Measurement Of The Bar B 0 U2192 D L Bar V Branching Fraction With A Partial Reconstruction Technique
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Measurement Of The Bar B 0 U2192 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 U2192 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 $ar{B}$0 → D*+l-$ar{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 $ar{B}$0 → D*+l-$ar{v}$l decays using only the soft pion of the D*+ → D0?+ decay to reconstruct its four vector. The branching fraction was measured to be ?($ar{B}$0 → D*+l-$ar{v}$l) = (4.91 ± 0.01stat ± 0.15syst)%.
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 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 B0 D 1 Branching Ratio Using A Partial Reconstruction Technique In Babar
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Author : Grigorios Vaitsas
language : en
Publisher:
Release Date : 2004
A Measurement Of The B0 D 1 Branching Ratio Using A Partial Reconstruction Technique In Babar written by Grigorios Vaitsas 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.
A Measurement Of The B U00ba U2192 D A1 Branching Ration Using A Partial Reconstruction Technique In Babar
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Author : Grigorios Vaitsas
language : en
Publisher:
Release Date : 2004
A Measurement Of The B U00ba U2192 D A1 Branching Ration Using A Partial Reconstruction Technique In Babar written by Grigorios Vaitsas 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.
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.
Relaci N De La Jornada Que Hizo El Condestable De Castilla Don Juan Fern Ndez De Velasco Desde Valadolid A Inglaterra Con Embajada De S M Felipe Iii 1603
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Author :
language : en
Publisher:
Release Date : 1603
Relaci N De La Jornada Que Hizo El Condestable De Castilla Don Juan Fern Ndez De Velasco Desde Valadolid A Inglaterra Con Embajada De S M Felipe Iii 1603 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1603 with categories.
A Measurement Of The Semileptonic Branching Fraction B B Bar Neutral Going To D L Nu Bar At Cleo
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Author : Bruce Edmond Berger
language : en
Publisher:
Release Date : 2001
A Measurement Of The Semileptonic Branching Fraction B B Bar Neutral Going To D L Nu Bar At Cleo written by Bruce Edmond Berger 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.
I begin with a overview of the theoretical background for this measurement. I discuss notable features of the CLEO II experiment. I detail the event selection criteria and candidate reconstruction methods, and I describe the methods I use to model backgrounds. I present the branching fraction fit, and I quantify the various sources of measurement error. I present detailed studies of the reconstruction efficiency for slow charged pions, an important source of systematic uncertainty for this analysis. I conclude by discussing my result in the context of semileptonic B physics.
Measurement Of The Bar B Yields D Ell Bar Nu Anti Neutrino Partial Width And Form Factor Parameters
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Author :
language : en
Publisher:
Release Date : 2003
Measurement Of The Bar B Yields D Ell Bar Nu Anti Neutrino Partial Width And Form Factor Parameters 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 have studied the decay[bar B][yields] D[ell][bar[nu]], where[ell]= e or[mu]. From a fit to the differential decay rate d[Lambda]/dw we measure the rate normalization F[sub D](1)V[sub cb] and form factor slope[rho][sub D][sup 2], and, using measured values of[tau][sub B], find[Lambda]([bar B][yields] D[ell][bar[nu]])= (12.0[+-] 0.9[+-] 2.1) ns[sup -1]. The resulting branching fractions are[Beta]([bar B][sup 0][yields] D[sup+][ell][sup -][bar[nu]])= (1.87[+-] 0.15[+-] 0.32)% and[Beta](B[sup -][yields] D[sup 0][ell][sup -][bar[nu]])= (1.94[+-] 0.15[+-] 0.34)%. The form factor parameters are in agreement with those measured in[bar B][yields] D*[ell][bar[nu]] decays, as predicted by heavy quark effective theory.
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.