Measurement of quasi-elastic 12C(p,2p) scattering at high momentum transfer

Details Measurement of quasi-elastic 12C(p,2p) scattering at high momentum transfer Measurement of quasi-elastic 12C(p,2p) scattering at high momentum transfer

1997-10-16

arxiv.org/abs/nucl-ex/9710002v1

Phys.Lett.B437:257-263,1998

Physics

Nuclear Physics

Nuclear Experiment

4 pages including 3 figures

Scientific paper

10.1016/S0370-2693(98)01000-4

We measured the high-momentum quasi-elastic 12C(p,2p) reaction (at center of mass angle near 90 degrees) for 6 and 7.5 GeV/c incident protons. The three-momentum components of both final state protons were measured and the missing energy and momentum of the target proton in the nucleus were determined. The validity of the quasi-elastic picture was verified up to Fermi momenta of about 450 MeV/c, where it might be questionable. Transverse and longitudinal Fermi momentum distributions of the target proton were measured and compared to independent particle models which do not reproduce the large momentum tails. We also observed that the transverse Fermi distribution gets wider as the longitudinal component increases in the beam direction, in contrast to a simple Fermi gas model.

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