Charmonium at finite temperature

✍ Scribed by P. Petreczky; S. Datta; F. Karsch; I. Wetzorke

• Book ID: 104354746
• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 270 KB
• Volume: 129-130
• Category: Article
• ISSN: 0920-5632
• DOI: 10.1016/s0920-5632(03)02653-7

✦ Synopsis

We study charmoinum correlators and spectral functions at finite temperature within the quenched approximation using isotropic lattices with lattice spacing u-l = 4.86 GeV and 9.72 GeV. Although we observe some medium modifications of the ground state charmonium spectral function above deconfinement, we find that ground state charmonia (J/T) and Q) exist in the deconfined phase at least up to temperatures as high as 1.5T,. P-wave charmonia (xc) on the other hand are dissociated already at l.l2T,.