Lambda_{c} enhancement from strongly coupled quark-gluon plasma

We propose the enhancement of \(\Lambda_{c}\) as a novel QGP signal in heavy ion collisions at RHIC and LHC. Assuming a stable bound diquark state in the strongly coupled QGP near the critical temperature, we argue that the direct two-body collision between a \(c\) quark and a \([ud]\) diquark would...

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Bibliographic Details
Published inarXiv.org
Main Authors Lee, Su Houng, Ohnishi, Kazuaki, Yasui, Shigehiro, Yoo, In-Kwon, Ko, Che Ming
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 10.06.2008
Subjects
Coalescing
Critical temperature
Gluons
Heavy ions
Ionic collisions
Physics - Nuclear Theory
Quark-gluon plasma
Quarks
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Summary:We propose the enhancement of \(\Lambda_{c}\) as a novel QGP signal in heavy ion collisions at RHIC and LHC. Assuming a stable bound diquark state in the strongly coupled QGP 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.
ISSN:2331-8422
DOI:10.48550/arxiv.0709.3637