Production of Helium Projectile Fragments in 16O-Emulsion Collisions at 60 A GeV

  • Production of helium projectile fragments in 16O-emulsion interactions at 60 A GeV is investigated. The total charge changing and partial production cross-sections are measured experimentally on the basis of helium multiplicity. The multiplicity distribution of helium projectile fragments obeys a KNO scaling. In the peripheral collision of 16O at 60 A GeV in nuclear emulsion, the production of target fragments depends on the multiplicity of helium projectile fragments linearly. The averge multiplicity of target fragments decreases with the increasing of the number of helium projectile fragments which can be well expliained by the model of participant-spectator (the nuclear geometric model) of nucleus-nucleus interactions.
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ZHANG Dong-Hai. Production of Helium Projectile Fragments in 16O-Emulsion Collisions at 60 A GeV[J]. Chinese Physics C, 2002, 26(1): 40-45.
ZHANG Dong-Hai. Production of Helium Projectile Fragments in 16O-Emulsion Collisions at 60 A GeV[J]. Chinese Physics C, 2002, 26(1): 40-45. shu
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Received: 2001-02-15
Revised: 1900-01-01
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Production of Helium Projectile Fragments in 16O-Emulsion Collisions at 60 A GeV

    Corresponding author: ZHANG Dong-Hai,
  • Department of Physics, Shanxi Normal University, Linfen 041004, China

Abstract: Production of helium projectile fragments in 16O-emulsion interactions at 60 A GeV is investigated. The total charge changing and partial production cross-sections are measured experimentally on the basis of helium multiplicity. The multiplicity distribution of helium projectile fragments obeys a KNO scaling. In the peripheral collision of 16O at 60 A GeV in nuclear emulsion, the production of target fragments depends on the multiplicity of helium projectile fragments linearly. The averge multiplicity of target fragments decreases with the increasing of the number of helium projectile fragments which can be well expliained by the model of participant-spectator (the nuclear geometric model) of nucleus-nucleus interactions.

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