[PDF] Hadron Structure In Electroweak Precision Measurements eBook

Author : Nathan L. Hall
Publisher : Springer
Page : 127 pages
File Size : 16,56 MB
Release : 2015-07-24
Category : Science
ISBN : 3319202219

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This thesis examines the γZ box contribution to the weak charge of the proton. Here, by combining recent parity-violating electron-deuteron scattering data with our current understanding of parton distribution functions, the author shows that one can limit this model dependence. The resulting construction is a robust model of the γγ and γZ structure functions that can also be used to study a variety of low-energy phenomena. Two such cases are discussed in this work, namely, the nucleon’s electromagnetic polarizabilities and quark-hadron duality. By using phenomenological information to constrain the input structure functions, this important but previously poorly understood radiative correction is determined at the kinematics of the parity-violating experiment, QWEAK, to a degree of precision more than twice that of the previous best estimate. A detailed investigation into available parametrizations of the electromagnetic and interference cross-sections indicates that earlier analyses suffered from the inability to correctly quantify their model dependence.

Author :
Publisher :
Page : 132 pages
File Size : 26,63 MB
Release : 2014
Category :
ISBN :

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Precision measurements offer important, low-energy tests of the Standard Model. The Qweak and (proposed) MOLLER experiments at Jefferson Lab are two such measurements. Since the interpretation of the experimental results depends on the precision of the theory prediction, radiative corrections need to be properly accounted for. In this thesis we examine the [gamma]Z box correction to the the weak charge of the proton.

Author : P. Langacker
Publisher : World Scientific Publishing Company Incorporated
Page : 1008 pages
File Size : 27,16 MB
Release : 1995
Category : Science
ISBN : 9789810212841

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I. Introduction : precision tests and particle physics / by Paul Langacker -- II. The standard electroweak model. A. Structure of the standard model / by Paul Langacker -- B. Renormalization of the standard model / by Wolfgang Hollik -- C. Predictions for e+e- processes / by Wolfgang Hollik -- D. Radiative corrections to neutral current processes / by William J. Marciano -- III. Precision tests at e+e- colliders. A. e+e- Annihilation from [symbol]s = 20 to 65 GeV / by Dieter Haidt -- B. Z0-pole experiments -- C. Beam polarization in e+e- annihilation / by Alain Blondel -- D. The LEP 200 programme / by Daniel Treille -- IV. The weak neutral current. A. The measurement of electroweak parameters from deep inelastic neutrino scattering / by Frederic Perrier -- B. Neutrino-proton elastic scattering / by Alfred K. Mann -- C. Neutrino-electron scattering / by Jaap Panman -- D. Atomic parity nonconservation experiments / by B. Patrick Masicrsvn and Carl E. Wieman -- E. The theory of atomic parity violation / by S. A. Blundell, W. R. Johnson, and Jonathan Sapirstein -- F. Charged Lepton-Hadron asymmetries in fixed target experiments / by Paul Souder -- G. Precision electroweak tests at HERA / by Hubert Spiesberger -- V. The weak charged current. A. precision measurements in muon and tau decays / by Wulf Fetscher and H.-J. Gtrber -- B. Symmetry-tests in semileptonic weak interactions : a search for new physics / by Jules Dtutsch and Paid Quin -- C. Universality of the weak interactions / by Alberto Sirlin -- D. Beta decay and muon decay beyond the standard model / by Peter Herczeg -- VI. Precision tests at hadron colliders / by Kevin Einsweiler -- VII. Implications of precision experiments. A. Tests of the standard model and searches for new physics / by Paul Langacker -- B. Exotic fermions / by David London -- VIII . The future / by Mingxing Luo

Author : Martin Erdmann
Publisher : Springer Science & Business Media
Page : 533 pages
File Size : 22,67 MB
Release : 2012-12-06
Category : Science
ISBN : 3642555241

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Hadron colliders probe physics at new energy frontiers and search for new particles and forces. In addition, hadron colliders now provide also an environment for precision physics. The present volume collects the results from recently completed runs at major colliders as well as new ideas about collider physics and techniques. It will serve as the main source of reference in the field for many years to come.

Author : Michael J. Ramsey-Musolf
Publisher :
Page : 5 pages
File Size : 49,26 MB
Release : 2003
Category :
ISBN :

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The research supported by this grant was carried out in four areas: (a) physics beyond the Standard Model (SM) (b) fundamental symmetries (c) the interpretation of precision electroweak measurements (d) topics in hadron structure.

Author : I.J. Douglas MacGregor
Publisher : CRC Press
Page : 474 pages
File Size : 17,14 MB
Release : 2006-07-07
Category : Science
ISBN : 1482286149

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Straddling the traditional disciplines of nuclear and particle physics, hadron physics is a vital and extremely active research area, as evidenced by a 2004 Nobel prize and new research facilities, such as that scheduled to open at CERN. Scientifically it is of vital importance in extrapolating our knowledge of quark-gluon physics at the sub-nucleo

Author : Serge Kox
Publisher : Springer Science & Business Media
Page : 198 pages
File Size : 32,43 MB
Release : 2007-06-07
Category : Science
ISBN : 3540263454

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Almost 50 years after the proposal of Lee and Young in 1956 to test the hypothesis of parity violation in weak interactions and the subsequent experimental verification of parity violation by C. S. Wu, parity violation has today become a useful property of weak interactions. This is due to the fact that the focus nowadays has changed: parity violation in weak interactions is no more a topic of investigation but is used as a tool in many different fields ranging from nuclear physics to the search for the hidden extra dimensions requested by string theory. For our first workshop which took place June 5-8, 2002, at the Institut fiir Ke- physik of the Johannes Gutenberg-Universitat Mainz, we concentrated on the in vestigation of the strangeness contribution in the nucleon. This book contains the refereed and selected papers of the second workshop "From Parity Violation to Hadron Structure and more (Part II)", which took place June 8-11, in the Labo- toire de Physique Subatomique et de Cosmologie, in Grenoble. These papers appear in EPJAdirect, the electronic-only part of EPJA, and they are accessible without restrictions. They will also appear in printed form and can be ordered through Springer. The excellent presentations show the dramatic and steady progress in the accuracy of measured parity violating asymmetries over the last few years.

Author : K. de Jager
Publisher : Springer Science & Business Media
Page : 256 pages
File Size : 49,84 MB
Release : 2008-06-21
Category : Science
ISBN : 3540744134

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This book contains the proceedings of the third international workshop on From Parity Violation to Hadronic Structure and More. The many applications of parity violation are way beyond the scope of what Lee and Yang could have imagined fifty years after their proposal. For the physics topics discussed during this workshop, the application of parity violation has become a standard work horse allowing for the extraction of many physics topics in different experiments.