Damping of plasma oscillations in hot gluon matter |
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| Institution: | 1. Physics Department, Brookhaven National Laboratory, Upton, NY 11973, USA;2. Department of Theoretical Physics and Academy of Finland, Siltavuorenpenger 20 C, SF-00170 Helsinki, Finland;3. Research Institute for Theoretical Physics, University of Helsinki, Siltavuorenpenger 20 C, SF-00170 Helsinki, Finland;1. Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;2. School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China;3. Department of Physics, Boston College, Chestnut Hill, MA 02467, USA;4. Kavli Institute of Theoretical Sciences, University of Chinese Academy of Sciences, Beijing 100190, China;1. Institute of Physics and University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100190, China;2. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China;3. CAS Center for Excellence in Topological Quantum Computation, Beijing 100049, China |
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| Abstract: | The computation of the damping constant of QCD plasma oscillations is discussed in the physical Coulomb and temporal axial gauges in the framework of a consistent linear response analysis. To bare one-loop order the waves damp by decaying into two massless gluons, and the two gauges give the same result for the damping constant. It is pointed out that, due to the infrared behaviour of the theory, higher-order corrections will modify the result and an example showing how they may do this by turning the gluons effectively massive is given. |
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