Impulse Approximation limitations to the (e,e'p) reaction on ^208Pb: search for long range correlations at high missing momenta
Abstract
Experiment E06007 at Jefferson Lab measured cross sections for the (e,e'p) reaction at constant (q,φ) for Q^2 = 0.81 GeV^2 over a range of missing momenta from 0 to 500 MeV/c. Spectroscopic factors for states near the Fermi level are typically in the range of 0.65-0.70, a feature usually attributable to short range and long range correlations. It has been conjectured that long range correlations should also have a significant effect on the strength of high momentum components of single nucleon states near the fermi level. Cross sections for missing momenta from 300 MeV/c to 500 MeV/c for the ^208Pb(e,e'p) reaction going to the low lying states of ^207Tl will be presented and compared to theoretical predictions using various prescriptions for including correlations. Data from two recent runs will be presented.
- Publication:
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APS April Meeting Abstracts
- Pub Date:
- May 2009
- Bibcode:
- 2009APS..APRJ12004C