【摘要】 在本文中,我们讨论了一种SU(3)轻子模型,在此模型中左手和右手轻子具有平等的地位,并给出sin~2θw=1/4。为了减少Higgs粒子和Yukawa耦合常数的数目,我们还研究了由动力学自发破坏产生轻子质量差的可能性。通过有效势的计算(直到两圈图),得出:复合Goldstone粒子仅当余下的Yukawa耦合常数位于一确定的小范围之内时才能形成。由此并得出相应的重轻子质量为130GeV。更多还原

【Abstract】 A SU (3) lepton model is discussed in which the left- and right-handed leptons are on equal footing and sin~2θw=1/4 is obtained. Dynamical symmetry breaking is investigated to see if lepton mass difference can be generated in this way so as to reduce the number of Higgs scalars and Yukawa coupling constants. Calculating the effective potential up to two-loop graphs gives the results that composite Goldstone bosons can exist only when the remained Yukawa coupling constant lies within a certain range. The corresponding heavy lepton mass obtained is about 130 GeV.更多还原