Λc Enhancement from strongly coupled quark-gluon plasma

Su Houng Lee, Kazuaki Ohnishi, Shigehiro Yasui, In Kwon Yoo, Che Ming Ko

Research output: Contribution to journalArticle

43 Citations (Scopus)

Abstract

We propose the enhancement of Λc 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 Λc production in comparison with the normal three-body collision among independent c, u, and d quarks. In the coalescence model, we find that the Λc/D yield ratio is enhanced substantially due to the diquark correlation.

Original languageEnglish
Article number222301
JournalPhysical review letters
Volume100
Issue number22
DOIs
Publication statusPublished - 2008 Jun 6

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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