期刊
PHYSICAL REVIEW LETTERS
卷 100, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.100.222301
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资金
- National Research Foundation of Korea [2006-341-C00011] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We propose the enhancement of Lambda(c) as a novel quark-gluon plasma signal in heavy ion collisions at the BNL Relativistic Heavy Ion Collider and the CERN Large Hadron Collider. Assuming a stable bound diquark state in the strongly coupled quark-gluon plasma near the critical temperature, we argue that the direct two-body collision between a c quark and a [ud] diquark would lead to an enhanced Lambda(c) production in comparison with the normal three-body collision among independent c, u, and d quarks. In the coalescence model, we find that the Lambda(c)/D yield ratio is enhanced substantially due to the diquark correlation.
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