Journal
PHYSICAL REVIEW LETTERS
Volume 107, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.092003
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Funding
- KAKENHI [22105503, 19540275]
- YIPQS at the Yukawa Institute for Theoretical Physics
- Japan Society for the Promotion of Science for Young Scientists [21.8079]
- FIAS
- Grants-in-Aid for Scientific Research [09J08079, 22105503] Funding Source: KAKEN
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Charmonia spectral functions at finite temperature are studied using QCD sum rules in combination with the maximum entropy method. This approach enables us to directly obtain the spectral function from the sum rules, without having to introduce any specific assumption about its functional form. As a result, it is found that while J=psi and eta(c) manifest themselves as significant peaks in the spectral function below the deconfinement temperature T-c, they quickly dissolve into the continuum and almost completely disappear at temperatures between 1.0T(c) and 1.1T(c).
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