A Measurement Of The Beta Plus Minus Rho Plus Minus Pi Zero Branching Fraction At The Babar Experiment

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A Measurement Of The Beta Plus Minus Rho Plus Minus Pi Zero Branching Fraction At The Babar Experiment

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Author : Richard J. Sloane
language : en
Publisher:
Release Date : 2003

A Measurement Of The Beta Plus Minus Rho Plus Minus Pi Zero Branching Fraction At The Babar Experiment written by Richard J. Sloane 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.

A Study Of The Decay Beta Plus Minus Rho Plus Minus Rho Zero At The Babar Experiment And Its Impact On The Ckm Angle Alpha

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Author : Katharine Clare Schofield
language : en
Publisher:
Release Date : 2006

A Study Of The Decay Beta Plus Minus Rho Plus Minus Rho Zero At The Babar Experiment And Its Impact On The Ckm Angle Alpha written by Katharine Clare Schofield 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.

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.

Recent Results From The Babar Experiment

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Author :
language : en
Publisher:
Release Date : 2004

Recent Results From The Babar Experiment 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 an overview of some of the most recent results from the BABAR experiment. They discuss the latest measurement of the time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates, that in the Standard Model (SM) is proportional to sin 2[beta]. They present measurements of branching fractions and CP-violating asymmetries in neutral B decays to two-body final states of charged pions and kaons, that are related to the angle [alpha] of the Unitarity Triangle. They also report the B[sup 0] lifetime measurement obtained from studying the B[sup 0] [yields] D*[sup -] [pi][sup +] and B[sup 0] [yields] D*[sup -] [rho][sup +] decay channels and the B[sup 0] [yields] D*[sup -] a[sub 1][sup +] branching fraction, obtained using a partial reconstruction technique. These measurements serve as a test and validation of the procedures required to measure the combination of CKM Unitarity Triangle angles sin(2[beta] + [gamma]).

Measurement Of Branching Fractions And Cp Violating Asymmetries In B Rho H

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Author :
language : en
Publisher:
Release Date : 2003

Measurement Of Branching Fractions And Cp Violating Asymmetries In B Rho H 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 measurements of branching fractions and CP-violating asymmetries in B[sup 0][yields][rho][sup[+-]][pi][sup[-+]] and B[sup 0][yields][rho][sup -]K[sup+] decays. The results are obtained from a data sample of 88.9 x 10[sup 6][Upsilon](4S)[yields] B[bar B] decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. From a time-dependent maximum likelihood fit we measure the charge-averaged branching fractions[Beta](B[sup 0][yields][rho][sup[+-]][pi][sup[-+]])= (22.6[+-] 1.8 (stat)[+-] 2.2 (syst)) x 10[sup -6] and[Beta](B[sup 0][yields][rho][sup -]K[sup+])= (7.3[sub -1.2][sup+1.3][+-] 1.3) x 10[sup -6]; and the CP-violating charge asymmetries A[sub CP][sup[rho][pi]]= -0.18[+-] 0.08[+-] 0.03 and A[sub CP][sup[rho]K]= 0.28[+-] 0.17[+-] 0.08; the direct CP violation parameter C[sub[rho][pi]]= 0.36[+-] 0.18[+-] 0.04 and the mixing-induced CP violation parameter S[sub[rho][pi]]= 0.19[+-] 0.24[+-] 0.03; and the dilution parameters[Delta]C[sub[rho][pi]]= 0.28[sub -0.19][sup+0.18][+-] 0.04 and[Delta]S[sub[rho][pi]]= 0.15[+-] 0.25[+-] 0.03.

Measurement Of Branching Fractions And Charge Asymmetries In B Plus Or Minus Density Plus Or Minus Pi 0 And B Plus Or Minus Density 0 Pi Plus Or Minus Decays And Search For B0 Density 0 Pi O

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Author :
language : en
Publisher:
Release Date : 2003

Measurement Of Branching Fractions And Charge Asymmetries In B Plus Or Minus Density Plus Or Minus Pi 0 And B Plus Or Minus Density 0 Pi Plus Or Minus Decays And Search For B0 Density 0 Pi O 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.

Measurement Of The Bar B 0 2 D L Bar V Branching Fraction With A Partial Reconstruction Technique

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Author :
language : en
Publisher:
Release Date : 2009

Measurement Of The Bar B 0 2 D L Bar V Branching Fraction With A Partial Reconstruction Technique 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.

Presented is a precise measurement of the $\bar{B}$0 → D*+l-$\bar{v}$l branching fraction using 81.47 fb-1 of data collected with the BABAR detector at the PEP-II e+e- storage ring at the Stanford Linear Accelerator Center. The measurement was performed by partially reconstructing the D*+ meson from $\bar{B}$0 → D*+l-$\bar{v}$l decays using only the soft pion of the D*+ → D0[pi]+ decay to reconstruct its four vector. The branching fraction was measured to be [beta]($\bar{B}$0 → D*+l-$\bar{v}$l) = (4.91 ± 0.01stat ± 0.15syst)%.

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 The B0 D A 1 Branching Fraction With Partially Reconstructed D

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Author :
language : en
Publisher:
Release Date : 2002

Measurement Of The B0 D A 1 Branching Fraction With Partially Reconstructed D 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.

The B° 2!D*− a1 branching fraction has been measured with data collected by the BaBar experiment in 1999 and 2000 corresponding to a total integrated luminosity of 20.6 fb−1. Signal events have been selected using a partial reconstruction technique, in which only the a1 and the slow pion ([pi]{sub s}) from the D*− decay are identified. A signal yield of 18400 ± 1200 events has been found, corresponding to a preliminary branching fraction of (1.20 ± 0.07(stat) ± 0.14(syst))%.

A Measurement Of The Exclusive Branching Fraction For B Pi K At Babar

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Author :
language : en
Publisher:
Release Date : 2002

A Measurement Of The Exclusive Branching Fraction For B Pi K At Babar 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.