Strange Baryon and the Signal of QGP Formation in Ultrarelativistic Nucleus-Nucleus Collisions

Sa Benhao; Tai An; Lu Zhongdao

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2024年10月30日

Chinese Physics C> 1995, Vol. 19> Issue(11) : 1019-1023

Strange Baryon and the Signal of QGP Formation in Ultrarelativistic Nucleus-Nucleus Collisions

China Institute of Atomic Energy,Beijing 1024132 Department of Theoretical Physics.University of Lund,Solvegatan 14A,S-223 62 Lund,Sweden

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Abstract：
The ratios of strange baryon to antibaryon produced in the reaction S+ Pb at 200 AGeV beam energy are computed using new version of Fritiof with collective string interaction and rescattering.Theoretical ratios of and are comparable with experimental data within the range of the deviation among the data of different collaborations.It seems to indicate that these data of the ratios of strange baryon to antibaryon might be explained in the hadronic scenario.

References

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M.Jacob,J.Tran Van.，Phys.Rep,88（1982）321;J.Rafelski Phys.Rep.,88（1982）331;P.Koch,J.Rafelski,Nucl.Phys,A444（1985）678;1.Eilis,U.Heinz,Phys.Lett,B233（1989）223.[2] E.Andersen,et al,Phys.Lett.,B327（1994）433.[3] T.Akesson et al,Nucl.Phys,B246（1984）1.[4] S.Abatais et al,Phys.Lett,B270（1991）123.[5] D.Evans et al.,Nucl.Phys,A566（1993）225c.[6] B.Andersson,G.Gustafson,Hong Pi,Z.Phys,C57（1993）485.[7] B.Andersson,Phys.Lett,B256（1991）337.[8] Tai An,privatecommunication.[9] Sa Ben-Hao,Wang Zhong-Qi,Zhang Xiao-Ze,Song Guang,Lu Zhong-Dao,Zheng Yu-Ming,Phys.Rev,C48（1993）2995.[10] R.Mattiello,H.Sorge,H.Stocker,W.Greiner,Phys.Rev.Lett,63（1989）1459.[11] P.Koch,B.Muller,j.Rafelski,Phys.Rep,142（1986）167.

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[4]	MA Wei-Xing , LIANG Wei-Hong . A Non-singularity form Factor of Baryon Vertex for Crossing Channel Study. Chinese Physics C, 2002, 26(S1): 88-92.
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[20]	CHEN Jun-Feng , HE Ze-Jun . THE CHARACTERISTIC DILEPTON MASS DISTRIBUTION FROM HOT QUARK MATTER IN ULTRARELATIVISTIC NUCLEUS-NUCLEUS COLLISIONS. Chinese Physics C, 1990, 14(4): 359-365.

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Sa Benhao, Tai An and Lu Zhongdao. Strange Baryon and the Signal of QGP Formation in Ultrarelativistic Nucleus-Nucleus Collisions[J]. Chinese Physics C, 1995, 19(11): 1019-1023.

Sa Benhao, Tai An and Lu Zhongdao. Strange Baryon and the Signal of QGP Formation in Ultrarelativistic Nucleus-Nucleus Collisions[J]. Chinese Physics C, 1995, 19(11): 1019-1023. shu

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

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Strange Baryon and the Signal of QGP Formation in Ultrarelativistic Nucleus-Nucleus Collisions

Corresponding author: Sa Benhao,

China Institute of Atomic Energy,Beijing 1024132 Department of Theoretical Physics.University of Lund,Solvegatan 14A,S-223 62 Lund,Sweden

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1995-11-15

Abstract: The ratios of strange baryon to antibaryon produced in the reaction S+ Pb at 200 AGeV beam energy are computed using new version of Fritiof with collective string interaction and rescattering.Theoretical ratios of and are comparable with experimental data within the range of the deviation among the data of different collaborations.It seems to indicate that these data of the ratios of strange baryon to antibaryon might be explained in the hadronic scenario.