Extracting the number of short-range correlated nucleon pairs from inclusive electron scattering data [electronic resource]
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| Corporate Authors: | , |
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Department of Energy. Office of Science ; Distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
2021.
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| Subjects: |
| Abstract: | The extraction of the relative abundances of short-range correlated (SRC) nucleon pairs from inclusive electron scattering is studied using the generalized contact formalism (GCF) with several nuclear interaction models. GCF calculations can reproduce the observed scaling of the cross-section ratios for nuclei relative to deuterium at high xB and large Q<sup>2</sup>, a<sub>2</sub>=(?<sub>A</sub>/A)/(?<sub>d</sub>/2). In the nonrelativistic instant-form formulation, the calculation is very sensitive to the model parameters and only reproduces the data using parameters that are inconsistent with ab initio many-body calculations. Using a light-cone GCF formulation significantly decreases this sensitivity and improves the agreement with ab initio calculations. The ratio of similar mass isotopes, such as <sup>40</sup>Ca and <sup>48</sup>Ca, should be sensitive to the nuclear asymmetry dependence of SRCs, but is found to also be sensitive to low-energy nuclear structure. Thus the empirical association of SRC pair abundances with the measured a2 values is only accurate to about 20%. Finally, improving this will require cross-section calculations that reproduce the data while properly accounting for both nuclear structure and relativistic effects. |
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| Item Description: | Published through Scitech Connect. 03/15/2021. "Journal ID: ISSN 2469-9985." "PRVCAN." Weiss, R. ; Denniston, A. W. ; Pybus, J. R. ; Hen, O. ; Piasetzky, E. ; Schmidt, A. ; Weinstein, L. B. ; Barnea, N. ; Pennsylvania State Univ., University Park, PA (United States) Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States) Old Dominion Univ., Norfolk, VA (United States) Israeli Science Foundation. |
| Physical Description: | Size: Article No. L031301 : digital, PDF file. |