Observation of the Baryonic Flavor-Changing Neutral Current Decay [Lambda]b0 → [Lambda]μ+μ-. PDF Download
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Languages : en
Pages : 8
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The authors report the first observation of the baryonic flavor-changing neutral current decay [Lambda]b0 → [Lambda]μ+μ- with 24 signal events and a statistical significance of 5.8 Gaussian standard deviations. This measurement uses a pp̄ collisions data sample corresponding to 6.8 fb-1 at √s = 1.96 TeV collected by the CDF II detector at the Tevatron collider. The total and differential branching ratios for [Lambda]b0 → [Lambda]μ+μ- are measured. They find [Beta]([Lambda]b0 → [Lambda]μ+μ-) = [1.73 ± 0.42(stat) ± 0.55(syst)] x 10-6. They also report the first measurement of the differential branching ratio of Bs0→[phi]μ+μ- using 49 signal events. In addition, they report branching ratios for B+→K+μ+μ-, B0→K0μ+μ- and [Beta]→ K*(892)μ+μ- decays.
![Observation of the Baryonic Flavor-Changing Neutral Current Decay [Lambda]b0 → [Lambda]μ+μ-. PDF](https://books.google.com/books/content/images/frontcover/S7H5jwEACAAJ?fife=w80-h100)
Author:
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Category :
Languages : en
Pages : 8
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Book Description
The authors report the first observation of the baryonic flavor-changing neutral current decay [Lambda]b0 → [Lambda]μ+μ- with 24 signal events and a statistical significance of 5.8 Gaussian standard deviations. This measurement uses a pp̄ collisions data sample corresponding to 6.8 fb-1 at √s = 1.96 TeV collected by the CDF II detector at the Tevatron collider. The total and differential branching ratios for [Lambda]b0 → [Lambda]μ+μ- are measured. They find [Beta]([Lambda]b0 → [Lambda]μ+μ-) = [1.73 ± 0.42(stat) ± 0.55(syst)] x 10-6. They also report the first measurement of the differential branching ratio of Bs0→[phi]μ+μ- using 49 signal events. In addition, they report branching ratios for B+→K+μ+μ-, B0→K0μ+μ- and [Beta]→ K*(892)μ+μ- decays.
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Languages : en
Pages : 7
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The authors report the first observation of the baryonic flavor-changing neutral current decay?{sub b}° →???− with 24 signal events and a statistical significance of 5.8 Gaussian standard deviations. This measurement uses a p{bar p} collisions data sample corresponding to 6.8 fb−1 at √s = 1.96 TeV collected by the CDF II detector at the Tevatron collider. The total and differential branching ratios for?{sub b}° →??+?− are measured. They find?(?{sub b}° →??+?−) = [1.73 ± 0.42(stat) ± 0.55(syst)] x 10−6. They also report the first measurement of the differential branching ratio of B{sub s}° →??+?− using 49 signal events. In addition, they report branching ratios for B+ → K+?+?−, B° → K°?+?− and B → K*(892)?+?− decays.
![Search for the Flavor Changing Neutral Current Decay T --> Zq at [the Square Root Of] S PDF](https://books.google.com/books/content/images/frontcover/LsoiPwAACAAJ?fife=w80-h100)
Author: Jennifer Lindsay Gimmell
Publisher:
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Category :
Languages : en
Pages : 270
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Author: Nicholas James Witchey
Publisher:
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Category :
Languages : en
Pages : 326
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Author:
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ISBN:
Category :
Languages : en
Pages : 8
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Book Description
We report on a search for the flavor-changing neutral-current decay D° →??− in p{bar p} collisions at √s = 1.96TeV using 360 pb−1 of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron collider. A displaced vertex trigger selects long-lived D° candidates in the?+?−,?+?−, and K−?+ decay modes. We use the Cabibbo-favored D° → K−?+ channel to optimize the selection criteria in an unbiased manner, and the kinematically similar D° →?+?− channel for normalization. We set an upper limit on the branching fraction?(D° →?+?−)
Author: Bo Andersson
Publisher: Cambridge University Press
ISBN: 1009401254
Category : Science
Languages : en
Pages : 485
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Author: A J Buras
Publisher: World Scientific
ISBN: 9814602825
Category :
Languages : en
Pages : 803
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Book Description
This volume is a collection of review articles on the most outstanding topics in heavy flavour physics. All the authors have made significant contributions to this field. The book reviews in detail the theoretical structure of heavy flavour physics within the Standard Model and its confrontation with existing experimental data.The physics of the top quark and of the Higgs play an important role in this volume. Beginning with radiative electroweak corrections and their impressive tests at LEP and hadron colliders, the book summarizes the present status of quark mixing, CP violation and rare decays. The dynamics of exclusive D- and B-meson decays, the τ-lepton physics and the newly discovered heavy quark symmetries are discussed in detail. The impact of strong interactions on weak decays is clearly visible in many articles. The physics of heavy flavours at LEP, HERA and hadron colliders constitutes an important part of the book. Another significant topic is the possible role of heavy flavours in the spontaneous symmetry breaking of gauge symmetries. Finally the most recent advances in lattice calculations of the properties of heavy flavours and the lattice studies of the dynamics of heavy flavours are presented.
