Elsevier

Physics Letters B

Volume 151, Issues 5–6, 21 February 1985, Pages 363-366
Physics Letters B

Peccei-Quinn symmetry breaking by radiative corrections in supergravity

https://doi.org/10.1016/0370-2693(85)91655-7Get rights and content

Abstract

We investigate the Peccei-Quinn symmetry U(1)PQ in supersymmetric theories coupled to N = 1 supergravity. U(1)PQ is identified with a usual global symmetry of the superpotential, rather than an R-symmetry which is explicitly broken by the soft supersymmetry breakings induced by supergravity. The scale of U(1)PO breaking is found to be MPQ∼MPlanck × exp(−4πλ2)∼108−12 GeV, as determined by the logarithmic evolution of soft supersymmetry breakings.

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Research supported in part by the DOE under Grant No. DE-AS05-79ER 10448.

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