Charged multiplicities of hadrons in hadronic and leptonic reactions

Mean charged multiplicities in charged-current neutrino scattering on hydrogen and deuterium

“…We note thereupon that the statement of Ref. [58] that, in accordance with the quark-model prediction (see, Sec. V A), the charged multiplicities in the nondiffractive π ± p reactions agree well with these in the outdated data and/or with the data obtained under strong cutoff conditions.…”

“…3 show the fit to the energy dependence of the average charged multiplicity for the nondiffractive component of the π + p reactions, n π + p ch ND = 1.98 + 0.31 ln s + 0.14 ln 2 s, obtained in Ref. [58] (the uncertainty of the fit is not provided by the authors). The similarity of n νp ch and n π + p ch ND is expected from a simple quark-model consideration that W + p and π + p collisions must generate the same quark-diquark string (u − uu) with charge 2.…”

“…4 show the fit to the energy dependence of the average charged multiplicity for the nondiffractive component of the π − p reactions, n π − p ch ND = 0.69 + 0.76 ln s + 0.10 ln 2 s, obtained in Ref. [58] (uncertainty of the fit is not provided by the authors). There is a sizable disagreement with respect to the best-fit curves for n νp ch , which increases with energy.…”

Leading particle effect, inelasticity, and the connection between average multiplicities ine+e−andppBatista1, Covolan2 1999Phys. Rev. D111100View full textAdd to dashboardCite

“…In ref. [2], for instance, two corrections are made to compare these quantities: the energy variable for n ch pp is corrected by removing the portion referring to the elasticity (the fraction of the energy taken by the leading particle) and then the average leading proton multiplicity is subtracted. A similar idea is followed in ref.…”

“…then in pp/pp collisons we have n ch pp = n 0 + N( k p √ s), (2) where N(W ) is an universal function of the energy available for multiparticle production, W , n 0 is the average leading particle multiplicity, and k p is the average inelasticity.…”