Does nature like Nambu-Goldstone bosons?

G. B. Gelmini*, S. Nussinov, T. Yanagida

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

155 Scopus citations

Abstract

We argue here that many (up to around 30 species) so far undetected Goldstone bosons could exist in nature, for example, associated with the spontaneous breaking of a horizontal global symmetry, provided the breaking scale is V ≳ 1010 GeV. Since Goldstone bosons do not generate r-1 but spin-dependent r-3 non-relativistic long-range potentials, the apparently most dramatic effect of massless bosons (new long-range forces competing with gravitation and electromagnetism) is easily avoidable (the Glasgow-Weinberg-Salam breaking scale is enough); μ→eG and K→πG provide the most restrictive bounds and probably the only possibility to look for Goldstone bosons in the laboratory.

Original languageEnglish
Pages (from-to)31-40
Number of pages10
JournalNuclear Physics, Section B
Volume219
Issue number1
DOIs
StatePublished - 13 Jun 1983

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