Hard Thermal Loops and Chiral Lagrangians
نویسنده
چکیده
Chiral symmetry is used as the guiding principle to derive hard thermal loop effects in chiral perturbation theory. This is done by using a chiral invariant background field method for the non-linear sigma model and the WessZumino-Witten lagrangian, with and without external vector and axial vector sources. It is then shown that the n-point hard thermal loop is the leading thermal correction for the Green function of n point vector soft quark currents. PACS No: 12.39.Fe, 11.10.Wx, 11.30.Rd , 12.38.Bx. ECM-UB-PF-97/27 October/1997
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تاریخ انتشار 1997