Properties of Quarkonia at T_c
| dc.creator | Lee, Su Houng | |
| dc.creator | Morita, Kenji | |
| dc.date | 2008-05-05 | |
| dc.date.accessioned | 2026-07-07T11:50:33Z | |
| dc.date.available | 2026-07-07T11:50:33Z | |
| dc.description | 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. | |
| dc.description | 8 pages, Plenary talk given at Quark Matter 2008, Jaipur India | |
| dc.identifier | https://arxiv.org/abs/0805.0471 | |
| dc.identifier | http://arxiv.org/abs/0805.0471 | |
| dc.identifier | J.Phys.G35:104024,2008 | |
| dc.identifier | doi:10.1088/0954-3899/35/10/104024 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/203594 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Properties of Quarkonia at T_c | |
| dc.type | text |