一个N=1SUGRA统一模型

本文构造了一个定域超对称大统一SU(9)模型,讨论了规范对称破缺机制和由定域对称的辐射修正所引起的弱电对称性破缺。该模型容纳了三代通常费米子,具有重的色三重态,轻的WS二重态和标量物质粒子,得到了较流行的定域超对称SU(5)模型好的低能结果。Sin~2θw=0.205,α_c=0.135,Mx=6.6×10~(15)Gev,Ms=4.4×10~(11)Gev,Mw=85Gev,24≤m_L≤125.3Gev.mb～4Gev。

A N=1 SUGRA UNFIIED MODEL

In this paper a local SUSY GUT SU(9)model is constructed,and thebreaking mechanism and electroweak breaking induced by radiative correctionof susy breaking are discussed.This model includes three light fermiongenerations and possesses heavier color triplet,Light WS doublet,scalarmatter particles,and top quark.Results are better than the local susyGUTs SU(5)model.for example sin~2θ_w=0.25.αc=0.135.M_G=1.2×10~(19)Gev,Mx=6.6×10~(15)Gev,Ms=4.4×10~(11)Gev,M_w=85Gev.m_b～4Gev,24≤m_1≤125Gev。