B Bs Ds Pi Pi Pi

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Author :
language : en
Publisher:
Release Date : 2006

Measurement Of The Ratios Of Branching Fractions B Bs Ds Pi Pi Pi written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

Using 355 pb−1 of data collected by the CDF II detector in p{bar p} collisions at √s = 1.96 TeV at the Fermilab Tevatron, they study the fully reconstructed hadronic decays B{sub (s)}° → D{sub (s)}−? and B{sub (s)}° → D{sub (s)}−?+?+?−. They present the first measurement of the ratio of branching fractions?(B{sub s}° → D{sub s}−?+?+?−)/?(B° → D−?+?+?−) = 1.05 ± 0.10(stat.) ± 0.22(syst.). They also update their measurement of?(B{sub s}° → D{sub s}−?+)/?(B° → D−?+) to 1.13 ± 0.08(stat.) ± 0.23(syst.) improving the statistical uncertainty by more than a factor of two. They find?(B{sub s}° → D{sub s}−?+) = [3.8 ± 0.3(stat.) ± 1.3(syst.)] x 10−3 and?(B{sub s}° → D{sub s}−?+?+?−) = [8.4 ± 0.8(stat.) ± 3.2(syst.)] x 10−3.

Measurement Of The Ratios Of The Branching Fractions Beta B0 Sigma D Sigma Pi Pi Pi Beta B0 D Pi Pi Pi And Beta B0 Sigma D Sigma Pi Beta B0 D Pi Pi Pi With The Cdf Detector

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Author : Arkadiy Bolshov
language : en
Publisher:
Release Date : 2007

Measurement Of The Ratios Of The Branching Fractions Beta B0 Sigma D Sigma Pi Pi Pi Beta B0 D Pi Pi Pi And Beta B0 Sigma D Sigma Pi Beta B0 D Pi Pi Pi With The Cdf Detector written by Arkadiy Bolshov and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

We present the measurement of the ratios of branching fractions B... to B..., and B... to B... We analyze data taken with the CDF II detector that corresponds to an integrated luminosity of 355 pb - 1 in pp collisions at ... TeV at the Fermilab Tevatron. Using a novel displaced track trigger we reconstruct 494 ± 28 B... decays, 8098 ± 114 B... decays, 159 ± 17 B... decays, and 3288 ± 76 B... decays. Using the world average value of the ... production ratio fs/fd = 0.259 ± 0.038, we determine the ratios of branching fractions ... where the uncertainties labeled BR and PR refer to the uncertainty on the D meson branching fractions and the production ratio fs/fd, respectively.

Measurement Of The Branching Fraction Br Bos Ds Using The Do Detector At Fermilab

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Author : James William Walder
language : en
Publisher:
Release Date : 2008

Measurement Of The Branching Fraction Br Bos Ds Using The Do Detector At Fermilab written by James William Walder and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

Measurement Of Branching Fraction And Polarization In The Decay Beta 0 Right Arrow Rho Rho

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Author : Yuriy V. Groysman
language : en
Publisher:
Release Date : 2008

Measurement Of Branching Fraction And Polarization In The Decay Beta 0 Right Arrow Rho Rho written by Yuriy V. Groysman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

Measurement Of The Branching Fraction Bs Ds Ds Using The D0 Detector At Fermilab

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Author :
language : en
Publisher:
Release Date : 2009

Measurement Of The Branching Fraction Bs Ds Ds Using The D0 Detector At Fermilab written by 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.

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 Beta B Sup 0 Yields D Sub S Sup D Sup And Determination Of The D Sub S Sup Yields Phi Pi Sup Branching Fraction With A Partial Reconstruction Method

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Author :
language : en
Publisher:
Release Date : 2003

Measurement Of Beta B Sup 0 Yields D Sub S Sup D Sup And Determination Of The D Sub S Sup Yields Phi Pi Sup Branching Fraction With A Partial Reconstruction Method written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

The authors present model-independent measurements of the branching fractions[Beta](B[sup 0][yields] D*[sub s][sup+] D*[sup -]) and[Beta](D[sub s][sup+][yields][phi][pi][sup+]) based on 19.3 fb[sup -1] of data collected by the BABAR detector at the PEP-II e[sup+]e[sup -] B Factory. Neutral B-meson decays to the D*[sub s][sup+]D*[sup -] final state are selected with a partial reconstruction of the D*[sub s][sup+]; that is, only the D*[sup -] and the soft photon from the decay D*[sub s][sup+][yields] D[sub s][sup+][gamma] are reconstructed. The branching fraction[Beta](B[sup 0][yields] D*[sub s][sup+] D*[sup -]) is extracted from these event yields, while[Beta](D[sub s][sup+][yields][phi][pi][sup+]) is determined by combining this result with a previous measurement of the product[Beta](B[sup 0][yields] D*[sub s][sup+] D*[sup -]) x[Beta](D[sub s][sup+][yields][phi][pi][sup+]) with partial reconstruction of the D*[sup -]. They obtain the following preliminary results:[Beta](B[sup 0][yields] D*[sub s][sup+] D*[sup -])= (1.50[+-] 0.16[+-] 0.12)%, [Beta](D[sub s][sup+][yields][phi][pi][sup+])= (4.7[+-] 0.6[+-] 0.8)% where the first error is statistical, and the second systematic.

Measurement Of Branching Fractions For Beta Pi Pi Kappa Pi And Kappa Kappa Decays

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Author : BELLE
language : en
Publisher:
Release Date : 2001

Measurement Of Branching Fractions For Beta Pi Pi Kappa Pi And Kappa Kappa Decays written by BELLE and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.

Measurement Of The Beta Decay Branching Ratio Of 17ne Into The First Excited State Of 17f

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Author :
language : en
Publisher:
Release Date : 1996

Measurement Of The Beta Decay Branching Ratio Of 17ne Into The First Excited State Of 17f written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Beta decay categories.

Measurement Of The Branching Fraction Br B0s U2192 Ds Ds Using The D0 Detector At Fermilab

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Author :
language : en
Publisher:
Release Date : 2008

Measurement Of The Branching Fraction Br B0s U2192 Ds Ds Using The D0 Detector At Fermilab written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

This thesis describes a measurement of the branching fraction Br (B0s → Ds*Ds*) 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*s meson was partially reconstructed in the decay Ds → ??v, and the other D*s meson was identified using the decay Ds → ?? where no attempt was made to distinguish Ds and D*s states. The resulting measurement is Br (B0s → Ds*Ds*) = 0.039+0.019-0.017(stat) +0.016-0.015(syst). This was subsequently used to estimate the width difference ??CPs in the B0s-$ar{B}$0s system: ??CPs/?s = 0.079+0.038-0.035(stat)+0.031-0.030(syst), and is currently one of the most precise estimates of this quantity and consistent with the Standard Model.