Measurement Of Time Dependent Cp Asymmetries Inb0 D Pi And B0 Drho Decays

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Measurement Of Time Dependent Cp Asymmetries Inb0 D Pi And B0 Drho Decays

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Author :
language : en
Publisher:
Release Date : 2006

Measurement Of Time Dependent Cp Asymmetries Inb0 D Pi And B0 Drho Decays 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.

We present updated results on time-dependent CP asymmetries in fully reconstructed B° → D{sup (*)±}[pi]{sup {-+}} and B° → D{sup ±}[rho]{sup {-+}} decays in approximately 232 million [Upsilon](4S) → B{bar B} events collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. From a time-dependent maximum likelihood fit we obtain for the parameters related to the CP violation angle 2[beta] + [gamma]: a{sup D{pi}} = -0.010 ± 0.023 ± 0.007, c{sub lep}{sup D{pi}} = -0.033 ± 0.042 ± 0.012, a{sup D*{pi}} = -0.040 ± 0.023 ± 0.010, C{sub lep}{sup D*{pi}} = 0.049 ± 0.042 ± 0.015, a{sup D{rho}} = -0.024 ± 0.031 ± 0.009, c{sub lep}{sup D{rho}} = -0.098 {+-} 0.055 {+-} 0.018, where the first error is statistical and the second is systematic. Using other measurements and theoretical assumptions, we interpret the results in terms of the angles of the Cabibbo-Kobayashi-Maskawa unitarity triangle and find

Measurement Of Time Dependent Cp Asymmetries In B0 To D D Decays

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Author :
language : en
Publisher:
Release Date : 2005

Measurement Of Time Dependent Cp Asymmetries In B0 To D D Decays written by 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.

The authors present a first measurement of CP asymmetries in neutral B decays to DD−, and updated CP asymmetry measurements in decays to D*D− and D*−D+. They use fully-reconstructed decays collected in a data sample of (232 ± 3) x 106 [Upsilon](4S) 2!B{bar B} events in the BABAR detector at the PEp-II asymmetric-energy B Factory at SLAC. they determine the time-dependent asymmetry parameters to be S{sub D*+D−} = -0.54 ± 0.35 ± 0.07, C{sub D*+D−} = 0.09 ± 0.25 ± 0.06, S{sub D*−D{sup +}} = -0.29 ± 0.33 ± 0.07, C{sub D*−D{sup +}} = 0.17 ± 0.24 ± 0.04, S{sub D{sup +}D{sup -}} = -0.29 ± 0.63 ± 0.06, and C{sub D{sup +}D{sup -}} = 0.11 ± 0.35 ± 0.06, where in each case the first error is statistical and the second error is systematic.

Measurement Of Time Dependent Cp Asymmetry In B 2 D Sup Pi Sup Decays And Constraints On

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Author :
language : en
Publisher:
Release Date : 2003

Measurement Of Time Dependent Cp Asymmetry In B 2 D Sup Pi Sup Decays And Constraints On 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.

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 Cp Asymmetries In B0 Ks Pi0 Pi0 Decays

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Author : J. C. Chen
language : en
Publisher:
Release Date : 2005

Measurement Of Cp Asymmetries In B0 Ks Pi0 Pi0 Decays written by J. C. Chen 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.

The authors present a preliminary measurement of the time-dependent CP asymmetry for the neutral B-meson decay into the CP = +1 final state K{sub S}{sup 0}{pi}{sup 0}{pi}{sup 0}, with K{sub S}{sup 0} {yields} {pi}{sup +}{pi}{sup -} and {pi}{sup 0} {yields} {gamma}{gamma}. They use a sample of approximately 227 million B-meson pairs recorded at the {Upsilon}(4S) resonance by the BABAR detector at the PEP-II B-Factory at SLAC. From a maximum likelihood fit they extract the mixing-induced CP-violation parameter S{sub K{sub S}{sup 0}{pi}{sup 0}{pi}{sup 0}} = 0.84 {+-} 0.71(stat) {+-} 0.08(syst) and the direct CP-violation parameter C{sub K{sub S}{sup 0}}{pi}{sup 0}{pi}{sup 0} = 0.27 {+-} 0.52(stat) {+-} 0.13(syst), where the first uncertainty is statistical and the second systematic.

Measurement Of Time Dependent Cp Violating Asymmetries In B0 Ksksks Decays

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Author : J. C. Chen
language : en
Publisher:
Release Date : 2005

Measurement Of Time Dependent Cp Violating Asymmetries In B0 Ksksks Decays written by J. C. Chen 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.

The authors present preliminary measurements of the CP asymmetry parameters in B{sup 0} {yields} K{sub S}{sup 0}K{sub S}{sup 0}K{sub S}{sup 0} decays, reconstructing two of the K{sub S}{sup 0} into {pi}{sup +}{pi}{sup -} and one into {pi}{sup 0}{pi}{sup 0}. In a sample of 227 M B{bar B} pairs collected by the BABAR detector at the PEP-II B Factory at SLAC, they find the CP parameters to be S = -0.25{sub -0.61}{sup +0.68}(stat) {+-} 0.05(syst) and C = 0.56{sub -0.43}{sup +0.34}(stat) {+-} 004(syst). Combining this result with the previous BABAR measurement, obtained from events with three K{sub S}{sup 0} decaying into {pi}{sup +}{pi}{sup -}, they get S = -0.63{sub -0.28}{sup +0.32}(stat) {+-} 0.04(syst); C = -0.10 {+-} 0.25(stat) {+-} 0.05, (syst).

Bericht Zum Referendum Gegen Den Beschluss Des Weiteren B Rgerrates Vom 30 Mai 1972 Betr Erm Chtigung Der Christoph Merian Stiftung Zu Landverk Ufen Im Banne Muttenz

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Author :
language : en
Publisher:
Release Date : 1975

Bericht Zum Referendum Gegen Den Beschluss Des Weiteren B Rgerrates Vom 30 Mai 1972 Betr Erm Chtigung Der Christoph Merian Stiftung Zu Landverk Ufen Im Banne Muttenz written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with categories.

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

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Author :
language : en
Publisher:
Release Date : 2004

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 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 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]).

Measurement Of Time Dependent Cp Asymmetries In The Decays B D Pi Using A Partial Reconstruction Technique

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Author : Seema Bahinipati
language : en
Publisher:
Release Date : 2007

Measurement Of Time Dependent Cp Asymmetries In The Decays B D Pi Using A Partial Reconstruction Technique written by Seema Bahinipati 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.

Measurements Of Time Dependent Cp Asymmetries In B0 D D Decays

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Author :
language : en
Publisher:
Release Date : 2009

Measurements Of Time Dependent Cp Asymmetries In B0 D D Decays 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.

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 The Time Dependent Cp Asymmetry Inb To D Cp H0 Decays

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Author :
language : en
Publisher:
Release Date : 2007

Measurement Of The Time Dependent Cp Asymmetry Inb To D Cp H0 Decays written by 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.

The authors report a measurement of the time-dependent CP-asymmetry parameters S and C in color-suppressed B° 2!D{sup (*)0}h° decays, where h° is a [pi]°, [eta], or [omega] meson, and the D° decays to one of the CP eigenstates KK−, K{sub S}°[pi]°, or K{sub S}°[omega]. The data sample consists of 383 x 106 [Upsilon](4S) 2!B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B-factory at SLAC. The results are S = -0.56 ± 0.23 ± 0.05 and C = -0.23 ± 0.16 ± 0.04, where the first error is statistical and the second is systematic.