The unmasking of thermal Goldstone bosons

Jacques Bros, Detlev Buchholz
August 21, 1996
The problem of extracting the modes of Goldstone bosons from a thermal background is reconsidered in the framework of relativistic quantum field theory. It is shown that in the case of spontaneous breakdown of an internal bosonic symmetry a recently established decomposition of thermal correlation functions contains certain specific contributions which can be attributed to a particle of zero mass. hep-th/9608139
open access link Phys.Rev. D58 (1998) 125012
@article{Bros:1996kd, author = "Bros, Jacques and Buchholz, Detlev", title = "{The Unmasking of thermal Goldstone bosons}", journal = "Phys. Rev.", volume = "D58", year = "1998", pages = "125012", doi = "10.1103/PhysRevD.58.125012", eprint = "hep-th/9608139", archivePrefix = "arXiv", primaryClass = "hep-th", reportNumber = "DESY-96-167", SLACcitation = "%%CITATION = HEP-TH/9608139;%%" }

Keywords: 
thermal quantum field theory, Goldstone boson