(* ::Package:: *) (* ::Input:: *) (*(*SELF-ENERGY AND BETA FUNCTIONS*)*) (**) (* ::Input::Closed:: *) (*(*INITIAL SETTINGS*)*) (* ::Input:: *) (*SetAttributes[\[Eta],Orderless]*) (*SetAttributes[f1, Orderless]*) (*SetAttributes[f2, Orderless]*) (*SetAttributes[f3, Orderless]*) (*SetAttributes[f4, Orderless]*) (*Unprotect[Power,Plus,Times];*) (*\[Eta][\[Mu]_,\[Nu]_]\[Eta][\[Nu]_,\[Rho]_]:=\[Eta][\[Mu],\[Rho]]*) (*\[Eta][\[Mu]_,\[Mu]_]:=4*) (*\[Eta][\[Mu]_,\[Nu]_]^2:=4*) (*\[Eta][\[Mu]_,\[Nu]_]p[\[Nu]_]:=p[\[Mu]]*) (*\[Eta][\[Mu]_,\[Nu]_]k[\[Nu]_]:=k[\[Mu]]*) (*\[Eta][\[Mu]_,\[Nu]_]q[\[Nu]_]:=q[\[Mu]]*) (*\[Eta][\[Mu]_,\[Nu]_]l[\[Nu]_]:=l[\[Mu]]*) (*p[\[Mu]_]^2:=p2*) (*k[\[Mu]_]^2:=k2*) (*q[\[Mu]_]^2:=q2*) (*l[\[Mu]_]^2:=l2*) (*p[m_] q[m_]:=pq*) (*p[m_] k[m_]:=pk*) (*q[m_] k[m_]:=qk*) (*l[m_]p[m_]:=lp*) (*l[m_]q[m_]:=lq*) (*l[m_]k[m_]:=lk*) (*(2p_)[m_]:=2(p[m])*) (*(-2p_)[m_]:=-2(p[m])*) (*(p_+q_)[m_]:= p[m]+ q[m]*) (*(-p_)[m_]:=-(p[m])*) (*\[CapitalLambda]^2:=0*) (*\[CapitalLambda]^3:=0*) (*\[CapitalLambda] Cc:=0*) (*\[CapitalLambda] Cc^2:=0*) (*\[CapitalLambda] Cc^3:=0*) (*\[CapitalLambda] p[m_]:=0*) (*\[CapitalLambda] pk:=0*) (*\[CapitalLambda] p2:=0*) (*\[CapitalLambda] p2^2:=0*) (*\[CapitalLambda] p2^3:=0*) (*\[CapitalLambda] p2^4:=0*) (*\[CapitalLambda] p2^5:=0*) (*\[CapitalLambda] p2^6:=0*) (*\[CapitalLambda] pk^2:=0*) (*\[CapitalLambda] pk^3:=0*) (*\[CapitalLambda] pk^4:=0*) (*\[CapitalLambda] pk^5:=0*) (*\[CapitalLambda] pk^6:=0*) (*Cc^2 p2:=0*) (*Cc^2 p[m_]:=0*) (*Cc^2 p2^2:=0*) (*Cc^2 p2^3:=0*) (*Cc^3:=0*) (*Cc^4:=0*) (* ::Input::Closed:: *) (*(*SUBSTITUTION RULES FOR SYMMETRIC INTEGRATION*)*) (* ::Input::Closed:: *) (* (*Function used to construct the rules*)*) (* ::Input:: *) (*F[m_]:=2/\[Pi] ((1+(-1)^m) Sqrt[\[Pi]] Gamma[(1+m)/2])/(4 Gamma[2+m/2])*) (* ::Input::Closed:: *) (* (*Functions used for the rules up to the 4 tensor case, p external, q integrated, m integer *)*) (* ::Input:: *) (**) (*F0[m_,p2_,q2_]:=p2^(m/2)q2^(m/2)F[m]*) (*F1[m_,r_,p_,p2_,q2_]:=p2^((m+1)/2-1)q2^((m+1)/2)F[m+1]p[r]*) (*F2[m_,r_,s_,p_,p2_,q2_]:=Expand[p2^((m+2)/2-2)q2^((m+2)/2) F[m+2]/(m+1) (p2 \[Eta][r,s]+m p[r]p[s])]*) (*F3[m_,r_,s_,t_,p_,p2_,q2_]:=Expand[p2^((m+3)/2-3)q2^((m+3)/2) F[m+3]/(m+2) (p2 (p[t] \[Eta][r,s]+p[r] \[Eta][t,s]+p[s] \[Eta][r,t])+(m-1)p[r]p[s]p[t])]*) (*F4[m_,r_,s_,t_,u_,p_,p2_,q2_]:=Expand[-(((1+(-1)^m) p2^(-2+m/2) q2^(2+m/2) (3 p[r] (-p2 ((1+2 m) Gamma[4+m/2] Gamma[(3+m)/2]-2 (1+m) Gamma[3+m/2] Gamma[(5+m)/2]) (p[u] \[Eta][s,t]+p[t] \[Eta][s,u])+p[s] (((8+11 m) Gamma[4+m/2] Gamma[(3+m)/2]-16 (1+m) Gamma[3+m/2] Gamma[(5+m)/2]) p[t] p[u]+p2 (-(1+2 m) Gamma[4+m/2] Gamma[(3+m)/2]+2 (1+m) Gamma[3+m/2] Gamma[(5+m)/2]) \[Eta][t,u]))+p2 (-3 ((1+2 m) Gamma[4+m/2] Gamma[(3+m)/2]-2 (1+m) Gamma[3+m/2] Gamma[(5+m)/2]) p[s] p[u] \[Eta][r,t]-3 ((1+2 m) Gamma[4+m/2] Gamma[(3+m)/2]-2 (1+m) Gamma[3+m/2] Gamma[(5+m)/2]) p[t] (p[u] \[Eta][r,s]+p[s] \[Eta][r,u])+p2 ((-2+m) Gamma[4+m/2] Gamma[(3+m)/2]-(1+m) Gamma[3+m/2] Gamma[(5+m)/2]) (\[Eta][r,u] \[Eta][s,t]+\[Eta][r,t] \[Eta][s,u]+\[Eta][r,s] \[Eta][t,u]))))/(30 (1+m) Sqrt[\[Pi]] Gamma[3+m/2] Gamma[4+m/2]))]*) (* ::Input::Closed:: *) (* (*Rules up to 14 integrated q, p external*)*) (* ::Input:: *) (**) (*rp1410=q[m_]q[n_]q[r_]q[s_]pq^10:>F4[10,m,n,r,s,p,p2,q2];*) (*rp1411=q[m_]q[n_]q[r_]pq^11:>F3[11,m,n,r,p,p2,q2];*) (*rp1412=q[m_]q[n_]pq^12:>F2[12,m,n,p,p2,q2];*) (*rp1413=q[m_]pq^13:>F1[13,m,p,p2,q2];*) (*rp1414=pq^14:>F0[14,p2,q2];*) (*rp128=q[m_]q[n_]q[r_]q[s_]pq^8:>F4[8,m,n,r,s,p,p2,q2];*) (*rp129=q[m_]q[n_]q[r_]pq^9:>F3[9,m,n,r,p,p2,q2];*) (*rp1210=q[m_]q[n_]pq^10:>F2[10,m,n,p,p2,q2];*) (*rp1211=q[m_]pq^11:>F1[11,m,p,p2,q2];*) (*rp1212=pq^12:>F0[12,p2,q2];*) (*rp106=q[m_]q[n_]q[r_]q[s_]pq^6:>F4[6,m,n,r,s,p,p2,q2];*) (*rp107=q[m_]q[n_]q[r_]pq^7:>F3[7,m,n,r,p,p2,q2];*) (*rp108=q[m_]q[n_]pq^8:>F2[8,m,n,p,p2,q2];*) (*rp109=q[m_]pq^9:>F1[9,m,p,p2,q2];*) (*rp1010=pq^10:>F0[10,p2,q2];*) (*rp84=q[m_]q[n_]q[r_]q[s_]pq^4:>F4[4,m,n,r,s,p,p2,q2];*) (*rp85=q[m_]q[n_]q[r_]pq^5:>F3[5,m,n,r,p,p2,q2];*) (*rp86=q[m_]q[n_]pq^6:>F2[6,m,n,p,p2,q2];*) (*rp87=q[m_]pq^7:>F1[7,m,p,p2,q2];*) (*rp88=pq^8:>F0[8,p2,q2];*) (*rp62=q[m_]q[n_]q[r_]q[s_]pq^2:>F4[2,m,n,r,s,p,p2,q2];*) (*rp63=q[m_]q[n_]q[r_]pq^3:>F3[3,m,n,r,p,p2,q2];*) (*rp64=q[m_]q[n_]pq^4:>F2[4,m,n,p,p2,q2];*) (*rp65=q[m_]pq^5:>F1[5,m,p,p2,q2];*) (*rp66=pq^6:>F0[6,p2,q2];*) (*rp40=q[m_]q[n_]q[r_]q[s_]:>F4[0,m,n,r,s,p,p2,q2];*) (*rp41=q[m_]q[n_]q[r_]pq:>F3[1,m,n,r,p,p2,q2];*) (*rp42=q[m_]q[n_]pq^2:>F2[2,m,n,p,p2,q2];*) (*rp43=q[m_]pq^3:>F1[3,m,p,p2,q2];*) (*rp44=pq^4:>F0[4,p2,q2];*) (*rp20=q[m_]q[n_]:>(q2/4)\[Eta][m,n];*) (*rp21=q[m_]pq:>(q2/4)p[m];*) (*rp22=pq^2:>q2 