Temperature and supersymmetry |
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| Authors: | L Girardello MT Grisaru P Salomonson |
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| Institution: | Gordon McKay Laboratory, Harvard University, Cambridge, MA 02138, USA;Department of Physics, Brandeis University, Waltham, MA 02254, USA;Lyman Laboratory of Physics, Harvard University, Cambridge, MA 02138, USA |
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| Abstract: | We study equal-time correlation functions at finite temperature in field theories with global supersymmetry. Global supersymmetry is found to be broken at finite temperature; the ground state is not supersymmetric but no Goldstone fermion appears. The temperature dependence of the mass spectrum in the one-loop approximation and leading order in temperature is investigated in several models. In the models that we consider with spontaneous supersymmetry breaking we find that the Goldstone fermion remains massless at the one-loop level. Ward identities describing the supersymmetry of the underlying theory are checked at the one-loop level. We also discuss the situation in supergravity. |
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