Suppression of Dilepton Production in Expanding Hot Baryon-Rich Quark-Gluon Matter

He Zejun; Zhang Jiaju; Qiu Xijun

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1995, Vol. 19> Issue(S2) : 183-189

Suppression of Dilepton Production in Expanding Hot Baryon-Rich Quark-Gluon Matter

Institute of Nuclear Research, the Chinese Academy of Sciences, Shanghai, China

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Abstract：
From the full stopping scenario, we have studied the dilepton spectrum on the basis of the (3+1) dimensional RHE, and come to the conclusion that with increasing initial baryon density the dilepton production in invariant masses between 2 m_x to 1 GeV is shown to be suppressed, and an abnormal peak of the dilepton spectrum appears near the invariant mass 0.75 GeV if the baryon-rich quark-gluon matter is indeed created in ultrarelativistic nuclear collisions. These predictions will be tested in future experiments at CERN and Brookhaven.
- baryon-rich quark matter ,
- dilepton spectrum ,
- gluon matter

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[12]	He Zejun , Zhang Jiaju , Wang Zixing , Qiu Xijun . Dilepton Production in Expanding Hot Baryon-Rich Quark-Gluon Matter. Chinese Physics C, 1998, 22(7): 626-630.
[13]	He Zejun . Characteristic Dilepton Distribution for Quark-Gluon Matter. Chinese Physics C, 1997, 21(3): 269-274.
[14]	Chen Hong , Zhang Zongye . Nonperturbative Effect of Nonstrange Baryon Spectrum. Chinese Physics C, 1996, 20(S4): 379-386.
[15]	He Zejun , Zhang Jiaju , Qiu Xijun . Suppression of Dilepton Production in Expanding Hot Baryon-Rich Quark-Gloun Matter. Chinese Physics C, 1995, 19(2): 165-171.
[16]	He Zejun , Zhang Jiaju . Dilepton Invariant Mass Distribution in Central Rapidity Region. Chinese Physics C, 1995, 19(S4): 421-425.
[17]	HE Ze-Jun , ZHANG Jia-Ju , QIU Xi-Jun . Dilepton Spectrum from An Expanding Hot Nuclear Matter. Chinese Physics C, 1993, 17(8): 731-733.
[18]	Zhuang Pengfei , Liu Lianshou . Estimation of the Maximum Energy Density in High Energy Heavy Ion Collisions and the Space-time Region for the Formation of Quark Matter. Chinese Physics C, 1991, 15(S3): 297-305.
[19]	HE Ze-Jun , LI Pan-Lin , ZHANG Jia-Ju , QIU Xi-Jun . A Studying for the Dilepton Mass Spectrum from an Expanding Hot Quark Matter. Chinese Physics C, 1991, 15(6): 562-568.
[20]	He Zejun , Zhang Jiaju , Li Panlin , Qiu Xijun . A Study of the Dilepton Mass Spectrum of an Expanding Hot Quark Matter. Chinese Physics C, 1991, 15(S3): 307-315.

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He Zejun, Zhang Jiaju and Qiu Xijun. Suppression of Dilepton Production in Expanding Hot Baryon-Rich Quark-Gluon Matter[J]. Chinese Physics C, 1995, 19(S2): 183-189.

He Zejun, Zhang Jiaju and Qiu Xijun. Suppression of Dilepton Production in Expanding Hot Baryon-Rich Quark-Gluon Matter[J]. Chinese Physics C, 1995, 19(S2): 183-189. shu

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Received: 1993-11-08

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沈阳化工大学材料科学与工程学院沈阳 110142

Suppression of Dilepton Production in Expanding Hot Baryon-Rich Quark-Gluon Matter

Institute of Nuclear Research, the Chinese Academy of Sciences, Shanghai, China

Received Date: 1993-11-08

Abstract: From the full stopping scenario, we have studied the dilepton spectrum on the basis of the (3+1) dimensional RHE, and come to the conclusion that with increasing initial baryon density the dilepton production in invariant masses between 2 m_x to 1 GeV is shown to be suppressed, and an abnormal peak of the dilepton spectrum appears near the invariant mass 0.75 GeV if the baryon-rich quark-gluon matter is indeed created in ultrarelativistic nuclear collisions. These predictions will be tested in future experiments at CERN and Brookhaven.