# An Upper Bound on the Higgs Boson Mass from a Positivity Condition on the Mass Matrix

Research paper by Ali Al-Naghmoush, Murat Özer, M. O. Taha

Indexed on: 14 Jan '98Published on: 14 Jan '98Published in: High Energy Physics - Phenomenology

#### Abstract

We impose the condition that the eigenvalues of the mass matrix in the shifted Lagrangian density be positive at \phi=\phi_{0}, the vacuum expectation value of the scalar field. Using the one-loop effective potential of the standard model, this condition leads to an upper bound on the Higgs boson mass m_{H}: m_{H}<230GeV, for a top quark mass of 175GeV.