### Thermal imaginary part of a real-time static potential from classical lattice gauge theory simulations

Laine M, Philipsen O, Tassler M (2007)
JOURNAL OF HIGH ENERGY PHYSICS 2007(09): 066.

Zeitschriftenaufsatz | Veröffentlicht | Englisch

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Autor*in
Laine, MikkoUniBi ; Philipsen, Owe; Tassler, Marcus
Abstract / Bemerkung
Recently, a finite-temperature real-time static potential has been introduced via a Schrodinger-type equation satisfied by a certain heavy quarkonium Green's function. Furthermore, it has been pointed out that it possesses an imaginary part, which induces a finite width for the tip of the quarkonium peak in the thermal dilepton production rate. The imaginary part originates from Landau-damping of low-frequency gauge fields, which are essentially classical due to their high occupation number. Here we show how the imaginary part can be measured with classical lattice gauge theory simulations, accounting non-perturbatively for the infrared sector of finite-temperature field theory. We demons trate that a non-vanishing imaginary part indeed exists non-perturbatively; and that its value agrees semi-quantitatively with that predicted by Hard Loop resummed perturbation theory.
Stichworte
heavy quark physics; lattice gauge field theories; thermal field theory
Erscheinungsjahr
2007
Zeitschriftentitel
JOURNAL OF HIGH ENERGY PHYSICS
Band
2007
Ausgabe
09
Art.-Nr.
066
ISSN
1126-6708
eISSN
1029-8479
Page URI
https://pub.uni-bielefeld.de/record/1631848

### Zitieren

Laine M, Philipsen O, Tassler M. Thermal imaginary part of a real-time static potential from classical lattice gauge theory simulations. JOURNAL OF HIGH ENERGY PHYSICS. 2007;2007(09): 066.
Laine, M., Philipsen, O., & Tassler, M. (2007). Thermal imaginary part of a real-time static potential from classical lattice gauge theory simulations. JOURNAL OF HIGH ENERGY PHYSICS, 2007(09), 066. https://doi.org/10.1088/1126-6708/2007/09/066
Laine, M., Philipsen, O., and Tassler, M. (2007). Thermal imaginary part of a real-time static potential from classical lattice gauge theory simulations. JOURNAL OF HIGH ENERGY PHYSICS 2007:066.
Laine, M., Philipsen, O., & Tassler, M., 2007. Thermal imaginary part of a real-time static potential from classical lattice gauge theory simulations. JOURNAL OF HIGH ENERGY PHYSICS, 2007(09): 066.
M. Laine, O. Philipsen, and M. Tassler, “Thermal imaginary part of a real-time static potential from classical lattice gauge theory simulations”, JOURNAL OF HIGH ENERGY PHYSICS, vol. 2007, 2007, : 066.
Laine, M., Philipsen, O., Tassler, M.: Thermal imaginary part of a real-time static potential from classical lattice gauge theory simulations. JOURNAL OF HIGH ENERGY PHYSICS. 2007, : 066 (2007).
Laine, Mikko, Philipsen, Owe, and Tassler, Marcus. “Thermal imaginary part of a real-time static potential from classical lattice gauge theory simulations”. JOURNAL OF HIGH ENERGY PHYSICS 2007.09 (2007): 066.

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arXiv: 0707.2458

Inspire: 755977