Negative binomials and multiplicity distributions in 250 GeV/cK + and π+ interactions on Al and Au nuclei
| Autor: | K. Olkiewicz, B. B. Levchenko, F. Botterweck, H. Boettcher, A. Eskreys, B. Machowski, G. R. Gulkanyan, K. Dziunikowska, A. B. Michałowska, V. I. Nikolaenko, R. Wischnewski, V. M. Ronjin, P. van Hal, F. Verbeure, I. V. Ajinenko, Yu. Belokopytov, A. M. Rybin, P. V. Chliapnikov, R. Sh. Hakobyan, O. G. Tchikilev, W. Kittel, L. Scholten, Yu. A. Golubkov, Lidia Smirnova, F. Meijers, M. Charlet, R. Pöllänen, H. Saarikko, Helena Bialkowska, Z. C. Garutchava, D. A. De Wolf, T. Haupt, A. M. F. Endler, F. Crijns, Danuta Kisielewska, V. A. Uvarov, A. De Roeck |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Physics
Particle physics Physics and Astronomy (miscellaneous) Meson 010308 nuclear & particles physics Negative binomial distribution Parton Multiplicity (mathematics) 01 natural sciences Nuclear physics 0103 physical sciences Rapidity Nuclear Experiment 010306 general physics Engineering (miscellaneous) |
| Zdroj: | Zeitschrift für Physik C Particles and Fields. 46:569-582 |
| ISSN: | 1434-6052 0170-9739 |
| Popis: | The negative binomial distribution (NBD) is fitted to all charged and to negative particle multiplicity distributions in restricted rapidity intervals, both in the forward and backward c.m. hemispheres of positive meson interactions on Al and Au nuclei. For negative particle multiplicity distributions, the NBD parameters are also determined as a function ofng, the number of grey tracks, corresponding to varying number of intranuclear collisions. The data are interpreted in terms of the clan picture of Giovannini and Van Hove and compared to the MCMHA and Fritiof models. Both models reproduce quite well the global multiplicity distributions, but not when sub-samples are considered with fixed number of grey tracks. Regularities are better visible on the parton than on the particle level. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink