Chinese Physics C > 1998, Vol. 22 > Issue(5): 434-439

Reduction of Strange Quark Suppression in Relativistic Nucleus-Nucleus Collisions

Tai An^,,
Sa Benhao

Institute of High Energy Physics, CAS Beijing 1000392 China Institute of Atomic Energy., Beijing 102413

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Abstract：
We use the event generator LUCIAE with the mechanism of reduction of strange quark suppression to investigate the strangeness enhancement in relativistic nucleusnucleus collisions. The results of LUCIAE reproduce the corresponding NA35 data quite well and explain very well that the reduction of strange quark suppression plays more important role than the rescattering of final state hadrons in the production of strange particles.

References

[1]

Abatzis S et al. WA85 Colla Phys. Lett., 1990, B244: 127 [2] Bartke J et al. NA35 Colla. Z. Phys., 1990, C48: 191; Alber T et al. NA35 Colla.. Z. Phys., 1994, C64:195; Phys. Lett., 1996, B366:56 [3] Andenen E et al., NA36 Colla. Nucl. Phys., 1995, A590: 291c; Phys. Lett., 1993, B316:603 [4] Nagamiya S. Nucl. Phys., 1992, A544:5c [5] Rafelski J, Hagedom R Statistical Mechanics of Quarks and Hadrons. North Holland, Amsterdam; Ed. H.Satz, 1981 [6] Sa Benhao, Wang Zhongqi, Zhang Xiaoze et al. Phys. Rev., 1993, C48:2995; Sa Benhao, Tai An, Lu Zhongdao. Phys. Rev., 1995, C52:2069; Andersson B, Tai An, Sa Benhao. Z. Phys., 1996, C70:499 [7] Wemer K Phys. Rep., 1993, 232:87 [8] Sorge H Phys. Rev., 1995, C52: 3291; Z. Phys., 1995, C67:479 [9] Sa Benhao, Tai An. Phys. Rev., 1997, C55:2010 [10] Sa Benhao, Tai An. Phys. Lett., 1997, B399:29 [11] Tai An, Sa Benhao. Phys. Lett., 1997, B409: 393 [12] Sa Benhao, Tai An. Comp. Phys. Commu., 1995, 90: 121 [13] Andersson B, Gustafson G, Ingelman G et al. Phys. Rep., 1983, 97:31 [14] Andersson B, Gustafson G, Nilsson-Almqvist B. Nucl. Phys., 1987, B281:289 [15] Bachler J et al.. NA35 Colla. Phys. Rev. Lett., 1994,72:1419

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Tai An and Sa Benhao. Reduction of Strange Quark Suppression in Relativistic Nucleus-Nucleus Collisions[J]. Chinese Physics C, 1998, 22(5): 434-439.

Tai An and Sa Benhao. Reduction of Strange Quark Suppression in Relativistic Nucleus-Nucleus Collisions[J]. Chinese Physics C, 1998, 22(5): 434-439. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Reduction of Strange Quark Suppression in Relativistic Nucleus-Nucleus Collisions

Tai An^,
Sa Benhao

Corresponding author:Tai An,

Institute of High Energy Physics, CAS Beijing 1000392 China Institute of Atomic Energy., Beijing 102413

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1998-05-05

Abstract:We use the event generator LUCIAE with the mechanism of reduction of strange quark suppression to investigate the strangeness enhancement in relativistic nucleusnucleus collisions. The results of LUCIAE reproduce the corresponding NA35 data quite well and explain very well that the reduction of strange quark suppression plays more important role than the rescattering of final state hadrons in the production of strange particles.