Borsanyi, Szabolcs and Duerr, Stephan and Fodor, Zoltan and Hoelbling, Christian and Katz, Sandor D. and Krieg, Stefan and Mages, Simon and Nogradi, Daniel and Pasztor, Attila and Schaefer, Andreas and Szabo, Kalman K. and Toth, Balint C. and Trombitas, Norbert (2014) Charmonium spectral functions from 2+1 flavour lattice QCD. JOURNAL OF HIGH ENERGY PHYSICS (4): 132. ISSN 1029-8479,
Full text not available from this repository. (Request a copy)Abstract
Finite temperature charmonium spectral functions in the pseudoscalar and vector channels are studied in lattice QCD with 2+1 flavours of dynamical Wilson quarks, on fine isotropic lattices (with a lattice spacing of 0.057fm), with a non-physical pion mass of m(pi) approximate to 545 MeV. The highest temperature studied is approximately 1.4T(c). Up to this temperature no significant variation of the spectral function is seen in the pseudoscalar channel. The vector channel shows some temperature dependence, which seems to be consistent with a temperature dependent low frequency peak related to heavy quark transport, plus a temperature independent term at omega > 0. These results are in accord with previous calculations using the quenched approximation.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MAXIMUM-ENTROPY ANALYSIS; CONTINUUM-LIMIT; FREE-ENERGIES; Lattice QCD; Phase Diagram of QCD |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 13 Nov 2019 15:31 |
| Last Modified: | 13 Nov 2019 15:31 |
| URI: | https://pred.uni-regensburg.de/id/eprint/10300 |
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