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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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.
Government Reports Announcements Index
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language : en
Publisher:
Release Date : 1993-04
Government Reports Announcements Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-04 with Science 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 : Roberto Covarelli
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 Roberto Covarelli 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 B0 Ds D Branching Fractions And B0 Ds D Polarization With A Partial Reconstruction Technique
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Author :
language : en
Publisher:
Release Date : 2003
Measurement Of B0 Ds D Branching Fractions And B0 Ds D Polarization 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 2003 with categories.
The authors present a study of the decays B[sup 0][yields] D[sub s][sup (*)+] D*[sup -], using 20.8 fb[sup -1] of e[sup+]e[sup -] annihilation data recorded with the BABAR detector. The analysis is conducted with a partial reconstruction technique, in which only the D[sub s][sup (*)+] and the soft pion from the D*[sup -] decay are reconstructed. They measure the branching fractions[Beta](B[sup 0][yields] D[sub s][sup (*)+] D*[sup -])= (1.03[+-] 0.14[+-] 0.13[+-] 0.26)% and[Beta](B[sup 0][yields] D[sub s][sup (*)+] D*[sup -])= (1.97[+-] 0.15[+-] 0.30[+-] 0.49)%, where the first error is statistical, the second is systematic, and the third is the error due to the D[sub s][sup+][yields][phi][pi][sup+] branching fraction uncertainty. From the B[sup 0][yields] D[sub s][sup (*)+] D*[sup -] angular distributions, they measure the fraction of longitudinal polarization[Lambda][sub L]/[Lambda]= (51.9[+-] 5.0[+-] 2.8)%, which is consistent with theoretical predictions based on factorization.
Measurement Of The Branching Fraction For D S Phi Pi
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Author :
language : en
Publisher:
Release Date : 2003
Measurement Of The Branching Fraction For D S Phi Pi 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 a model-independent measurement of[Beta](D[sub s][sup -][yields][phi][pi][sup -])/[Beta](D[sup 0][yields] K[sup -][pi][sup+]) by partially reconstructing the decay[bar B][sup 0][yields] D*[sup+]D*[sub s][sup -]. Using data collected with the CLEO II detector at CESR, they determine[Beta](D[sub s][sup -][yields][phi][pi][sup -])/[Beta](D[sup 0][yields] K[sup -][pi][sup+])= 0.92[+-] 0.20(stat.)[+-] 0.11(syst.). Their measurement of[Beta](D[sup 0][yields] K[sup -][pi][sup+]) then gives[Beta](D[sub s][sup -][yields][phi][pi][sup -])= (3.59[+-] 0.77[+-] 0.48)%.
Measurement Of B0 D S D Branching Fractions And Polarization In The Decay B0 Ds File With A Partial Reconstruction Technique
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Author :
language : en
Publisher:
Release Date : 2003
Measurement Of B0 D S D Branching Fractions And Polarization In The Decay B0 Ds File 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 2003 with categories.
We present measurements of the decays B[sup 0][yields] D[sub s][sup (*)+] D*[sup -], using data recorded by the BABAR detector in 1999 and 2000, consisting of 20.8 fb[sup -1]. The analysis is conducted with a partial reconstruction technique, in which only the D[sub s][sup (*)+] and the soft pion from the D*[sup -] decay are reconstructed. From the observed rates, we measure the branching fractions[Beta](B[sup 0][yields] D[sub s][sup+] D*[sup -])= (1.03[+-] 0.14[+-] 0.13[+-] 0.26)% and[Beta](B[sup 0][yields] D*[sub s][sup+] D*[sup -])= (1.97[+-] 0.15[+-] 0.30[+-] 0.49)%, where the first error is statistical, the second is systematic, and the third is the error due to the D[sub s][sup+][yields][phi][pi][sup+] branching fraction uncertainty. From the[Beta](B[sup 0][yields] D*[sub s][sup+] D*[sup -]) angular distributions, we measure the fraction of longitudinal polarization[Lambda][sub L]/[Lambda]= (51.9[+-] 5.0[+-] 2.8)%, which is consistent with the theoretical prediction, based on factorization. These results are preliminary.
Preventie Van Psychische Stoornissen
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language : en
Publisher:
Release Date : 1994
Preventie Van Psychische Stoornissen written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
Measurement Of The B0 D A 1 Branching Fraction With Partially Reconstructed D
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language : en
Publisher:
Release Date : 2003
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 2003 with categories.
The B[sup 0][yields] D*[sup -] a[sub 1][sup+] 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[sup -1]. Signal events have been selected using a partial reconstruction technique, in which only the a[sub 1][sup+] and the slow pion ([pi][sub s]) from the D*[sup -] 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))%.
Evidence For The B Yields U Transition B Sup 0 D Sub S Sup Pi Sup And A Search For B Sup 0 D Sub S Sup Pi Sup
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Author :
language : en
Publisher:
Release Date : 2002
Evidence For The B Yields U Transition B Sup 0 D Sub S Sup Pi Sup And A Search For B Sup 0 D Sub S Sup Pi Sup 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.
We report evidence for the b[yields] u transition B[sup 0][yields] D[sub s][sup+][pi][sup -] and the results of a search for B[sup 0][yields] D*[sub s][sup+][pi][sup -] from a sample of 61.6 x 10[sup 6][Upsilon](4S) decays into B meson pairs collected with the BABAR detector at the PEP II asymmetric e[sup+]e[sup -] collider. The observed B[sup 0][yields] D[sub s][sup+][pi][sup -] yield has a probability of 4.4 x 10[sup -4] to be a fluctuation of the background (3.5[sigma]) and we measure the branching fraction[Beta](B[sup 0][yields] D[sub s][sup+][pi][sup -])= (3.1[+-] 1.0(stat.)[+-] 1.0(syst.)) x 10[sup -5]. They also set a limit[Beta](B[sup 0][yields] D*[sub s][sup+][pi][sup -])
Notre Petite Ferme Et Ses Revenus
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Author :
language : en
Publisher:
Release Date : 1864
Notre Petite Ferme Et Ses Revenus written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1864 with categories.