Multiplicity distributions in e+e annihilations at petra energies

PLUTO Collaboration

Research output: Contribution to journalArticlepeer-review


Measurements of the charged multiplicities for hadron production in e+e annihilation in the center of mass energy range 9–32 GeV have been made. The average charged multiplicity has an energy dependence much stronger than ln s and similar to that reported for pp collisions. Quantitative differences are observed in the magnitude of both the average multiplicity 〈nch〉 and the dispersion Dch for e+e and pp interactions at the same center of mass energy. 〈nch〉 and the ratio 〈nch/Dch in e+e annihilations are significantly larger than in pp collisions and are found to be in overall agreement with QCD predictions. KNO scaling is seen to be satisfied.

Original languageEnglish
Pages (from-to)313-317
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number2
StatePublished - 1980
Externally publishedYes


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