The transverse energy distribution in16O-nucleus collisions at 60 and 200 GeV per nucleon

T. Åkesson, S. Almehed, A. L.S. Angelis, N. Armenise, H. Atherton, P. Aubry, H. W. Bartels, J. H. Bartley, G. Beaudoin, J. M. Beaulieu, H. Beker, O. Benary, D. Bettoni, V. Bisi, I. Blevis, H. Bøggild, A. Breskin, R. Chechik, W. Cleland, M. ClemenB. Collick, F. Corriveau, S. Dagan, K. Dederichs, S. Dell'Uomo, P. Depommier, R. C.E. Devenish, S. Di Liberto, N. Di Giacomo, J. R. Dodd, B. Dolgoshein, A. Dress, H. En'yo, B. Erlandsson, M. J. Esten, C. W. Fabjan, M. Faessler, P. Fischer, Z. Fraenkel, A. Gaidot, I. Gavrilenko, F. Gibrat-Debu, P. Giubellino, P. Glässel, U. Goerlach, R. Haglund, L. A. Hamel, H. van Hecke, V. Hedberg, R. Heifetz, F. F. Heymann, A. Hölscher, S. Huber, B. Jacak, G. Jarslkog, S. Johansson, A. Kalinovski, A. Kantserov, H. Kraner, V. Kroh, F. Lamarche, C. Leroy, D. Lissauer, G. London, B. Lörstad, A. Lounis, T. Ludlam, A. Marzari-Chiesa, M. Masera, S. Mayburov, M. A. Mazzoni, M. L. McCubbin, N. A. McCubbin, P. McGaughey, F. Meddi, U. Mjörnmark, M. T. Muciaccia, M. Murray, M. Neubert, P. Nevski, S. Nilsson, L. Olsen, Y. Oren, J. P. Pansart, Y. M. Park, A. Pfeiffer, F. Piuz, V. Polychronakos, G. Poulard, M. Price, D. Rahm, L. Ramello, L. Riccati, H. Ries, G. Romano, R. Roosen, G. Rosa, J. Russ, J. Schukraft, M. Sekimoto, B. Sellden, M. Seman, A. Shmeleva, P. Shotton, V. Sidorov, S. Simone, Y. Sirois, H. Sletten, S. Smirnov, J. Soltani, W. Sondheim, H. J. Specht, I. Stumer, A. Sumarokov, J. Sunier, V. Tcherniatin, H. H. Thodberg, J. Thompson, V. Tikhomirov, P. T. Trent, I. Tserruya, R. Wigmans, W. Willis

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Abstract

Transverse-energy distributions have been measured in the pseudorapidity region -0.1<ηlab<2.9 for oxygen-nucleus collisions at incident energies of 60 and 200 GeV per nucleon for Al, Ag, and W target nuclei. The cross-section for the heaviest target nuclei at the highest incident energy is measured over 5 orders of magnitude and out to a maximum ET of 200 GeV. Measurements of the differential density dET/dηlab as a function of ηlab are presented. In the pseudorapidity region -0.1<ηlab<2.9 the transverse energy for an average central collision is proportional to ≈A0.5, while the fraction of the total transverse energy measured in an extended region of ηlab>2.9 decreases with increasing A. The distributions are compared with the predictions of a dual parton model. Finally the question of the energy density is addressed.

Original languageEnglish
Pages (from-to)383-395
Number of pages13
JournalZeitschrift für Physik C Particles and Fields
Volume38
Issue number3
DOIs
StatePublished - Sep 1988

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