The leading particle effect from light quark fragmentation in charm hadroproduction

Abstract

The asymmetry of $D^{-}$ and $D^{+}$ meson production in ${\pi }^{-}N$ scattering observed by the E791 experiment is a typical phenomenon known as the leading particle effect in charm hadroproducton. We show that the phenomenon can be explained by the effect of light quark fragmentation into charmed hadrons (LQF). Meanwhile, the size of the LQF effect is estimated from data of the E791 experiment. A comparison is made with the estimate of the LQF effect from prompt like-sign dimuon rate in neutrino experiments. The influence of the LQF effect on the measurement of nucleon strange distribution asymmetry from charged current charm production processes is briefly discussed.

6 latex pages, 1 figure, to appear in EPJC

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Cited by in corpus (6)

• Influence of Heavy Quark Recombination on the Nucleon Strangeness Asymmetry
• Nucleon strange $s\bar{s}$ asymmetry to the $\Lambda /\bar{\Lambda }$ fragmentation
• Nucleon strangeness polarization from $\Lambda /\bar{\Lambda }$ hyperon production in polarized proton-proton collision at RHIC
• On the impact of heavy meson production spectra on searches for heavy neutral leptons
• Quark-antiquark asymmetry of helicity distributions in the nucleon sea
• The influence of direct $D$-meson production to the determination on the nucleon strangeness asymmetry via dimuon events in neutrino experiments