Scaling violations in multiplicity distributions at 200 and 900 GeV

Autor: Ioannis Evangelou, R. S. DeWolf, C. P. Ward, Kerstin Jon-And, C. J. S. Webber, A. Eyring, Nikolaos Manthos, J. J. Reidy, C. Fuglesang, Hermann Schmickler, C. Declercq, Christoph Geich-Gimbel, F. A. Triantis, J. P. Fabre, G. Ekspong, B. Eckart, F. Lotse, T. O. White, Th. Kokott, W. Pelzer, R. Hospes, John Gordon Rushbrooke, L. Burow, L. Fröbel, P.J. Carlson, D. J. Munday, K. Böckmann, L. Van Hamme, Richard E. Ansorge, G. von Holtey, J. E. V. Ovens, G. J. Alner, J. Gaudaen, D. R. Ward, C. Walck, Gaston Wilquet, C. N. Booth, N. Yamdagni, R. Meinke, B. Åsman
Jazyk: angličtina
Rok vydání: 1985
Předmět:
Popis: New data are presented on charged particle multiplicity distributions for non single-diffractive events produced at CM energies s = 200 and 900 GeV. The data were obtained at the CERN antiproton-proton collider operated in a new pulsed mode. The multiplicity distributions are very well described by a negative binomial distribution. The highest energy data show no sign of approaching scaling, confirming our earlier results on the breaking of KNO scaling. The energy variation of the average charged multiplicity can be fitted to a quadratic in ln s or a s0.13 dependence.
Databáze: OpenAIRE