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A Measurement Of Inclusive Quasi Elastic Electron Scattering Cross Sections At High Momentum Transfer
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Book Synopsis A Measurement of Inclusive Quasi-elastic Electron Scattering Cross Sections at High Momentum Transfer by : David Henry Potterveld
Download or read book A Measurement of Inclusive Quasi-elastic Electron Scattering Cross Sections at High Momentum Transfer written by David Henry Potterveld and published by . This book was released on 1989 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Measurement of Inclusive Quasielastic Electron Cross Sections at X > 1 and High Q2 by :
Download or read book A Measurement of Inclusive Quasielastic Electron Cross Sections at X > 1 and High Q2 written by and published by . This book was released on 2002 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiment E89-008 measured inclusive electron scattering cross sections from different nuclei in Hall C at Jefferson Laboratory. Cross sections on the low energy loss side of the quasi-elastic peak (xBj > 1) are extracted for carbon, aluminum, iron and gold. The data cover four-momentum transfers squared of 0.97 to 5.73 GeV 2 =c 2 . The measured cross sections are compared to cross sections calculated using a microscopic spectral function. The cross section results are also analyzed in terms of the two scaling functions F (y) and f(?'). For both the data is found to be independent of the momentum transfer (scaling of the first kind). For f(?') the data is in addition independent of the mass number A (scaling of the second kind) and thus exhibits superscaling properties.
Book Synopsis Precision Measurement of Longitudinal and Transverse Response Functions of Quasi-Elastic Electron Scattering in the Momentum Transfer Range 0.55 GeV /c ≤ |q| ≤ 1.0 GeV /c by : Huan Yao
Download or read book Precision Measurement of Longitudinal and Transverse Response Functions of Quasi-Elastic Electron Scattering in the Momentum Transfer Range 0.55 GeV /c ≤ |q| ≤ 1.0 GeV /c written by Huan Yao and published by . This book was released on 2012 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coulomb Sum Rule states that the integration of the longitudinal response of a nucleus over the range of energy excitation dominated by quasi-elastic proton knock-out process should be equal to the total number of protons in the nucleus. The test of Coulomb Sum Rule will shed light on the question of whether or not the properties of nucleon are modified in the nuclear medium. In order to test the Coulomb Sum Rule in nuclei, a precision measurement of inclusive electron scattering cross sections in the quasi-elastic region was performed at Jefferson Lab. Incident electrons with energies ranging from 0.4 GeV to 4 GeV scattered from 4He, 12C, 56Fe and 208Pb nuclei at four scattering angles ( 15°, 60°, 90°, 120°) and scattered energies ranging from 0.1 GeV to 4 GeV. The Rosenbluth method with proper coulomb corrections is used to extract the transverse and longitudinal response functions at three-momentum transfers in the range 0.55 GeV/c ≤ |q| ≤ 1.0 GeV/c. The Coulomb Sum Rule is determined in the same |q| range and compared to predictions. This work is supported by the Department Of Energy through grant DE-FG02-94ER40844.
Book Synopsis Inclusive Electron Scattering from Nuclei in the Quasielastic Region at Large Momentum Transfer by :
Download or read book Inclusive Electron Scattering from Nuclei in the Quasielastic Region at Large Momentum Transfer written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiment E02-019, performed in Hall C at the Thomas Jefferson National Accelerator Facility (TJNAF), was a measurement of inclusive electron cross sections for several nuclei (2H,3He, 4He, 9Be,12C, 63Cu, and 197Au) in the quasielastic region at high momentum transfer. In the region of low energy transfer, the cross sections were analyzed in terms of the reduced response, F(y), by examining its y-scaling behavior. The data were also examined in terms of the nuclear structure function [nu]WA 2 and its behavior in x and the Nachtmann variable [xi]. The data show approximate scaling of [nu]WA 2 in [xi] for all targets at all kinematics, unlike scaling in x, which is confined to the DIS regime. However, y-scaling observations are limited to the kinematic region dominated by the quasielastic response (y
Book Synopsis Inclusive Electron-Nucleus Scattering at X] 1 and High Momentum Transfer by : Donal Day
Download or read book Inclusive Electron-Nucleus Scattering at X] 1 and High Momentum Transfer written by Donal Day and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We will present results from a recently completed experiment (E02-019) at Jefferson Lab in which 6 GeV electrons were scattered from a series of both light and heavy nuclei at high momentum transfers. The scattered electrons were detected in the High Momentum Spectrometer in Hall C at angles between 18 and 50 degrees and with momenta between 2 and 5 GeV. This experiment extends the kinematic coverage of inclusive electron-nucleus scattering at high momentum transfer to large Bjorken x, forbidden for the free nucleon. These new data present the opportunity to the investigate the transition from a regime where the cross sections are dominated by quasielastic scattering and where nucleon degrees of freedom hold sway, to one where the reaction is deep inelastic in nature and described by the more fundamental quarks and gluons. A brief description of the experiment will be followed by a presentation of the preliminary data along with a discussion of the scaling behavior of the data.
