Equation Icon  ( ) q⟨Φ ⟩ = − (δm )a − -1-(1 − 6ξ)q2Ru + q2 (g + u u ) 1-˙aν + 1R ν uλ + qΦtail, (424 ) μ μ 12 μ μν μ ν 3 6 λ μ