Reduction of Strangeness Suppression and Strange Antibaryon Production in Sulphur-Nucleus Collisions at 200A GeV

Sa Benhao; Tai An

Chinese Physics C> 1998, Vol. 22> Issue(1) : 41-47

Reduction of Strangeness Suppression and Strange Antibaryon Production in Sulphur-Nucleus Collisions at 200A GeV

Sa Benhao ^, ,
Tai An

China Institute of Atomic Energy, Beijing 1024132 Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing, 100039

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We use the event generator LUCIAE to analyse NA35 data of the p and Λ yields, the transverse mass distributions and the ratio Λ/p in pp and central sulphur-nucleus collisions at 200A GeV. The results seem to indicate that NA35 data might imply the reduction of strangeness suppression in ultrarelativistic nucleus-nucleus collisions comparing to the nucleon-nucleon collision at the same energy. However, the ratio Λ/p approaching to unity in AA collisions comparing to pp collision does not necessarily mean quark flavor symmetry.

References

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Sa Benhao and Tai An. Reduction of Strangeness Suppression and Strange Antibaryon Production in Sulphur-Nucleus Collisions at 200A GeV[J]. Chinese Physics C, 1998, 22(1): 41-47.

Sa Benhao and Tai An. Reduction of Strangeness Suppression and Strange Antibaryon Production in Sulphur-Nucleus Collisions at 200A GeV[J]. Chinese Physics C, 1998, 22(1): 41-47. shu

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Received: 1900-01-01
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Reduction of Strangeness Suppression and Strange Antibaryon Production in Sulphur-Nucleus Collisions at 200A GeV

Corresponding author: Sa Benhao,

China Institute of Atomic Energy, Beijing 1024132 Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing, 100039

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1998-01-05

Abstract: We use the event generator LUCIAE to analyse NA35 data of the p and Λ yields, the transverse mass distributions and the ratio Λ/p in pp and central sulphur-nucleus collisions at 200A GeV. The results seem to indicate that NA35 data might imply the reduction of strangeness suppression in ultrarelativistic nucleus-nucleus collisions comparing to the nucleon-nucleon collision at the same energy. However, the ratio Λ/p approaching to unity in AA collisions comparing to pp collision does not necessarily mean quark flavor symmetry.

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Reduction of Strangeness Suppression and Strange Antibaryon Production in Sulphur-Nucleus Collisions at 200A GeV

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