A Study of the Strong Coupling Constant Using W+ Jets Processes PDF Download
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Languages : en
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Book Description
Author:
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Languages : en
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Book Description
![Determination of the Strong Coupling Constant ([alpha]{sub S}) and a Test of Perturbative QCD Using W + Jets Processes in the D0 Detector PDF](https://books.google.com/books/content/images/frontcover/gJpXAQAACAAJ?fife=w80-h100)
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Languages : en
Pages : 119
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Book Description
The D0 experiment has accumulated data for a study of inclusive W production corresponding to a total integrated luminosity of 14.3 ± 1.7 pb−1 during the 1992--1993 Fermilab Tevatron collider run. The total number of W → e + [nu] candidates is 9770. The ratio of the number of W + 1 jet events to that of W + 0 jet events has been measured as a function of jet minimum E{sub T}. Using this ratio the strong coupling constant, [alpha]{sub s} at Q2 = M{sub W}2 is measured to be [alpha]{sub s}(M{sub W}2) = 0.124 ± 0.005(stat) ± 0.006(MC) ± 0.008(theory){sub -0.022}{sup +0.026}(sys) or ({sub -0.025}{sup +0.028} combined) with a jet minimum E{sub T} of 25 GeV. A quantitative test of perturbative QCD has been made by comparing the experimentally measured ratio with the theoretical predictions. The theoretical predictions of the ratio in both the leading order and next-to-leading order are in good agreement with the measured ratio.
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.
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Category : Power resources
Languages : en
Pages : 782
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Category :
Languages : en
Pages : 2
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A preliminary measurement of the ratio, R1°, of the production cross sections for W + 1 Jet and W + 0 Jets processes at a center of mass energy, √s, of 1800 GeV by the D0 Collaboration is presented. A comparison of this ratio is made to next-to-leading- order, NLO, calculations and the implications of these comparisons, especially for the extraction of a value for the strong coupling constant?{sub s}(M {sub W}2), are discussed. 8 refs., 2 figs.
Author:
Publisher: Heinemann
ISBN: 9780435628925
Category : Science
Languages : en
Pages : 458
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Book Description
The "Salters Horners Advanced Physics" series places physics into social, industrial, environmental and historical contexts, and covers the A Level specifications in place from September 2000. This A2 Level student book features maths support notes and applications-led illustrations of physics.
Author: Thomas A Degrand
Publisher: World Scientific
ISBN: 9814552925
Category : Science
Languages : en
Pages : 760
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Book Description
This School focussed on computation in theoretical particle physics. Accordingly, it had large components on collider phenomenology and lattice gauge theory. A number of lectures on current topics in modern mathematical physics (conformal field theory, quantum gravity, and sphalerons) were included.
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Category : Aeronautics
Languages : en
Pages : 692
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Author: Roman Kogler
Publisher: Springer Nature
ISBN: 3030728587
Category : Science
Languages : en
Pages : 287
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This book introduces the reader to the field of jet substructure, starting from the basic considerations for capturing decays of boosted particles in individual jets, to explaining state-of-the-art techniques. Jet substructure methods have become ubiquitous in data analyses at the LHC, with diverse applications stemming from the abundance of jets in proton-proton collisions, the presence of pileup and multiple interactions, and the need to reconstruct and identify decays of highly-Lorentz boosted particles. The last decade has seen a vast increase in our knowledge of all aspects of the field, with a proliferation of new jet substructure algorithms, calculations and measurements which are presented in this book. Recent developments and algorithms are described and put into the larger experimental context. Their usefulness and application are shown in many demonstrative examples and the phenomenological and experimental effects influencing their performance are discussed. A comprehensive overview is given of measurements and searches for new phenomena performed by the ATLAS and CMS Collaborations. This book shows the impressive versatility of jet substructure methods at the LHC.
Author: G. Grindhammer
Publisher: Springer
ISBN: 3540465227
Category : Science
Languages : en
Pages : 459
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Book Description
Experts on elementary-particle physics, both theorists and experimentalists, met to present their latest results on the various aspects of HERA physics, specifically, the H1 and ZEUS collaborations at HERA and the collaborations at LEP and the Tevatron were presented. The topics included: proton structure function; polarized "ep" scattering; final states in deep-inelastic scattering (DIS), with special emphasis on jet production at low x, power corrections in DIS, soft particle production, and instanton effects; photon structure function; photoproduction of jets and hadrons; heavy-flavour and charmonium production; elastic and diffractive ep scattering; and new physics at HERA.
