Multiplicity and asymmetric fireballs from π+p, K+p, γp, e-p, and μ-p reactions

Negative-pion multiplicities produced by asymmetric fireballs are investigated in terms of the fireball mass M*, related to the Feynman-Yang scaling. Assuming approx. M* and making use of results of the previous analysis on pp and p-barp data, it is found that only one parameter is needed for both π+p and K+p reactions and another one for γp, e-p, and μ-p reactions. An attempt is made to analyze π production by e+e- in analogy with the analysis of p-barp annihilation in a previous work