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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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 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 Ds And Ds Production In B Meson Decays And From Continuum E E Annihilation At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2002
Measurement Of Ds And Ds Production In B Meson Decays And From Continuum E E Annihilation At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
New measurements of D[sub s][sup+] and D*[sub s][sup+] meson production rates from B decays and from q[bar q] continuum events near the[Upsilon](4S) resonance are presented. Using 20.8 fb[sup -1] of data on the[Upsilon](4S) resonance and 2.6 fb[sup -1] off resonance, we find the inclusive branching fractions[Beta](B[yields] D[sub s][sup+]X)= (10.93[+-] 0.19[+-] 0.58[+-] 2.73)% and[Beta](B[yields] D*[sub s][sup+] X)= (7.9[+-] 0.8[+-] 0.7[+-] 2.0)%, where the first error is statistical, the second is systematic, and the third is due to the D[sub s][sup+][yields][phi][pi][sup+] branching fraction uncertainty. The branching fractions[Sigma][Beta](B[yields] D(*)[sub s][sup+][bar D](*))= (5.07[+-] 0.14[+-] 0.30[+-] 1.27)% and[Sigma][Beta](B[yields] D*[sub s][sup+][bar D](*))= (4.1[+-] 0.2[+-] 0.4[+-] 1.0)% are determined from the D(*)[sub s][sup+] momentum spectra.
Study Of Inclusive B And Bar B 0 Decays Toflavor Tagged D D S And Lambda C
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Author : B. Aubert
language : en
Publisher:
Release Date : 2006
Study Of Inclusive B And Bar B 0 Decays Toflavor Tagged D D S And Lambda C written by B. Aubert 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.
We report on a study of inclusive B{sup -} and {bar B}{sup 0} meson decays 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 231 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 charm particle in the rest of the event. From the measured branching fractions of these decays, we infer the number of charm and anti-charm particles per {bar B} decay, separately for charged and neutral parents. We derive the total charm yield per B{sup -} decay, n{sub c}{sup -} = 1.202 {+-} 0.023 {+-} 0.040{sub -0.029}{sup +0.035}, and per {bar B}{sup 0} decay, n = 1.193 {+-} 0.030 {+-} 0.034{sub -0.035}{sup +0.044} where the first uncertainty is statistical, the second is systematic, and the third reflects the charm branching-fraction uncertainties. We also present the charm momentum distributions measured in the {bar B} rest frame.
Measurement Of B Subscript S 0 To D Subscript S D Subscript S And Determination Of The B Subscript S B Bar Subscript S Width Difference Delta Gamma Subscript S Using E E Collisions
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Author : Sevda Esen
language : en
Publisher:
Release Date : 2012
Measurement Of B Subscript S 0 To D Subscript S D Subscript S And Determination Of The B Subscript S B Bar Subscript S Width Difference Delta Gamma Subscript S Using E E Collisions written by Sevda Esen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
We present the results of a study of the decays Bs0 -> Ds()+ Ds()- with 121.4 f-1 of data collected with the Belle detector at the KEKB asymmetric energy e^+e- collider running on the [Upsilon](5S) resonance. Using fully reconstructed Bs0 mesons, we measure branching fractions to beB(Bs0 -> Ds^+ Ds- ) =(0.58+0.11-0.09±0.13)%, B(Bs0 -> Ds± Ds)= (1.8 ±0.2 ±0.4)%, andB(Bs0 -> Ds*+ Ds*- ) = (2.0 ±0.3 ±0.5)%;the sum isB(Bs0 -> Ds(+)+ Ds(+)- ) = (4.3 ±0.4 ±1.0)%. Assuming Bs0 -> Ds(+)+ Ds(+)- saturates decays to CP-even final states and taking CP violation to be negligibly small, we obtain [Delta][Gamma]s/[Gamma]swhere [Delta][Gamma]s is the difference in widths between the two Bs - Bs mass eigenstates and [Gamma]s is the mean decay width. Our result is [Delta][Gamma]s/[Gamma]s= 0.090 ±0.009 (stat.) +0.023-0.022 (syst.).
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.
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.
Morelly
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Author :
language : en
Publisher:
Release Date : 1971
Morelly written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with categories.
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.
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$-\atop{s}$].