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arXiv · hep-ex/0104039

Energy Dependence of Nuclear Transparency in C(p,2p) Scattering

A. Leksanov·J. Alster·G. Asryan·Y. Averichev·D. Barton·V. Baturin·N. Bukhtoyarova·A. Carroll·S. Heppelmann·T. Kawabata·Y. Makdisi·E. Minina·I. Navon·A. Malki·H. Nicholson·A. Ogawa·Yu. Panebratsev·E. Piasetzky·A. Schetkovsky·S. Shimanskiy·A. Tang·J. W. Watson·H. Yoshida·D. Zhalov
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Abstract

The transparency of carbon for (p,2p) quasi-elastic events was measured at beam energies ranging from 6 to 14.5 GeV at 90 degrees c.m. The four momentum transfer squared q*q ranged from 4.8 to 16.9 (GeV/c)**2. We present the observed energy dependence of the ratio of the carbon to hydrogen cross sections. We also apply a model for the nuclear momentum distribution of carbon to normalize this transparency ratio. We find a sharp rise in transparency as the beam energy is increased to 9 GeV and a reduction to approximately the Glauber level at higher energies.

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A. Leksanov, J. Alster, G. Asryan, Y. Averichev, D. Barton, V. Baturin, N. Bukhtoyarova, A. Carroll, S. Heppelmann, T. Kawabata, Y. Makdisi, E. Minina, I. Navon, A. Malki, H. Nicholson, A. Ogawa, Yu. Panebratsev, E. Piasetzky, A. Schetkovsky, S. Shimanskiy, A. Tang, J. W. Watson, H. Yoshida, D. Zhalov. 2001-07-20. Energy Dependence of Nuclear Transparency in C(p,2p) Scattering. https://doi.org/10.1103/physrevlett.87.212301

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