ar X iv : h ep - p h / 02 01 03 4 v 1 7 J an 2 00 2 Spontaneous symmetry breaking and the p → 0 limit
نویسنده
چکیده
Due to a basic ambiguity in the p → 0 limit of the connected propagator, the conventional singlet Higgs boson of spontaneously broken theories is not a purely massive field but has a gap-less branch. This dominates the energy spectrum for p → 0 and gives rise to a long-range force. Its natural interpretation is in terms of density fluctuations of the ‘Higgs condensate’ that cannot be treated as a purely classical c-number field.
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