Radiative SU(2)×U(1) breaking from N=1 supergravity

Details Radiative SU(2)×U(1) breaking from N=1 supergravity Radiative SU(2)×U(1) breaking from N=1 supergravity

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aipc..116...91i&link_type=abstract

AIP Conference Proceedings, Volume 116, pp. 91-98 (1984).

Other

Unified Field Theories And Models, Other Internal And Higher Symmetries

Scientific paper

We consider the coupling of grand unified theories to N=1 supergravity. The breaking of N=1 local supersymmetry is only manifested at low energies through soft terms explicitly breaking the global supersymmetry. These soft terms (scalar masses, gaugino masses and trilinear scalar couplings) are renormalized at low energies according to the renormalization group. The (mass)2 of the Higgs doublet evolves towards negative values giving rise to SU(2)×U(1) breaking. This is achieved for masses of the top quark mt>~55 GeV. If gluino masses are Mg<~100 GeV, the breaking of SU(2)×U(1) requires mt>~100 GeV.

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