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Scaling Study Of The Pion Electroproduction Cross Sections And The Pion Form Factor
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Book Synopsis Scaling Study of the Pion Electroproduction Cross Sections and the Pion Form Factor by :
Download or read book Scaling Study of the Pion Electroproduction Cross Sections and the Pion Form Factor written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The $^{1}$H($e, e^\prime \pi^+$)n cross section was measured for a range of four-momentum transfer up to $Q^2$=3.91 GeV$^2$ at values of the invariant mass, $W$, above the resonance region. The $Q^2$-dependence of the longitudinal component is consistent with the $Q^2$-scaling prediction for hard exclusive processes. This suggests that perturbative QCD concepts are applicable at rather low values of $Q^2$. Pion form factor results, while consistent with the $Q^2$-scaling prediction, are inconsistent in magnitude with perturbative QCD calculations. The extraction of Generalized Parton Distributions from hard exclusive processes assumes the dominance of the longitudinal term. However, transverse contributions to the cross section are still significant at $Q^2$=3.91 GeV$^2$.
Book Synopsis The Pion Charge Form Factor Through Pion Electroproduction by :
Download or read book The Pion Charge Form Factor Through Pion Electroproduction written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of Jefferson Lab experiment E01-004 (F?-2) was the measurement of the longitudinal and transverse cross sections via pion electroproduction from hydrogen and deuterium for the purpose of extracting the charged pion form factor using pole dominance. The data were taken at two values of Q2 (1.60 and 2.45 GeV/c)2. In order to attain full coverage in R?, charged pions were detected in parallel kinematics (along the direction of momentum transfer, q), and at ±3 degrees off the direction of momentum transfer. For each Q2 data were taken for two values of the virtual photon polarization,?, respectively. All data were taken at a fixed center of mass energy, W=2.22 GeV. The longitudinal and transverse pieces of the cross section were separated using the Rosenbluth separation method.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-05 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Proposal for Determining the Electromagnetic Form Factor of the Pion by : William Robert Frazer
Download or read book A Proposal for Determining the Electromagnetic Form Factor of the Pion written by William Robert Frazer and published by . This book was released on 1959 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1982 with total page 1696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Threshold Photo and Electroproduction of Pions from Nuclei by : Edward T. Dressler
Download or read book Threshold Photo and Electroproduction of Pions from Nuclei written by Edward T. Dressler and published by . This book was released on 1977 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurement of the Pion Form Factor by Coincidence Electroproduction by : William Wesley Ash
Download or read book Measurement of the Pion Form Factor by Coincidence Electroproduction written by William Wesley Ash and published by . This book was released on 1967 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Determination of the Charged Pion Form Factor at Q2 by :
Download or read book Determination of the Charged Pion Form Factor at Q2 written by and published by . This book was released on 2006 with total page 192001 pages. Available in PDF, EPUB and Kindle. Book excerpt: The H(e, e(prime)pi+)n cross section was measured at four-momentum transfers of Q2=1.60 and 2.45 GeV2 at an invariant mass of the photon nucleon system of W=2.22 GeV. The charged pion form factor (F{sub pi}) was extracted from the data by comparing the separated longitudinal pion electroproduction cross section to a Regge model prediction in which F{sub pi} is a free parameter. The results indicate that the pion form factor deviates from the charge-radius constrained monopole form at these values of Q2 by one sigma, but is still far from its perturbative Quantum Chromo-Dynamics prediction.
Download or read book INIS Atomindex written by and published by . This book was released on 1983 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Energy Research and Development Administration. Technical Information Center Publisher : ISBN 13 : Total Pages :588 pages Book Rating :4.3/5 (129 download)
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration. Technical Information Center
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pion-Electroproduction by : Edoardo Amaldi
Download or read book Pion-Electroproduction written by Edoardo Amaldi and published by Springer. This book was released on 2006-04-11 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High energy physics index written by and published by . This book was released on 1985 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis I. Photoproduction and Electroproduction of Pions as a Possible Way to Measure the Electromagnetic Structure of the Pion by : Fokion Timoleon Hadjioannou
Download or read book I. Photoproduction and Electroproduction of Pions as a Possible Way to Measure the Electromagnetic Structure of the Pion written by Fokion Timoleon Hadjioannou and published by . This book was released on 1961 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Single Pion Electroproduction Data from CLAS. by : Inna Aznauryan
Download or read book Analysis of Single Pion Electroproduction Data from CLAS. written by Inna Aznauryan and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysis of the single pion electroproduction data is one of the most powerful tools in investigating the nucleon resonances in the first and second resonance regions. Recent pion electroproduction experiments using CLAS detector at Jefferson Lab for the first time provides us with data for the cross sections and the single beam spin asymmetries for both epto e' n pi^+ and epto e' p pi^0 channels. In order to analyze this data an analysis program based on the Mainz unitary isobar model was developed at Jefferson Lab. The single pion electroproduction cross sections and the single beam asymmetry data were fitted simultaneously to obtain the resonant amplitudes for the excited states in the first two nucleon resonance regions. Preliminary results will be presented for the electroproduction amplitudes for the S_11(1535) and D_13(1520) resonances.
Download or read book Physics Briefs written by and published by . This book was released on 1983 with total page 1382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Photoproduction and Electroproduction of Pions in the Region of the N (1238) by : Nicim Zagury
Download or read book Photoproduction and Electroproduction of Pions in the Region of the N (1238) written by Nicim Zagury and published by . This book was released on 1965 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
