Quark Matter pp 129-133 | Cite as

A study of π and K production in proton-uranium and oxygen-uranium interactions at 22 GeV/A using decay muons

  • P. Sonderegger
  • NA 38 Collaboration
Conference paper


The like-sign dimuons copiously recorded in the NA 38 experiment both in p − U and O−U reactions at 200 GeV/nucleon are interpreted as resulting from decays of π and K mesons in comparable proportions. The + +/− − ratio is large (≃1.7) and ascribed to the K + being more copiously produced than the K . Both the average transverse momentum and the + +/− − ratio are comparable for p−U and O−U reactions, and both increase only slightly with the transverse energy E T .


Eter Calorimeter U238 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • P. Sonderegger
    • 1
  • NA 38 Collaboration
  1. 1.CERNGenevaSwitzerland

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