DILEPTON AS A POSSIBLE SIGNATURE FOR THE BARYON-RICH QUARK-GLUON PLASMA

被引：15
作者：
XIA, LH
KO, CM
LI, CT
机构：
[1] TEXAS A&M UNIV SYST, INST CYCLOTRON, COLLEGE STN, TX 77843 USA
[2] TEXAS A&M UNIV SYST, CTR THEORET PHYS, COLLEGE STN, TX 77843 USA
来源：
PHYSICAL REVIEW C | 1990年 / 41卷 / 02期
关键词：
D O I：
10.1103/PhysRevC.41.572
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
In an expanding fireball model, we study dilepton production from high-energy heavy-ion collisions at the stopping regime. We find that the pion-pion annihilation gives the dominant contribution to the dilepton yield at invariant masses between 2m and 1 GeV. The total dilepton yield in this invariant mass region increases with the incident energy of the collision, but a saturation is seen once a baryon-rich quark-gluon plasma is formed in the initial stage. © 1990 The American Physical Society.
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页码：572 / 580
页数：9
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