Measurement Of The Exclusive And Inclusive Branching Fractions Of B 0 S To D S D S Decays At Cdf And Its Implications On The Decay Width Difference In The B 0 S B 0 S Meson System

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Measurement Of The Exclusive And Inclusive Branching Fractions Of B 0 S To D S D S Decays At Cdf And Its Implications On The Decay Width Difference In The B 0 S B 0 S Meson System

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Author :
language : en
Publisher:
Release Date : 2011

Measurement Of The Exclusive And Inclusive Branching Fractions Of B 0 S To D S D S Decays At Cdf And Its Implications On The Decay Width Difference In The B 0 S B 0 S Meson System written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.

The purpose of this thesis is threefold: Firstly, new measurements of both the exclusive and semi-inclusive partial decay widths of $B^{0}_{s} \to D^{(*)+}_{s}D^{(*)-}_{s}$ meson decays are presented. Secondly, the feasibility of extracting the unknown polarization components in $B^{0}_{s} \to D^{(*)+}_{s}D^{(*)-}_{s}$ by partial reconstruction of this pseudo-scalar to vector-vector decay in a Monte Carlo driven analysis scheme is studied. Finally, based on the suggestions contributed by the theory community this study discusses how a measurement of the branching fraction of semi-inclusive decays $B^{0}_{s} \to D^{(*)+}_{s}D^{(*)-}_{s}$ can contribute to gain insight about the relative decay width di erence in the B$0\atop{s}$--B$0\atop{s}$ meson system.

Measurement Of The Exclusive And Inclusive Branching Fractions Of B0s D S Ds Decays At Cdf And Its Implications On The Decay Width Difference In The B0s B 0s Meson System

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Author : Dominik Horn
language : en
Publisher:
Release Date : 2011

Measurement Of The Exclusive And Inclusive Branching Fractions Of B0s D S Ds Decays At Cdf And Its Implications On The Decay Width Difference In The B0s B 0s Meson System written by Dominik Horn and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.

Measurement Of Neutral B Decay Branching Fractions To K Sub S Sup 0 Pi Sup Pi Sup Final States

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Author :
language : en
Publisher:
Release Date : 2004

Measurement Of Neutral B Decay Branching Fractions To K Sub S Sup 0 Pi Sup Pi Sup Final States written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

The branching fractions for B[sup 0] --> K[sup 0][pi][sup +][pi][sup -], B[sup 0] --> K*[sup +][pi][sup -] and B[sup 0] --> D[sup -]( --> K[sub s][sup 0][pi][sup -])[pi][sup +] decaying to a K[sub s][sup 0][pi][sup +][pi][sup -] state have been measured and agree with previous measurements. The direct CP violating parameter A[sub K*[pi]] was measured for the decay B[sup 0] --> K*[sup +][pi][sup -] and is in agreement with the CLEO measurement, with no evidence of CP violation with the statistics used. Using larger datasets, one can extract amplitudes and relative phases of the resonant contributions to the Dalitz plot, with the possibility to observe new B-meson decays.

Measurement Of The Branching Fractions For Inclusive B Sup And Bar B Sup 0 Decays To Flavor Tagged D D Sub S And Lambda Sub C

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Author :
language : en
Publisher:
Release Date : 2004

Measurement Of The Branching Fractions For Inclusive B Sup And Bar B Sup 0 Decays To Flavor Tagged D D Sub S And Lambda Sub C written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

The authors report on the inclusive branching fractions of B[sup -] and of [bar B][sup 0] mesons decaying to D[sup 0]X, [bar D][sup 0]X, D[sup +]X, D[sup -]X, D[sub s][sup +]X, D[sub s][sup -]X, [Lambda][sub c][sup +]X, [bar [Lambda]][sub c][sup -]X, based on a sample of 88.9 million B[bar B] events recorded with the BABAR detector at the [Upsilon](4S) resonance. Events are selected by completely reconstructing one B and searching for a reconstructed charmed particle in the rest of the event. The authors measure the number of charmed and of anit-charmed particles per B decay and derive the total charm yield per B[sup -] decay, n[sub c][sup -] = 1.313 [+-] 0.037 [+-] 0.037 [+-] 0.062[sub -0.043][sup +0.063], and per [bar B][sup 0] decay, n[sub c][sup 0] = 1.276 [+-] 0.062 [+-] 0.058[sub -0.046][sup +0.066] where the first uncertainty is statistical, the second is systematic, and the third reflects the charm branching-fraction uncertainties.

Measurement Of The Branching Fractions Of B To D S D S Meson Decays At Cdf Ii

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Author :
language : en
Publisher:
Release Date : 2008

Measurement Of The Branching Fractions Of B To D S D S Meson Decays At Cdf Ii 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.

