Inclusive negative particle p spectra in p-nucleus and nucleus-nucleus collisions at 200 GeV per nucleon

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

The HELIOS experiment has measured inclusive p spectra of negative particles in the rapidity region 1.0<y<1.9. The general shape of the p spectra in p +W, O+W and S+W is similar, but cannot be described by a single exponential. Compared to p+p collisions, an excess is observed for low and high p. This effect increases with the projectile mass. Except for very low E, the average transverse momentum <p> is found to be approximately constant up to the highest accessible values of E.

Original languageEnglish
Pages (from-to)361-367
Number of pages7
JournalEuropean Physical Journal C
Volume46
Issue number3
DOIs
StatePublished - Sep 1990

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