Radiative Symmetry Breaking and the Top Quark Mass in Local Supersymmetry

Abstract

Exact low energy expressions are derived for the top-squark and higgs masses, taking into account radiative contributions due to a heavy top quark. Their masses are expressed as analytic functions of $m_{1/2}$, $m_{3/2}$, $m_t$ and $sin\beta$. Constraints from the radiative symmetry breaking mechanism are used then, to put lower bounds on the top-quark mass $m_t$. In particular, when $m_{3/2}\gg m_{1/2}$, we obtain the bound $m_t\ge 150sin\beta GeV$, while in the case of $m_{3/2}\equiv 0$, we obtain $m_t\ge 80sin\beta GeV$.

(Latex file, 8 pages, No figures) Ioannina preprint, July 1993, IOA.295/93

References in corpus (3)

• A new ansatz for quark and lepton mass matrices
• LEP and radiative electroweak breaking close the light gluino window
• Neutrino Masses in Flipped SU(5)

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