Phase space dependence of the multiplicity distribution in π and pp collisions at 250 GeV/c.

Autor: Adamus, M., Agababyan, N., Ajinenko, I., Belokopytov, Yu., Białkowska, H., Böttcher, H., Chliapnikov, P., Crijns, F., Roeck, A., Wolf, E., Dziunikowska, K., Endler, A., Friebel, W., Graessler, H., Hal, P., Karamyan, J., Kisielewska, D., Kittel, W., Kurnosenko, A., Levchenko, B.
Zdroj: Zeitschrift für Physik. C, Particles & Fields; 1988, Vol. 37 Issue 2, p215-229, 15p
Abstrakt: The charged particle multiplicity distribution has been studied for non-single-diffractive π p and pp collisions at $$\sqrt s = 22$$ GeV, for full phase space as well as for intervals in rapidity, azimuthal angle and transverse momentum. In general, the multiplicity distribution is well described by a negative binomial. From comparison of the distribution for negative or positive particles to that of all charged particles, cascading is favoured as an interpretation over stimulated emission. Interesting consequences follow from a comparison of our results to those at collider energies and to e e data at comparable energy. Furthermore, evidence is given that the multiplicity distribution is not exactly of negative binomial type in every (connected or disconnected) phase space region. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index