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The Quark Recombination Mechanism in Multi-Hadron Production

  • L. Van Hove
Conference paper
Part of the Acta Physica Austriaca book series (FEWBODY, volume 21/1979)

Abstract

The lectures discuss the role of quarks and gluons in high energy hadron collisions, in particular in the dominant class of such collisions which are those of non-diffractive low-pT type. The main progress made recently in this field concerns the secondaries produced in the fragmentation regions of the incident hadrons. The observed similarity in the x-distributions of incident valence quarks and secondary mesons at medium and large x is well accounted for by the quark recombination model. Studying the case of pp collisions, we explicitly exhibit how this similarity comes about and find on the basis of recent ISR data that, contrary to earlier claims, only a modest enhancement of the parton sea is needed to explain the absolute magnitude of the observed cross section. We also find that inclusive meson production at large x is best accounted for by additive contributions of recombination and triple-Regge mechanism. Starting from the meson production data, we then show that by using the hyperon production rate as additional input, one can estimate the probabilities for the various ways in which the three valence quarks of an incident proton recombine with each other and/or whith sea partons to produce secondaries in the fragmentation region.

Keywords

Valence Quark Fragmentation Region Incident Proton Recombination Model Diffraction Dissociation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1979

Authors and Affiliations

  • L. Van Hove
    • 1
  1. 1.CERNGenève 23Switzerland

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