Making neutrinos massive with an axion in supersymmetry

The minimal supersymmetric standard model (MSSM) of particle interactions i s extended to include three singlet (right-handed) neutrino superfields tog ether with three other singlet superfields. The resulting theory is assumed to be invariant under an anomalous global U(1) (Peccei-Quinn) symmetry wit h one fundamental mass m(2). The soft breaking of supersymmetry at the TeV scale is shown to generate an axion scale f(a) of order m(2). Neutrino mass es are generated by f(a) according to the usual seesaw mechanism. (C) 2001 Published by Elsevier Science B.V.