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Nucleon Form Factors From Generalized Parton Distributions
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Book Synopsis Nucleon Form Factors from Generalized Parton Distributions by :
Download or read book Nucleon Form Factors from Generalized Parton Distributions written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We discuss the links between Generalized Parton Distributions (GPDs) and elastic nucleon form factors. These links, in the form of sum rules, represent powerful constraints on parameterizations of GPDs. A Regge parameterization for GPDs at small momentum transfer, is extended to the large momentum transfer region and it is found to describe the basic features of proton and neutron electromagnetic form factor data. This parameterization is used to estimate the quark contribution to the nucleon spin.
Book Synopsis Generalized Parton Distributions from Nucleon Form Factor Data by :
Download or read book Generalized Parton Distributions from Nucleon Form Factor Data written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nucleon Form Factors, Generalized Parton Distributions and Quark Angular Momentum by : Markus Diehl
Download or read book Nucleon Form Factors, Generalized Parton Distributions and Quark Angular Momentum written by Markus Diehl and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nucleon Form Factors and Moments of Generalized Parton Distributions Using Nf by :
Download or read book Nucleon Form Factors and Moments of Generalized Parton Distributions Using Nf written by and published by . This book was released on 2013 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Deeply Exclusive Processes and Generalized Parton Distributions by : Marc Vanderhaegen
Download or read book Deeply Exclusive Processes and Generalized Parton Distributions written by Marc Vanderhaegen and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We discuss how generalized parton distributions (GPDs) enter into hard exclusive processes, and focuses on the links between GPDs and elastic nucleon form factors. These links, in the form of sum rules, represent powerful constraints on parameterizations of GPDs. A Regge parameterization for the GPDs at small momentum transfer -t is extended to the large-t region and it is found to catch the basic features of proton and neutron electromagnetic form factor data. This parameterization allows to estimate the quark contribution to the nucleon spin. It is furthermore discussed how these GPDs at large-t enter into two-photon exchange processes and resolve the discrepancy between Rosenbluth and polarization experiments of elastic electron nucleon scattering.
Book Synopsis Insight Into Nucleon Structure from Generalized Parton Distributions by : R. Edwards
Download or read book Insight Into Nucleon Structure from Generalized Parton Distributions written by R. Edwards and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The lowest three moments of generalized parton distributions are calculated in full QCD and provide new insight into the behavior of nucleon electromagnetic form factors, the origin of the nucleon spin, and the transverse structure of the nucleon.
Book Synopsis Generalized Parton Distributions in Nuclei by : Swadhin k Taneja
Download or read book Generalized Parton Distributions in Nuclei written by Swadhin k Taneja and published by . This book was released on 2006 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Exploring Proton Structure Using Lattice QCD by : Dru Bryant Renner
Download or read book Exploring Proton Structure Using Lattice QCD written by Dru Bryant Renner and published by . This book was released on 2004 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: We calculate moments of the generalized parton distributions of the nucleon using lattice QCD. The generalized parton distributions determine the angular momentum decomposition of the nucleon and the transverse distributions of partons within the nucleon. Additionally, the generalized parton distributions reduce to the elastic form factors and ordinary parton distributions in particular kinematic limits. Thus by calculating moments of the generalized parton distributions in lattice QCD we can explore many facets of the structure of the nucleon. In this effort, we have developed the building block method to determine all the lattice correlation functions which con- tribute to the off forward matrix elements of the twist two operators. These matrix elements determine the generalized form factors of the nucleon which in turn give the moments of the generalized parton distributions. Thus we use our building block method to calculate all the matrix elements of the lowest twist two operators. Fur- thermore, we use our method to construct an overdetermined set of matrix elements allowing a more accurate calculation of the generalized form factors.
Book Synopsis First Moments of Nucleon Generalized Parton Distributions by :
Download or read book First Moments of Nucleon Generalized Parton Distributions written by and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We extrapolate the first moments of the generalized parton distributions using heavy baryon chiral perturbation theory. The calculation is based on the one loop level with the finite range regularization. The description of the lattice data is satisfactory, and the extrapolated moments at physical pion mass are consistent with the results obtained with dimensional regularization, although the extrapolation in the momentum transfer to t=0 does show sensitivity to form factor effects, which lie outside the realm of chiral perturbation theory. We discuss the significance of the results in the light of modern experiments as well as QCD inspired models.
