Year: 1999
Type: article
Abstract: We deal with extensions of the Standard Model adding horizontal interactions between particle generations. We calculate two-loop corrections caused by the presence of coupling between hypothetical horizontal gauge bosons and matter field at high energy. It is shown that the coupling of such extra bosons does not affect up to two-loop level the positive features of unified and extended Standard Model with horizontal symmetry discussed in former publications. Corrections from bosonic horizontal sector make up about tenth part of those caused by fermionic sector. Although small, they are larger than the accuracy of some electroweak measurements and therefore they might be important for future verification of various proposed horizontal models.
Author: DARIUSZ GRECH
Institution: University of Wrocław
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2017564992