Transverse energy measurements in proton-nucleus interactions at high energy

Akesson, T.; Almehed, S.; Angelis, A. L. S.; Atherton, H.; Aubry, P.; Bartel, H. W.; Beaudoin, G.; Beaulieu, J. M.; Beker, H.; Benary, O.; Bettoni, D.; Bisi, V.; Blevis, I.; Boggild, H.; Cleland, W.; Clemen, M.; Collick, B.; Corriveau, F.; Dagan, S.; Dederichs, K.; Dell'Uomo, S.; Depommier, P.; Devenish, R. C. E.; Digiacomo, N.; Diliberto, S.; Dodd, J. R.; Dolgoshein, B.; Drees, A.; En'Yo, H.; Erlandson, B.; Esten, M. J.; Fabjan, C. W.; Fischer, P.; Fraenkel, Z.; Gaidot, A.; Gibrat Debu, F.; Giubellino, P.; Glassel, P.; Goerlach, U.; Haglund, R.; Hamel, L. A.; Hecke, H.; Hedberg, V.; Heifetz, R.; Holscher, A.; Jacak, B.; Jarlskog, G.; Johansson, S.; Kraner, H.; Kroh, V.; Lamarche, F.; Leroy, C.; Lissauer, D.; London, G.; Lorstad, B.; Lounis, A.; Martelli, F.; Marzari Chiesa, A.; Masera, Massimo; Mazzoni, M. A.; Mazzucato, E.; Mccubbin, N. A.; Mcgaughey, P.; Meddi, F.; Mjornmark, 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.; Sondheim, W.; Specht, H. J.; Stern, M.; Stumer, I.; Sunier, J. W.; Tcherniatin, V.; Thodberg, H. H.; Thompson, J.; Tikhomirov, V.; Tserruya, I.; Vasseur, G.; Veenhof, R.; Wigmans, R.; Yepes, P.

doi:10.1007/BF01560341

The results of two sets of transverse energy measurements, performed with incident proton beams of 200 and 450 GeV/c momentum on several nuclear targets, are presented. The transverse energy cross sections dσ/dE T are measured in a pseudorapidity range including the target fragmentation region (−0.1<η<2.9) for both data sets and also in a nearly complete pseudorapidity coverage (−0.1<η<5.5) for the data taken at 200 GeV/c incident momentum. A comparison is made of the transverse energy distributions in the target fragmentation region and in the full η region. We find that the mean value of pseudorapidity of the dE T /dη distributions shifts towards the target fragmentation region as the atomic mass number of the target increases or a selection of high transverse energy events is made. A parametrization based on a simple geometrical nucleonnucleon scattering approach was found to be inadequate to describe all features of the transverse energy distributions. Finally, the VENUS model is compared with the experimental data.