Charged-particle multiplicity distribution from 200-GeV pp interactions

G. Charlton, Y. Cho, M. Derrick, R. Engelmann, T. Fields, L. Hyman, K. Jaeger, U. Mehtani, B. Musgrave, Y. Oren, D. Rhines, P. Schreiner, H. Yuta, L. Voyvodic, R. Walker, J. Whitmore, H. B. Crawley, Z. Ming Ma, R. G. Glasser

Research output: Contribution to journalArticlepeer-review


From 2728 events of 205-GeV pp interactions found in 15 000 pictures taken with the 30-in. hydrogen bubble chamber at the National Accelerator Laboratory, a total cross section of 39.5±1.1 mb was measured. The mean charged-particle multiplicity for inelastic pp collisions was measured to be 7.65±0.17. The prong distribution from 2 to 22 prongs is broader than a Poisson distribution and has a width parameter f2-=ã€̂n-(n - 1)〉-ã€̂n-〉2=0. 95±0.21.

Original languageEnglish
Pages (from-to)515-518
Number of pages4
JournalPhysical Review Letters
Issue number8
StatePublished - 1972


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