Kinetic equations for long-wavelength excitations of the quark-gluon plasma | Zendy

Jean-Paul Blaizot | Zendy; Edmond Iancu | Zendy

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Kinetic equations for long-wavelength excitations of the quark-gluon plasma

Author(s) -

Jean-Paul Blaizot,

Edmond Iancu

Publication year - 1993

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.70.3376

Subject(s) - physics , quark–gluon plasma , plasma , equations of motion , quantum electrodynamics , wavelength , kinetic energy , gluon , amplitude , action (physics) , particle physics , thermal , quark , classical mechanics , quantum mechanics , thermodynamics

We show that longwavelength excitations of the quark-gluon plasma aredescribed by simple kinetic equations which represent the exact equations ofmotion at leading order in $g$. Properties of the so-called ``hard thermalloops'', i.e. the dominant contributions to amplitudes with soft externallines, find in this approach a natural explanation. In particular, theirgenerating functional appears here as the effective action describing longwavelength excitations of the plasma.Comment: January 8, 1993; 8 pages; SPhT/93-

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