The Octet of Goldstone-Bosons in the SU(3) Linear sigma Model in the QRPA

Details The Octet of Goldstone-Bosons in the SU(3) Linear sigma Model in the QRPA The Octet of Goldstone-Bosons in the SU(3) Linear sigma Model in the QRPA

1997-10-21

arxiv.org/abs/hep-ph/9710419v2

Mod.Phys.Lett. A13 (1998) 1827-1836

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages

Scientific paper

10.1142/S0217732398001911

A symmetry conserving, non-perturbative treatment based on a variational squeezed vacuum state in conjunction with a well-defined class of RPA fluctuations is applied to the SU(3) linear-sigma-model. It is shown that the Goldstone theorem holds exactly both at zero and finite temperature. The approach represents a systematic procedure which avoids problems of the Gaussian Functional with the symmetries.

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