NN Correlations Measured in 3He(e,e'pp)n

Details NN Correlations Measured in 3He(e,e'pp)n NN Correlations Measured in 3He(e,e'pp)n

2002-09-19

arxiv.org/abs/nucl-ex/0209014v2

Eur.Phys.J. A17 (2003) 429-432

Physics

Nuclear Physics

Nuclear Experiment

4 pages, 4 included figures, invited talk at the Conference on Electron-Nucleus Scattering VII, Elba, Italy, June 2002 Version

Scientific paper

10.1140/epja/i2002-10187-4

We have measured the $^3$He(e,e$'$pp)n{} reaction in the Jefferson Lab CLAS with 2.2 and 4.4 GeV electrons. We looked at the energy distribution of events with all three nucleons at high momentum (p > 250 MeV/c). This distribution has peaks where two nucleons each have 20% or less of the energy transfer (ie: the third or `leading' nucleon carries most of the kinetic energy). The angular distribution of these two `fast' nucleons shows a very large back-to-back peak, indicating the effect of correlations. While there is some theoretical disagreement, experimental evidence, plus calculations at lower energy by W. Glockle, indicates that these events are primarily sensitive to NN correlations.

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