Isospin conservation and ``poisson-like'' multiplicity distributions
Abstract
Data on charged particle multiplicities and on the production of neutral particles are used to calculate a lower bound on the dispersion of the distribution of the total number of particles in the final state of hadron-hadron collisions. It is shown that this bound is an approximately linear function of <nch>, the mean of the number nch of charged particles in the final state. It is argued that this rules out the possibility that the production of particles can be described by a single ``Poisson-like'' mechanism, no matter what isospin conserving hypothesis is used. It is also argued that such models will inevitably fail to reproduce the available data on the mean number of neutrals produced when nch is known.
- Publication:
-
Physics Letters B
- Pub Date:
- February 1974
- DOI:
- 10.1016/0370-2693(74)90020-3
- Bibcode:
- 1974PhLB...48..235K