Book Synopsis PRECISION MEASUREMENT OF QUASI-ELASTIC TRANSVERSE AND LONGITUDINAL RESPONSE FUNCTIONS IN THE RANGE 0.55 GeV/cj by : Hamza Atac
Download or read book PRECISION MEASUREMENT OF QUASI-ELASTIC TRANSVERSE AND LONGITUDINAL RESPONSE FUNCTIONS IN THE RANGE 0.55 GeV/cj written by Hamza Atac and published by . This book was released on 2017 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Coulomb Sum is defined by the quasi-elastic nucleon knock-out process and it is the integration of the longitudinal response function over the energy loss of the incident electron. The Coulomb sum goes to the total charge at large q. The existing measurements of the Coulomb Sum Rule show disagreement with the theoretical calculations for the medium and heavy nuclei. To find the reason behind the disagreement might answer the question of whether the properties of the nucleons are affected by the nuclear medium or not. In order to determine the Coulomb Sum in nuclei, a precision measurement of inclusive electron scattering in the quasi-elastic region was performed at the Thomas Jefferson National Accelerator Facility. Incident electrons with energies ranging from 0:4 GeV to 4 GeV scattered off 4He,12C,56Fe and 208Pb nuclei at four scattering angles (15;60;90;120) and scattered energies ranging from 0:1 GeV to 4 GeV. The Born cross sections were extracted for the Left High Resolution Spectrometer (LHRS) and the Right High Resolution Spectrometer 56Fe data. The Rosenbluth separation was performed to extract the transverse and longitudinal response functions at 650 MeV three-momentum transfer. The preliminary results of the longitudinal and transverse functions were extracted for 56Fe target at 650 MeV three-momentum transfer.
Book Synopsis A Measurement of Inclusive Quasi-elastic Electron Cross Sections at X > 1 and High Q2 by : Thomas Claude Petitjean
Download or read book A Measurement of Inclusive Quasi-elastic Electron Cross Sections at X > 1 and High Q2 written by Thomas Claude Petitjean and published by . This book was released on 2000 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Final State Effects in Inclusive Quasielastic Electron Scattering from Nuclei by :
Download or read book Final State Effects in Inclusive Quasielastic Electron Scattering from Nuclei written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The impulse approximation (IA) predicts that momentum distributions, n/sub k/, in many-body systems should be measurable by inclusive quasielastic scattering at high energy and momentum (w, Q) transfer. The observations that the cross section appears to satisfy ''Y-scaling'' (i.e., is a function not of both w and Q of a single variable, Y) is usually taken as a signature of the IA. In nuclear physics, inelastic electron scattering at GeV energies should reveal the high momentum components of the nuclear wave function. In quantum fluids, neutron scattering at hundreds of MeV energies should measure the Bose condensate in superfluid 4He and the Fermi surface discontinuity and depletion of the Fermi sea in 3He. In molecular and condensed matter systems, X-ray Compton scattering at keV energies reveals electronic n/sub k/. Such experiments test many-body wave functions calculated by methods such as Green Function and Path Integral Monte Carlo, and Fermi Hypernetted Chain. However, an outstanding issue has been the corrections to the IA due to the scattering of the recoiling particle from neighboring particles, which are termed ''final state effects'' (FSE). The FSE should be especially important in nuclei and quantum fluids where the potentials have steeply repulsive cores. While there have been a variety of theories proposed for FSE, until now none has been adequately tested by experiment. Recently, the ''hard core perturbation theory'' (HCPT) for FSE in quantum fluids by Silver has been successfully compared to new neutron scattering measurements on 4He by P.E. Sokol and colleagues. In this paper, we shall discuss the lessons of this success for the extraction of n/sub k/ in nuclei by inclusive ''quasielastic electron-nucleus scattering'' (QENS). 19 refs., 12 figs.
