# Heavy quark diffusion from lattice QCD spectral functions

Ding H, Francis A, Kaczmarek O, Karsch F, Satz H, Söldner W (2011)
Journal of Physics G: Nuclear and Particle Physics 38(12): 124070.

Journal Article | Original Article | Published | English
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We analyze the low frequency part of charmonium spectral functions on large lattices close to the continuum limit in the temperature region $1.5\lesssim T/T_c\lesssim 3$ as well as for $T \simeq 0.75T_c$. We present evidence for the existence of a transport peak above $T_c$ and its absence below $T_c$. The heavy quark diffusion constant is then estimated using the Kubo formula. As part of the calculation we also determine the temperature dependence of the signature for the charmonium bound state in the spectral function and discuss the fate of charmonium states in the hot medium.
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Ding H, Francis A, Kaczmarek O, Karsch F, Satz H, Söldner W. Heavy quark diffusion from lattice QCD spectral functions. Journal of Physics G: Nuclear and Particle Physics. 2011;38(12):124070.
Ding, H., Francis, A., Kaczmarek, O., Karsch, F., Satz, H., & Söldner, W. (2011). Heavy quark diffusion from lattice QCD spectral functions. Journal of Physics G: Nuclear and Particle Physics, 38(12), 124070. doi:10.1088/0954-3899/38/12/124070
Ding, H., Francis, A., Kaczmarek, O., Karsch, F., Satz, H., and Söldner, W. (2011). Heavy quark diffusion from lattice QCD spectral functions. Journal of Physics G: Nuclear and Particle Physics 38, 124070.
Ding, H., et al., 2011. Heavy quark diffusion from lattice QCD spectral functions. Journal of Physics G: Nuclear and Particle Physics, 38(12), p 124070.
H. Ding, et al., “Heavy quark diffusion from lattice QCD spectral functions”, Journal of Physics G: Nuclear and Particle Physics, vol. 38, 2011, pp. 124070.
Ding, H., Francis, A., Kaczmarek, O., Karsch, F., Satz, H., Söldner, W.: Heavy quark diffusion from lattice QCD spectral functions. Journal of Physics G: Nuclear and Particle Physics. 38, 124070 (2011).
Ding, Hengtong, Francis, Anthony, Kaczmarek, Olaf, Karsch, Frithjof, Satz, Helmut, and Söldner, Wolfgang. “Heavy quark diffusion from lattice QCD spectral functions”. Journal of Physics G: Nuclear and Particle Physics 38.12 (2011): 124070.
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arXiv 1107.0311

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