Consider symmetry SO(1,3)xU(1)=SU(2)xSU(2)xU(1) and puting a local spontaneous broken symmetry:(adsbygoogle = window.adsbygoogle || []).push({});

Φ→exp(iα^{a}τ^{a})exp(iα^{a}τ^{a})exp(i(β/2))Φ

The field Φ acquires vacuum expectation value: <Φ>=(0,v).

Then ΔL=½(0 v)(gC_{μ}^{a}τ^{a}+gA_{μ}^{a}τ^{a}+

½g'B_{μ})^{2}(0 v)^{T}.Then we find out three massive boson,one massless photon and two massless vector boson corresponding with 8 components of gravitation field h_{μ}_{ν}

Is that correct?

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# I Unified gravity with electroweak through SU(2)xSU(2)xU(1)

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