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

[1]

M. Jacob, J. Tran Van., Phys. Rep., 1982, 88: 321;J. Rafelski, Phys. Rep., 1982, 88:331;P. Koch, J. Rafelski, Nucl. Phys., 1985, A444:678;J. Ellis, U. Heinz, Phys. Lett., 1989, B233:223[2] J. Bartke et al. NA35 Colla.. 2. Phys., 1990, C48: 191[3] E. Andersen et al. NA36 Colla.. Phys. Lett, 1993, B316:603[4] S. Abatzis et al. WA85 Colla., Phys. Lett., 1990, B244: 127[5] T. Alber et al. NA35 Colla.. Z. Phys., 1994, C64:195[6] E Andersen et al. NA36 Colla.. Nucl. Phys., 1995, A590:291c[7] T. Alber et al. NA35 Colla.. Phys. Lett., 1996, B366:56[8]E. V. Shulyak. Phys. Rep., 1980 61:71; 1984, 115:151[9] P. Koch, B. Miiller, J. Rafelslu. Phys. Rep., 1986, 142:167[10] H. Sorge. Phys. Rev., 1995, C52:3291[11] Sa Ben-Hao, Tai An. Phys. Rev., 1997, C55:2010[12] A. K Wldblewski. Acta Phys. Pol., 1985, B16:379[13] H. Bialkowska et al. Z. Phys., 1992, C55:491[14] M. Gaidzicki, U. Heinz. Phys. Rev., 1996, C54: 1496[15] Sa Ben-Hao, Tai An. Comp. Phys. Commu., 1995, 90: 121[16] B. Andersson, G. Gustafson, Hong Pi. 2. Phys., 1993, C57:485[17] B. Andersson. Phys. Lett., 1991, B256:337[18] B. Andersson, Tai An. Z. Phys., 1996, C71: 155[19] Sa Ben-Hao et al., Phys. Rev., 1993, C48:2995;Sa Ben-Hao, Tai An, Lu Zhong-Dao. Phys. Rev., 1995, C52:2069;B. Andersson, Tai An, Sa Ben-Hao. Z. Phys., 1996, C70:499[20] G. Bertsch, S. Das Gupta. Phys. Rep., 1988, 160:189[21] A. K Wldblewski. Proceedings of the 25th International Conference on HEP, p. 125, Singapore, 1990[22] ZEUS Colla Z. Phys., 1995, C68:29;Fermilab E665 Colla. 2. Phys., 1994, C61:539[23] H. Sorge. Z. Phys., 1995, C67:479

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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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