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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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.
Time Dependent B Sup 0 Bar B Sup 0 Mixing At Sld
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Author :
language : en
Publisher:
Release Date : 2002
Time Dependent B Sup 0 Bar B Sup 0 Mixing At Sld 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 several preliminary studies of the time dependence of B[sub s][sup 0]-[bar B][sub s][sup 0] and B[sub d][sup 0]-[bar B][sub d][sup 0] mixing using a sample of 400,000 hadronic Z decays collected by the SLD experiment at the SLC. The study of B[sub d][sup 0]-[bar B][sub d][sup 0] mixing determines a value of[Delta]m[sub d]= 0.503[+-] 0.028(stat)[+-] 0.020(sys)ps[sup -1]. In the study of B[sub s][sup 0]-[bar B][sub s][sup 0] mixing, oscillation frequencies up to[Delta]m[sub s]
Time Dependent B Bar B Mixing At Sld
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Author :
language : en
Publisher:
Release Date : 2001
Time Dependent B Bar B Mixing At Sld written by 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.
We report several preliminary studies of the time dependence of B{sub s}°-{bar B}{sub s}° and B{sub d}°-{bar B}{sub d}° mixing using a sample of 400,000 hadronic Z decays collected by the SLD experiment at the SLC. The study of B{sub d}°-{bar B}{sub d}° mixing determines a value of [Delta]m{sub d} = 0.503 ± 0.028(stat) ± 0.020(sys)ps−1. In the study of B{sub s}°-{bar B}{sub s}° mixing, oscillation frequencies up to [Delta]m{sub s}
Measurement Of Mathcal B Tau Bar K 0 Pi Nu Tau Using The Babar Detector
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Author :
language : en
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Release Date : 2008
Measurement Of Mathcal B Tau Bar K 0 Pi Nu Tau Using The Babar Detector 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.
A preliminary measurement of the branching fraction?(?− → K{sub S}°?−?{sub?}) is made using 384.6 fb−1 of ee− collision data provided by the PEP-II collider, operating primarily at √s = 10.58 GeV, and recorded using the BABAR detector. From this they measure:?({tau}− → {bar K}°?−?{sub {tau}}) = (0.840 ± 0.004(stat) ± 0.023(syst))%. This result is the most precise measurement to date and is consistent with the world average.
Measurement Of Correlated B Bbar Production In P Pbar Collisions At S
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language : en
Publisher:
Release Date : 2007
Measurement Of Correlated B Bbar Production In P Pbar Collisions At 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 2007 with categories.
We present a measurement of the correlated b{bar b} production cross section. The data used in this analysis were taken with the upgraded CDF detector (CDF II) at the Fermilab Tevatron collider, and correspond to an integrated luminosity of 742 pb−1. We utilize muon pairs with invariant mass 5 ≤ m{sub??} ≤ 80 GeV/c2 produced by b{bar b} double semileptonic decays. For muons with p{sub T} ≥ 3 GeV/c and.
Untagged Bar B Yields X Sub S D Gamma Cp Asymmetry As A Probe For New Physics
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Author :
language : en
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Release Date : 2004
Untagged Bar B Yields X Sub S D Gamma Cp Asymmetry As A Probe For New Physics 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 direct CP asymmetry in the untagged inclusive channel [bar B] [yields] X[sub s+d] [gamma] provides a strict test of the standard model. It has been shown beyond the partonic level that this asymmetry is negligibly small thanks to U-spin relations and to the unitarity of the CKM matrix. In the present paper we investigate this relation beyond the SM; in particular, we analyze to which extent deviations from this prediction are possible in supersymmetric scenarios. We analyze the minimal flavour violation scenario, including tan [beta]-enhanced terms and using the complete two-loop renormalization group running. Our analysis fully takes into account also the EDM constraints on the supersymmetric phases. We investigate possible correlations between the tagged and the untagged CP asymmetries and the indirect sensitivity of the latter to the [bar B] [yields] X[sub d] [gamma] CP asymmetry. Furthermore, we derive general model-independent formulae for the branching ratios and CP asymmetries for the inclusive [bar B] [yields] X[sub d] [gamma] and [bar B] [yields] X[sub s] [gamma] modes, and update the corresponding SM predictions.
Bs Mixing At Sld
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Author :
language : en
Publisher:
Release Date : 2001
Bs Mixing At Sld written by 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.
We set a preliminary 95% C.L. exclusion on the oscillation frequency of B[sub s][sup 0] -[bar B][sub s][sup 0] mixing using a sample of 400,000 hadronic Z[sup 0] decays collected by the SLD experiment at the SLC during the 1996-98 run. Three analyses are presented in this paper. The first analysis partially reconstructs the B[sub s][sup 0] by combining a fully reconstructed D[sub s] with the remaining charged B decay tracks. The second analysis selects a sample of events with a partially reconstructed charm vertex and a lepton track. The third analysis reconstructs b-hadrons topologically and exploits the b[yields] c cascade charge structure to determine the flavor of the b-hadron at decay. All three analyses take advantage of the large forward-backward asymmetry of the polarized Z[sup 0][yields] b[bar b] decays and information in the hemisphere opposite to the reconstructed B vertex to determine the b-hadron flavor at production. The results of the three analyses are combined to exclude the following values of the B[sub s][sup 0] -[bar B][sub s][sup 0] oscillation frequency:[Delta]m[sub s]
Measurement Of Correlated B Bbar Production In P Pbar Collisions At S 1 2
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Author :
language : en
Publisher:
Release Date : 2007
Measurement Of Correlated B Bbar Production In P Pbar Collisions At S 1 2 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.
We present a measurement of the correlated b{bar b} production cross section. The data used in this analysis were taken with the upgraded CDF detector (CDF II) at the Fermilab Tevatron collider, and correspond to an integrated luminosity of 742 pb−1. We utilize muon pairs with invariant mass 5 ≤ m{sub [mu][mu]} ≤ 80 GeV/c2 produced by b{bar b} double semileptonic decays. For muons with p{sub T} ≥ 3 GeV/c and.
New Measurement Of The Bs Mixing Phase At Cdf
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Author :
language : en
Publisher:
Release Date : 2010
New Measurement Of The Bs Mixing Phase At Cdf written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
The Determination Of The G Subscript J Superscript 3 P Subscript 1 Value And G Subscript J Superscript 1 P Subscript 1 Value Of Barium And The Ratio A Superscript 1 P Subscript 1 Greek Letter Mu Subscript O G Subscript J Superscript 1 P Subscript 1 Of Mercury 199
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Author : Michael W. Swagel
language : en
Publisher:
Release Date : 1967
The Determination Of The G Subscript J Superscript 3 P Subscript 1 Value And G Subscript J Superscript 1 P Subscript 1 Value Of Barium And The Ratio A Superscript 1 P Subscript 1 Greek Letter Mu Subscript O G Subscript J Superscript 1 P Subscript 1 Of Mercury 199 written by Michael W. Swagel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Barium categories.