Charmonium correlators and spectral functions at finite temperature

Ding H, Kaczmarek O, Karsch F, Satz H, Söldner W (2009)
In: Proceedings, 27th International Symposium on Lattice field theory (Lattice 2009) : Beijing, P.R. China, July 26-31, 2009. Liu C (Ed); PoS.

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Liu, Chuan
Abstract
We study charmonium correlators and spectral functions in quenched QCD, using Clover improved Wilson fermions on very fine (0.015 fm) isotropic lattices at 0.75 Tc and 1.5 Tc. We use a new approach to distinguish the zero mode contribution from the other contributions. Once this is removed, we find that the ratios of correlators to reconstructed correlators remain almost unity at all distances. The ground state peaks of spectral functions obtained at 0.75 Tc are reliable and robust. The present accuracy and limited number of points in the temporal direction at 1.5 Tc do not allow for a reliable conclusion about a possible melting of charmonium states in the QGP.
Publishing Year
Conference
27th International Symposium on Lattice field theory (Lattice 2009)
Location
Beijing, P.R. China
Conference Date
2009-07-26 – 2009-07-31
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Ding H, Kaczmarek O, Karsch F, Satz H, Söldner W. Charmonium correlators and spectral functions at finite temperature. In: Liu C, ed. Proceedings, 27th International Symposium on Lattice field theory (Lattice 2009) : Beijing, P.R. China, July 26-31, 2009. PoS; 2009.
Ding, H., Kaczmarek, O., Karsch, F., Satz, H., & Söldner, W. (2009). Charmonium correlators and spectral functions at finite temperature. In C. Liu (Ed.), Proceedings, 27th International Symposium on Lattice field theory (Lattice 2009) : Beijing, P.R. China, July 26-31, 2009 PoS.
Ding, H., Kaczmarek, O., Karsch, F., Satz, H., and Söldner, W. (2009). “Charmonium correlators and spectral functions at finite temperature” in Proceedings, 27th International Symposium on Lattice field theory (Lattice 2009) : Beijing, P.R. China, July 26-31, 2009, Liu, C. ed. (PoS).
Ding, H., et al., 2009. Charmonium correlators and spectral functions at finite temperature. In C. Liu, ed. Proceedings, 27th International Symposium on Lattice field theory (Lattice 2009) : Beijing, P.R. China, July 26-31, 2009. PoS.
H. Ding, et al., “Charmonium correlators and spectral functions at finite temperature”, Proceedings, 27th International Symposium on Lattice field theory (Lattice 2009) : Beijing, P.R. China, July 26-31, 2009, C. Liu, ed., PoS, 2009.
Ding, H., Kaczmarek, O., Karsch, F., Satz, H., Söldner, W.: Charmonium correlators and spectral functions at finite temperature. In: Liu, C. (ed.) Proceedings, 27th International Symposium on Lattice field theory (Lattice 2009) : Beijing, P.R. China, July 26-31, 2009. PoS (2009).
Ding, Hengtong, Kaczmarek, Olaf, Karsch, Frithjof, Satz, Helmut, and Söldner, Wolfgang. “Charmonium correlators and spectral functions at finite temperature”. Proceedings, 27th International Symposium on Lattice field theory (Lattice 2009) : Beijing, P.R. China, July 26-31, 2009. Ed. Chuan Liu. PoS, 2009.
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