Quark-matter diagnostics
Quark-matter diagnostics
复制标题
夸克物质诊断
DOI：
10.1103/physrevd.23.203
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发表时间：
1981
期刊：
影响因子：
--
通讯作者：
Joseph I. Goldman
中科院分区：
文献类型：
--
作者：
G. Domokos;Joseph I. Goldman
我们认为，在重离子碰撞中，通过观察轻子对产生谱，可以探测到普通强子物质和夸克物质之间的相变。对产生率是根据核碰撞的“火球模型”估计的。夸克物质在初始火球中的存在应该通过在200和600 MeV之间的不变质量下增强轻子对产生率来揭示。在这个质量区间内对轻子对的观测有望成为探测高温高压下大块强子物质性质的灵敏诊断工具。
We suggest that a phase transition between ordinary hadronic matter and quark matter is detectable in heavy-ion collisions by observing lepton-pair production spectra. Pair production rates are estimated on the basis of a ''fireball model'' of nuclear collisions. The presence of quark matter in the initial fireball should be revealed by an enhancement of the lepton-pair production rate at invariant masses between 200 and 600 MeV. Observation of lepton pairs within this mass interval is expected to serve as a sensitive diagnostic tool for probing the properties of bulk hadronic matter at high temperatures and compressions.