Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-05-05
J.Phys.G35:104024,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, Plenary talk given at Quark Matter 2008, Jaipur India
Scientific paper
10.1088/0954-3899/35/10/104024
We discuss how the spectral changes of quarkonia at T_c can reflect the ``critical'' behaviour of QCD phase transition. Starting from the temperature dependencies of the energy density and pressure from lattice QCD calculation, we extract the temperature dependencies of the scalar and spin 2 gluon condensates near T_c. We also parameterize these changes into the electric and magnetic condensate near T_c. While the magnetic condensate hardly changes across T_c, we find that the electric condensate increases abruptly above T_c. Similar abrupt change is also seen in the scalar condensate. Using the QCD second-order Stark effect and QCD sum rules, we show that these sudden changes induce equally abrupt changes in the mass and width of J/psi, both of which are larger than 100 MeV at slightly above T_c.
Lee Su Houng
Morita Kenji
No associations
LandOfFree
Properties of Quarkonia at T_c does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Properties of Quarkonia at T_c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Properties of Quarkonia at T_c will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-208559