1. The Goldstone bosons of the symmetry breaking are the pseudoscalar mesons. 2. However, the phonon is the Goldstone boson for both. 3. A continuous broken symmetry leads to a Goldstone boson . 4. Normally, in the absence of the Higgs mechanism, massless Goldstone bosons arise. 5. The field fluctuations are called spin waves and can be recognized as Goldstone bosons . 6. These states are pseudo Goldstone bosons possessing a global charge that makes them stable against decay. 7. The latter become massive and their new, longitudinal polarization is provided by the Goldstone boson . 8. In theories with gauge symmetry, the Goldstone bosons are " eaten " by the gauge bosons. 9. This is called the "'Goldstone phenomenon "'and the bosons are called Goldstone bosons . 10. Also, massless bosons arising in field theories with spontaneous symmetry breaking are sometimes referred to as Nambu Goldstone bosons .
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