| Popis: |
A standard model for weak and electromagnetic interactions with the inclusion of a partially quantized gravitational field g ={ g αβ} is considered. The imposition of the causality condition on g αβ reduces them to the form g αβ (x)= g W(x)g αβ (x) where g W(x) is a scalar quantum field and gαβ(x) is a dynamical c-number metric. Expressing ĝW as a local functions of some other scalar field ĝf, whose kinetic term has the conventional form, we get g W(x)=− 4 3 0 : g f 2 (x): , where G0 is the Newton constant. The gravitational action integral S(g, g f) for gαβ and ĝf fields admits the spontaneous symmetry breaking. This implies that in the standard model with gravitational field included the scalar graviton field ĝf may play the role of Higgs field and may generate the masses of W and Z bosons, leptons and quarks. This shows that gravity may be responsible for all particle masses of the standard model. |
