Chapter 6. Conclusion

This is the time to mention some developments of the considered model. The idea to give VEVs at the top and bottom elements of χ triplet was given in Ref. [114]. Some consequences such as the atomic parity violation, Z − Z 0 mixing angle and Z 0 mass were studied [24]. However, in the above-mentioned works, the W − Y and W4, Z, Z0 mixings were excluded. To solve the difficulties such as the standard model coupling ZZh or quark masses, the third scalar triplet was introduced. Thus, the scalar sector did not to be minimal anymore and the economical was though to be unrealistic!