Book Synopsis Quasielastic (e, E'p) Scattering at Large Momentum Transfer by :
Download or read book Quasielastic (e, E'p) Scattering at Large Momentum Transfer written by and published by . This book was released on 1997 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coincidence cross sections for (e, e' p) quasi-elastic scattering were measured at CEBAF with high statistical precision for C, Fe, and Au targets for 0.6
Book Synopsis Quasielastic (e, E[prime]p) Scattering at Large Momentum Transfer by :
Download or read book Quasielastic (e, E[prime]p) Scattering at Large Momentum Transfer written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Coincidence cross sections for (e, e[prime] p) quasi-elastic scattering were measured at CEBAF with high statistical precision for C, Fe, and Au targets for 0.6
Book Synopsis Inclusive Nuclear Electromagnetic Response in the Quasielastic Region at Large Momentum Transfer by : Christopher Douglas Cothran
Download or read book Inclusive Nuclear Electromagnetic Response in the Quasielastic Region at Large Momentum Transfer written by Christopher Douglas Cothran and published by . This book was released on 2000 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-04 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Quasi-elastic Scattering of Electrons from 40Ca at High Momentum Transfer by : Terence Carter Yates
Download or read book Quasi-elastic Scattering of Electrons from 40Ca at High Momentum Transfer written by Terence Carter Yates and published by . This book was released on 1991 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inclusive Measurements at X]1 with High Energy Beams by :
Download or read book Inclusive Measurements at X]1 with High Energy Beams written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Inclusive electron scattering measured in the kinematic range of Bjorken x>1 and high momentum transfers can provide important information on reaction mechanisms through the study of scaling violations, and can provide insight on the transition from deep inelastic scattering from quarks to quasielastic scattering from nucleons. Some preliminary results from Jefferson Lab Experiment E89-008 will be presented as well as the increased kinematic range expected for the approved E89-008 Extension with a 6 GeV beam. The increased scope for physics studies with a 12 GeV beam and improved Hall C instrumentation are then discussed.
Book Synopsis Radial Eigenfunctions, Phase Shifts, Total Elastic, Differential Elastic, and Momentum Transfer Cross Sections for Electrons Scattered from Oxygen and Nitrogen Atoms by : William J. Byatt
Download or read book Radial Eigenfunctions, Phase Shifts, Total Elastic, Differential Elastic, and Momentum Transfer Cross Sections for Electrons Scattered from Oxygen and Nitrogen Atoms written by William J. Byatt and published by . This book was released on 1959 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inclusive Electron - Nucleus Scattering at Large Momentum Transfer by :
Download or read book Inclusive Electron - Nucleus Scattering at Large Momentum Transfer written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Inclusive electron scattering is measured with 4.045 GeV incident beam energy from C, Fe, and Au targets. The measured energy transfers and angles correspond to a kinematic range for Bjorken x>1 and momentum transfers from Q2 = 1-7 (GeV/c)2. When analyzed in terms of the y-scaling function the data show for the first time an approach to scaling for values of the initial nucleon momenta significantly greater than the nuclear matter Fermi momentum (i.e.,>0.3 GeV/c).
Book Synopsis Measurement of the Inclusive Electron Cross-Section from Heavy-Flavour Decays and Search for Compressed Supersymmetric Scenarios with the ATLAS Experiment by : Moritz Backes
Download or read book Measurement of the Inclusive Electron Cross-Section from Heavy-Flavour Decays and Search for Compressed Supersymmetric Scenarios with the ATLAS Experiment written by Moritz Backes and published by Springer. This book was released on 2014-06-11 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part of this thesis presents the measurement of the inclusive cross-section for electron production from heavy-flavour decays in the electron transverse momentum range 7 GeV
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