The variety of phenomena occurring in the world surrounding us always has been stirring up curiosity of men. Based on empirical observations of nature and on experiments becoming more and more complex in the course of time, a variety of models concerning the structure of matter have been conceived. In this analysis Br[Bs→D$+\atop{s}$D$-\atop{s}$] is determined by measuring the relative branching fraction Br[Bs→D$+\atop{s}$D$-\atop{s}$]/Br[B0→D$+\atop{s}$D$-\atop{s}$].

An Inclusive Measurement Of The Branching Fraction For The B U2192 S Using The Recoil Of Fully Reconstructed B Meson Decays

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Author : Clare Louise Brown
language : en
Publisher:
Release Date : 2005

An Inclusive Measurement Of The Branching Fraction For The B U2192 S Using The Recoil Of Fully Reconstructed B Meson Decays written by Clare Louise Brown and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.

Partial Reconstruction Of Bz To Dss Dstarm Decays And Measurement Of The Ds To Phi Pip Branching Fraction

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Author :
language : en
Publisher:
Release Date : 2004

Partial Reconstruction Of Bz To Dss Dstarm Decays And Measurement Of The Ds To Phi Pip Branching Fraction written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

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.

Study Of B 0 S Rightarrow D S D S And B 0 S Rightarrow Phi Phi Decays At Cdf

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Author :
language : en
Publisher:
Release Date : 2009

Study Of B 0 S Rightarrow D S D S And B 0 S Rightarrow Phi Phi Decays At Cdf 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.

Under certain theoretical assumptions, the branching fraction of B{sub s}° 2!D{sub s}{sup (*)+}D{sub s}{sup (*)-} is directly sensitive to the relative decay width difference [Delta][Lambda]{sub s}{sup CP}/[Lambda]{sub s} in the B{sub s}° system, which is predicted to be sizable in the standard model. Using approximately 4 fb−1 of data collected by the CDF II detector at the Tevatron p{bar p} collider, the CDF collaboration is currently performing an exclusive selection of B{sub s}° 2!D{sub s}{sup (*)+}D{sub s}{sup (*)-} signal candidates in several hadronic modes in order to provide a new branching fraction measurement. In contrast to former analyses, we start to have sensitivity in disentangling D{sub s}{sup (*)+}D{sub s}{sup (*)-}, enabling us to measure the branching fractions of B{sub s}° 2!D{sub s}D{sub s}−, B{sub s}° 2!D{sub s}{sup (*)+}D{sub s}− and B{sub s}° 2!D{sub s}{sup (*)+}D{sub s}{sup (*)-} separately. Yet another interesting mode is the decay of the B{sub s}° into a [phi] pair. This is a vector-vector decay dominated by the b 2!s{ovr ss} penguin transition, which is a sensitive probe for possible new physics effects. Here we present a new measurement of the branching fraction based on a clean sample of about 300 B{sub s}° 2![phi][phi] signal events in a dataset with an integrated luminosity of 2.9 fb−1.

Crippen Wedi Ei Gondemnio I Farw Am Lofruddio A Darnio Ei Wraig A I Chladdu Yn Seler Ei Dy

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Author :
language : en
Publisher:
Release Date : 18??

Crippen Wedi Ei Gondemnio I Farw Am Lofruddio A Darnio Ei Wraig A I Chladdu Yn Seler Ei Dy written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 18?? with Capital punishment categories.

B Physics

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Author : Vyacheslav Krutelyov
language : en
Publisher:
Release Date : 2004

B Physics written by Vyacheslav Krutelyov and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

We present results and prospects for searches for rare B and D meson decays with final state dimuons, including B{sub s}{sup 0} {yields} {mu}{sup +}{mu}{sup -}, B{sub d}{sup 0} {yields} {mu}{sup +}{mu}{sup -}, and D{sup 0} {yields} {mu}{sup +}{mu}{sup -}. B0 Upper limits on the branching fractions are compared to previous CDF measurements, recent results from the B factories and theoretical expectations. We also report on new measurements of production and decay properties of the X(3872) particle, discovered in 2003 by the Belle Collaboration. New results on the measurement of the relative branching fraction for the Cabibbo suppressed decay B{sup +} {yields} J/{psi}{pi}{sup +} {Beta}(B{sup +} {yields} J/{psi}{pi}{sup +})/{Beta}(B{sup +} {yields} J/{psi}K{sup +}) are presented too. The presented results are based on the analyses of 70 to 220 pb{sup -1} of data collected by the CDF II detector in p{bar p} collisions at {radical}s = 1.96 GeV at Fermilab Tevatron.