SYMMETRY PRINCIPLES TOWARD SOLUTIONS OF THE μ PROBLEM
- 14 December 1994
- journal article
- Published by World Scientific Pub Co Pte Ltd in Modern Physics Letters A
- Vol. 9 (38) , 3575-3583
- https://doi.org/10.1142/s0217732394003415
Abstract
We stress that a natural solution of the μ problem requires two ingredients: a symmetry that would enforce μ=0 as well as the occurrence of a small breaking parameter that generates a nonzero μ. It is suggested that both the Peccei-Quinn symmetry and the spontaneously broken R symmetry may be the sources of the needed μ term in the minimal supersymmetric standard model provided that they are spontaneously broken at a scale 1010–1012 GeV . To solve the strong CP problem with a hidden sector confining group, both of these symmetries are needed in superstring models with an anomalous U (1)A.Keywords
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