Book Synopsis Insight Into Nucleon Structure from Lattice Calculations of Moments of Parton and Generalized Parton Distributions by :
Download or read book Insight Into Nucleon Structure from Lattice Calculations of Moments of Parton and Generalized Parton Distributions written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This talk presents recent calculations in full QCD of the lowest three moments of generalized parton distributions and the insight they provide into the behavior of nucleon electromagnetic form factors, the origin of the nucleon spin, and the transverse structure of the nucleon. In addition, new exploratory calculations in the chiral regime of full QCD are discussed.
Book Synopsis Generalized Parton Distributions and Angular Momentum Decomposition of the Nucleon by : Hikmat Bahadur BC
Download or read book Generalized Parton Distributions and Angular Momentum Decomposition of the Nucleon written by Hikmat Bahadur BC and published by . This book was released on 2010 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nucleon Electromagnetic Form Factors by :
Download or read book Nucleon Electromagnetic Form Factors written by and published by . This book was released on 2007 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been much activity in the measurement of the elastic electromagnetic proton and neutron form factors in the last decade, and the quality of the data has greatly improved by performing double polarization experiments, in comparison with previous unpolarized data. Here we review the experimental data base in view of the new results for the proton, and neutron, obtained at JLab, MAMI, and MIT-Bates. The rapid evolution of phenomenological models triggered by these high-precision experiments will be discussed, including the recent progress in the determination of the valence quark generalized parton distributions of the nucleon, as well as the steady rate of improvements made in the lattice QCD calculations.
Download or read book Form Factors from Lattice QCD. written by and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Precision computation of hadronic physics with lattice QCD is becoming feasible. The last decade has seen precent-level calculations of many simple properties of mesons, and the last few years have seen calculations of baryon masses, including the nucleon mass, accurate to a few percent. As computational power increases and algorithms advance, the precise calculation of a variety of more demanding hadronic properties will become realistic. With this in mind, I discuss the current lattice QCD calculations of generalized parton distributions with an emphasis on the prospects for well-controlled calculations for these observables as well. I will do this by way of several examples: the pion and nucleon form factors and moments of the nucleon parton and generalized-parton distributions.
Book Synopsis Generalized Parton Distributions from Hadronic Observables by : Saeed Ahmad
Download or read book Generalized Parton Distributions from Hadronic Observables written by Saeed Ahmad and published by . This book was released on 2008 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nucleon Generalized Parton Distributions from Full Lattice QCD by : LHPC Collaboration
Download or read book Nucleon Generalized Parton Distributions from Full Lattice QCD written by LHPC Collaboration and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spin Structure of the Nucleon by : Erhard Steffens
Download or read book Spin Structure of the Nucleon written by Erhard Steffens and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive survey of the most recent results from the field of quark-gluon structure of the nucleon, in particular how the spin of the nucleon is shared by its constituents. After very intriguing results from CERN and SLAC at the end of the 1980s, the last decade has seen a set of second-generation experiments at high energy accelerators that have yielded precise information on the solution of the 'Spin Crisis' - as well as opening up new questions. The articles are written by experts from the leading collaboration and theory groups as well as providing an expert summary of the state of the art, the book points the way to future research directions. Its main focus is on semi-inclusive and exclusive measurements of deep inelastic lepton scattering, which enables for the first time the determination of the flavor-separated quark spin distributions. Future developments on generalized parton distributions and their interpretation as well as the transverse spin structure are also covered. An indispensable volume for all working in hadronic physics.
Book Synopsis Nucleon Generalized Parton Distributions from Full Lattice QCD by : Ph Hägler
Download or read book Nucleon Generalized Parton Distributions from Full Lattice QCD written by Ph Hägler and published by . This book was released on 2007 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:
