Equilibrium and non-equilibrium hard thermal loop resummation in the real time formalism
نویسندگان
چکیده
منابع مشابه
Hard thermal loops in the real-time formalism
We present a systematic discussion of Braaten and Pisarski’s hard thermal loop (HTL) effective theory within the framework of the real-time (Schwinger-Keldysh) formalism. As is well known, the standard imaginary-time HTL amplitudes for hot gauge theory express the polarization of a medium made out of nonabelian charged point-particles; we show that the complete real-time HTL theory includes, in...
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A partonic reball, possibly created in ultrarelativistic heavy ion collisions, will not be in equilibrium at least in its early stage. However, as indicated by transport models [1], thermalization might be achieved quickly. A complete chemical equilibration of the quarks and gluons, on the other hand, may never take place. The chemical evolution of the reball can be described by means of rate e...
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A new time contour is used to derive real-time thermal field theory. Unlike previous path integral approaches, no contributions to the generating functional are dropped. PACS number: 11.10-z In the path integral approach to equilibrium thermal field theories, one is calculating thermal expectation values, typically ΓC(τ1, τ2, ..., τN) = Tr{eΦ−βHTCφ1(τ1)φ2(τ2)...φN(τN )}/Tr{eΦ−βH}. (1) Here Tc i...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 1999
ISSN: 1434-6044
DOI: 10.1007/s100520050412