Average charged-particle multiplicities ininclusive reactions at 147 GeV/c
- 1 February 1979
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 19 (3), 743-763
- https://doi.org/10.1103/physrevd.19.743
Abstract
The experimentally determined average charged-particle multiplicities, , of the systems, , produced in the following reactions for 147 GeV/c incident pion momentum are presented as functions of the square of the invariant mass of , , and of , , , , and . Details of the analysis are discussed. These data can be fit by the expression and the coefficients obtained for are equal within their uncertainties. is significantly different from zero only for . These results and data from other inclusive and total-inelastic-reaction studies are discussed in terms of a simple model which assumes contributions to from the target-fragmentation, the central, and the beam-fragmentation regions in the case of total-inelastic reactions. For inclusive reactions, either the beam or target fragmentation is replaced by an exchange-particle-fragmentation contribution. The , , and dependence of the parameters of the model are deduced from triple-Regge considerations. The data are found to be consistent with the model and values are presented for the parameters.
Keywords
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