Quarkonium at T>0

Abstract

We report recent progress on theoretical investigations of quarkonia at finite temperature. We discuss medium modification of charmonia and bottomonia from a viewpoint of local operators and point out that while charmonia are sensitive to the deconfinement transition bottomonia will be modified at much higher temperatures.

Comments: Talk given at XLI International Symposium of Multiparticle Dynamics (ISMD 2011), 26-30, September 2011, Miyajima-Island, Hiroshima, Japan. 6 pages, 4 figures. To be published in Prog. Theor. Phys. Suppl