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

He Zejun; Zhang Jiaju; Qiu Xijun

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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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.