Short Range Correlations in Nuclei at Large Xbj Through Inclusive Quasi-Elastic Electron Scattering

Short Range Correlations in Nuclei at Large Xbj Through Inclusive Quasi-Elastic Electron Scattering PDF Author:
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Category :
Languages : en
Pages : 208

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Book Description
The experiment, E08-014, in Hall-A at Jefferson Lab aims to study the short-range correlations (SRC) which are necessary to explain the nuclear strength absent in the mean field theory. The cross sections for 2H, 3He, 4He, 12C, 40Ca and 48Ca, were measured via inclusive quasi-elastic electron scattering from these nuclei in a Q2 range between 0.8 and 2.8 (GeV/c)2 for x>1. The cross section ratios of heavy nuclei to 2H were extracted to study two-nucleon SRC for 1.

Short Range Correlations in Nuclei at Large Xbj Through Inclusive Quasi-Elastic Electron Scattering

Short Range Correlations in Nuclei at Large Xbj Through Inclusive Quasi-Elastic Electron Scattering PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 208

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Book Description
The experiment, E08-014, in Hall-A at Jefferson Lab aims to study the short-range correlations (SRC) which are necessary to explain the nuclear strength absent in the mean field theory. The cross sections for 2H, 3He, 4He, 12C, 40Ca and 48Ca, were measured via inclusive quasi-elastic electron scattering from these nuclei in a Q2 range between 0.8 and 2.8 (GeV/c)2 for x>1. The cross section ratios of heavy nuclei to 2H were extracted to study two-nucleon SRC for 1.

Inclusive Inelastic Electron Scattering from Nuclei

Inclusive Inelastic Electron Scattering from Nuclei PDF Author:
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Languages : en
Pages :

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Book Description
Inclusive electron scattering from nuclei at large x and Q^ is the result of a reaction mechanism that includes both quasi-elastic scattering from nucleons and deep inelastic scattering from the quark consitituents of the nucleons. Data in this regime can be used to study a wide variety of topics, including the extraction of nuclear momentum distributions, the influence of final state interactions and the approach to _v-scaling, the strength of nucleon-nucleon correlations, and the approach to x- scaling, to name a few. Selected results from the recent experiment E02-019 at the Thomas Jefferson National Accelerator Facility will be shown and their relevance discussed.

On the Effects of Short-range Nucleon-nucleon Correlations in the Elastic Electron Scattering by Light Nuclei

On the Effects of Short-range Nucleon-nucleon Correlations in the Elastic Electron Scattering by Light Nuclei PDF Author: Claudio Ciofi Degli Atti
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Category :
Languages : en
Pages : 0

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Inclusive Electron Scattering Form Nuclei in the Quasielastic Region at Large Momentum Transfer

Inclusive Electron Scattering Form Nuclei in the Quasielastic Region at Large Momentum Transfer PDF Author: Nadia Fomin
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Languages : en
Pages :

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Short Range Dynamical Correlations in the 12C Nucleus from Elastic Electron Scattering

Short Range Dynamical Correlations in the 12C Nucleus from Elastic Electron Scattering PDF Author: Claudio Ciofi degli Atti
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Category :
Languages : en
Pages : 18

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Inclusive Electron-Nucleus Scattering at X] 1 and High Momentum Transfer

Inclusive Electron-Nucleus Scattering at X] 1 and High Momentum Transfer PDF Author: Donal Day
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Languages : en
Pages :

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Book Description
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.

Final State Effects in Inclusive Quasielastic Electron Scattering from Nuclei

Final State Effects in Inclusive Quasielastic Electron Scattering from Nuclei PDF Author:
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Languages : en
Pages :

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Book Description
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.

Elastic Electron Scattering from Nuclei and Nucleon - Nucleon Correlations

Elastic Electron Scattering from Nuclei and Nucleon - Nucleon Correlations PDF Author: Wiesław Czyż
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ISBN:
Category :
Languages : en
Pages : 7

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Quasi-elastic Electron Scattering at High Momentum Transfer in Nuclei and Nucleons

Quasi-elastic Electron Scattering at High Momentum Transfer in Nuclei and Nucleons PDF Author: Danny Koh TowSian
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Category :
Languages : en
Pages : 130

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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

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 PDF Author: Huan Yao
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ISBN:
Category :
Languages : en
Pages : 169

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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.