Proton distributions in the target fragmentation region in proton-nucleus and nucleus-nucleus collisions at high energies

Åkesson, T.; Almehed, S.; Angelis, A. L. S.; Armenise, N.; Atherton, H.; Aubry, P.; Bartels, H. W.; Beaudoin, G.; Beaulieu, J. M.; Beker, H.; Benary, O.; Bettoni, D.; Bisi, V.; Blevis, I.; Bøggild, H.; Cleland, W.; Clemen, M.; Collick, B.; Corriveau, F.; Dagan, S.; Dederichs, K.; Dell'Uomo, S.; Depommier, P.; Devenish, R. C. E.; Liberto, S.; Digiacomo, N.; Dodd, J. R.; Dolgoshein, B.; Drees, A.; En'Yo, H.; Erlandsson, B.; Esten, M. J.; Fabjan, C. W.; Fischer, P.; Fraenkel, Z.; Gaidot, A.; Gibrat Debu, F.; Giubellino, P.; Glässel, P.; Goerlach, U.; Haglund, R.; Hamel, L. A.; Hecke, H.; Hedberg, V.; Heifetz, R.; Hölscher, A.; Jacak, B.; Jarlskog, G.; Johansson, S.; Kraner, H.; Kroh, V.; Lamarche, F.; Leroy, C.; Lissauer, D.; London, G.; Lörstad, B.; Lounis, A.; Martelli, F.; Masera, Massimo; Marzari Chiesa, A.; Mazzoni, M. A.; Mazzucato, E.; Mccubbin, M. L.; Mccubbin, N. A.; Mcgaughey, P.; Meddi, F.; Mjörnmark, U.; Muciaccia, M. T.; Muraviev, S.; Murray, M.; Neubert, M.; Nilsson, S.; Olsen, L.; Oren, Y.; Pansart, J. P.; Park, Y. M.; Pfeiffer, A.; Piuz, F.; Polychronakos, V.; Poulard, G.; Price, M.; Rahm, D.; Ramello, L.; Riccati, L.; Romano, G.; Rosa, G.; Sandor, L.; Schukraft, J.; Sekimoto, M.; Sellden, B.; Seman, M.; Shmeleva, A.; Sidorov, V.; Simone, S.; Sirois, Y.; Sletten, H.; Smirnov, S.; Soltani, J.; Sondheim, W.; Specht, H. J.; Stern, E.; Stumer, I.; Sunier, J.; Tcherniatin, V.; Thodberg, H. H.; Thompson, J.; Tikhomirov, V.; Tserruya, I.; Vasseur, G.; Veenhof, R.; Wigmans, R.; Yepes, P.

doi:10.1007/BF01597554

We present measurements of the rapidity and transverse-momentum distributions of the protons emitted in S+W, O+W, andp+W reactions at 200 GeV/A around the target rapidity (y=1). The rapidity density rises linearly with the transverse energy for all three systems, but the slope forp+W is much steeper than for O+W and S+W. The rapidity density forp+W is much higher than predicted by summing single nucleonnucleon collisions without any nuclear effects, indicating substantial rescattering of the produced particles. The predictions of the VENUS 3 model, including rescattering, show reasonable agreement with the data for all three systems. We do not have evidence for a strong collective flow of the outgoing particles.