One-Loop Effects in Supergravity Models with an Additional U(1)
Abstract
For an Abelian extended Supergravity model, we investigate some important low energy parameters: β, Z-Z' mixing angle, lightest CP-even Higgs mass bound, Z' mass, and effective μ parameter. By integrating the RGE's from string scale down to the weak scale we constuct the scalar potential, and analyze the quantities above at the tree- and one-loop levels by including the contributions of top squarks and top quark in the effective potential. PACS: 04.65.+e, 12.60.Jv
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