The Left-right Forward-backward Asymmetry of Heavy Quarks Measured with Jet Charge and with Leptons at the SLD. PDF Download
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Languages : en
Pages : 7
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Book Description
The authors present direct measurements of the left-right asymmetry of b- and c-quarks from the decay of Z° bosons produced in the annihilation of longitudinally polarized electrons and unpolarized positrons. Two complementary techniques are presented: (1) Z° --> b{bar b} decays are tagged using track impact parameters with b{bar b} discrimination provided by momentum-weighted track charge; (2) semileptonic b-decays are tagged using high p and p{sub T} muons and electrons. The preliminary results from their 1993 data sample are: A{sub b} = 0.93 " 0.13 " 0.13 for the jet charge and A{sub b} = 0.93 " 0.14 " 0.09, and A{sub c} = 0.40 " 0.23 " 0.20 for the leptons, where the first error is statistical and the second systematic.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 7
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Book Description
The authors present direct measurements of the left-right asymmetry of b- and c-quarks from the decay of Z° bosons produced in the annihilation of longitudinally polarized electrons and unpolarized positrons. Two complementary techniques are presented: (1) Z° --> b{bar b} decays are tagged using track impact parameters with b{bar b} discrimination provided by momentum-weighted track charge; (2) semileptonic b-decays are tagged using high p and p{sub T} muons and electrons. The preliminary results from their 1993 data sample are: A{sub b} = 0.93 " 0.13 " 0.13 for the jet charge and A{sub b} = 0.93 " 0.14 " 0.09, and A{sub c} = 0.40 " 0.23 " 0.20 for the leptons, where the first error is statistical and the second systematic.
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Category :
Languages : en
Pages :
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Book Description
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Category : Aeronautics
Languages : en
Pages : 548
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Book Description
Author: André Rubbia
Publisher: Cambridge University Press
ISBN: 1009020935
Category : Science
Languages : en
Pages : 1112
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Book Description
Written for a two-semester Master's or graduate course, this comprehensive treatise intertwines theory and experiment in an original approach that covers all aspects of modern particle physics. The author uses rigorous step-by-step derivations and provides more than 100 end-of-chapter problems for additional practice to ensure that students will not only understand the material but also be able to apply their knowledge. Featuring up-to-date experimental material, including the discovery of the Higgs boson at CERN and of neutrino oscillations, this monumental volume also serves as a one-stop reference for particle physics researchers of all levels and specialties. Richly illustrated with more than 450 figures, the text guides students through all the intricacies of quantum mechanics and quantum field theory in an intuitive manner that few books achieve.
Author: Zygmunt Ajduk
Publisher: World Scientific
ISBN: 9814547107
Category :
Languages : en
Pages : 1878
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Book Description
The 28th conference from the Rochester series was the major high energy physics conference in 1996. Volume one contains short reports on new theoretical and experimental results. Volume two consists of the review talks presented in the plenary sessions.
Author: Albert De Roeck
Publisher: World Scientific
ISBN: 9814545120
Category :
Languages : en
Pages : 778
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Book Description
This book constitutes the proceedings of the XVIII International Symposium on Lepton-Photon Interactions. It contains 30 review papers on the latest developments by experts in the field. The subjects cover the structure of photons and hadrons, progress in QCD and diffraction, heavy quark (c, b, t) physics, electroweak precision measurements and tests, CP violation, neutrino physics, searches for new particles and phenomena, cosmology, progress in theory and physics at future colliders.
Author: Sally Seidel
Publisher: World Scientific
ISBN: 9814549967
Category :
Languages : en
Pages : 2088
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Book Description
This book presents the latest results from high energy physics laboratories. The topics discussed include: Cosmology, Heavy Ions, Electroweak, Heavy Flavour Physics and CP Violation/Rare Decays, QCD and Beyond the Standard Model, Planck Scale Physics, Accelerator and Non-Accelerator Physics and Instrumentation.
Author: J. Barcelos-Neto
Publisher: World Scientific
ISBN: 9814530301
Category : Field theory (Physics)
Languages : en
Pages : 544
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Book Description
"These proceedings contain the lecture notes of the topics covered during the Summer School as well as the contributions from the Workshop. The first week saw discussions on the phenomenological aspects of particle physics, aspects of CP violation, the implications of precision electroweak experiments, new developments of perturbative QCD, physics beyond the standard model, and the implications of the minimal supersymmetric model and its string motivation. The second week of the School was dedicated to more formal aspects of particle physics including quantum groups and quantum spaces, calculations of loops and anomalies using supersymmetric path integrals, a new description of superstrings, integrable models and a review on the quantum mechanics of black holes."--Publisher's website.
Author: J Barcelos-neto
Publisher: World Scientific
ISBN: 9814546720
Category :
Languages : en
Pages : 544
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Book Description
These proceedings contain the lecture notes of the topics covered during the Summer School as well as the contributions from the Workshop. The first week saw discussions on the phenomenological aspects of particle physics, aspects of CP violation, the implications of precision electroweak experiments, new developments of perturbative QCD, physics beyond the standard model, and the implications of the minimal supersymmetric model and its string motivation. The second week of the School was dedicated to more formal aspects of particle physics including quantum groups and quantum spaces, calculations of loops and anomalies using supersymmetric path integrals, a new description of superstrings, integrable models and a review on the quantum mechanics of black holes.
Author: Paul G Langacker
Publisher: World Scientific
ISBN: 9814602817
Category : Science
Languages : en
Pages : 1032
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Book Description
High precision measurements of weak neutral current and charged current processes and of the properties of the Z and W bosons have established the standard electroweak model as correct down to a distance scale of 10-16 cm, and are a sensitive probe of possible underlying physics. In this book, all aspects of the program are considered in detail, including the structure of the standard model, radiative corrections, high precision experiments, and their implications. The major classes of experiments are surveyed, covering the experiments themselves, the data analysis, results, and prospects.This volume is a detailed reference for theoretical and experimental researchers, as well as an introductory text for advanced students.