p2/4;*) (* ::Input::Closed:: *) (*(*EXPANSION OF CURVATURE TENSORS UP TO THE 4TH ORDER IN THE GRAVITON FIELD*)*) (* ::Input:: *) (**) (*(*Metric expanded as g[m,n]=\[Eta][m,n]+f[m,n]*)*) (**) (*(*Inverse metric*)*) (**) (*ginv1[m_,n_,f1_]:=-f1[m,n]*) (*ginv2[m_,n_,f1_,f2_,a_]:=f1[m,a]f2[a,n]*) (*ginv3[m_,n_,f1_,f2_,f3_,a_,b_]:=-f1[m,a]f2[a,b]f3[b,n]*) (**) (*(*Connection*)*) (**) (*\[CapitalGamma]1[m_,n_,r_,f1_,p_]:=Expand[1/2 (I p[m]f1[n,r]+I p[n]f1[m,r]-I p[r]f1[m,n])]*) (*\[CapitalGamma]2[m_,n_,r_,f1_,p_,f2_,a_]:=Expand[ginv1[r,a,f2]\[CapitalGamma]1[m,n,a,f1,p]]*) (*\[CapitalGamma]3[m_,n_,r_,f1_,p_,f2_,f3_,a_,b_]:=Expand[ginv2[r,a,f2,f3,b]\[CapitalGamma]1[m,n,a,f1,p]]*) (*\[CapitalGamma]4[m_,n_,r_,f1_,p_,f2_,f3_,f4_,a_,b_,c_]:=Expand[ginv3[r,a,f2,f3,f4,b,c]\[CapitalGamma]1[m,n,a,f1,p]]*) (**) (*(*Ricci tensor*)*) (**) (*Ric1[m_,n_,f1_,p_,a_]:=Expand[I p[a]\[CapitalGamma]1[m,n,a,f1,p]-I p[n]\[CapitalGamma]1[m,a,a,f1,p]]*) (*Ric2[m_,n_,f1_,p_,f2_,k_,a_,b_]:=Expand[I (p[a]+k[a])\[CapitalGamma]2[m,n,a,f1,p,f2,b]-I (p[n]+k[n])\[CapitalGamma]2[m,a,a,f1,p,f2,b]+\[CapitalGamma]1[b,a,a,f1,p]\[CapitalGamma]1[m,n,b,f2,k]-\[CapitalGamma]1[b,n,a,f1,p]\[CapitalGamma]1[m,a,b,f2,k]]*) (*Ric3[m_,n_,f1_,p_,f2_,k_,f3_,q_,a_,b_,c_]:=Expand[I (p[a]+k[a]+q[a])\[CapitalGamma]3[m,n,a,f1,p,f2,f3,b,c]-I (p[n]+k[n]+q[n])\[CapitalGamma]3[m,a,a,f1,p,f2,f3,b,c]+\[CapitalGamma]2[b,a,a,f1,p,f3,c]\[CapitalGamma]1[m,n,b,f2,k]+\[CapitalGamma]1[b,a,a,f1,p]\[CapitalGamma]2[m,n,b,f2,k,f3,c]-\[CapitalGamma]2[b,n,a,f1,p,f3,c]\[CapitalGamma]1[m,a,b,f2,k]-\[CapitalGamma]1[b,n,a,f1,p]\[CapitalGamma]2[m,a,b,f2,k,f3,c]]*) (*Ric4[m_,n_,f1_,p_,f2_,k_,f3_,q_,f4_,l_,a_,b_,c_,d_]:=Expand[I (p[a]+k[a]+q[a]+l[a])\[CapitalGamma]4[m,n,a,f1,p,f2,f3,f4,b,c,d]-I (p[n]+k[n]+q[n]+l[n])\[CapitalGamma]4[m,a,a,f1,p,f2,f3,f4,b,c,d]+\[CapitalGamma]3[b,a,a,f1,p,f2,f3,c,d]\[CapitalGamma]1[m,n,b,f4,l]+\[CapitalGamma]2[b,a,a,f1,p,f2,c]\[CapitalGamma]2[m,n,b,f3,q,f4,d]+\[CapitalGamma]1[b,a,a,f1,p]\[CapitalGamma]3[m,n,b,f2,k,f3,f4,c,d]-\[CapitalGamma]3[b,n,a,f1,p,f2,f3,c,d]\[CapitalGamma]1[m,a,b,f4,l]-\[CapitalGamma]2[b,n,a,f1,p,f2,c]\[CapitalGamma]2[m,a,b,f3,q,f4,d]-\[CapitalGamma]1[b,n,a,f1,p]\[CapitalGamma]3[m,a,b,f2,k,f3,f4,c,d]]*) (**) (*(*Ricci scalar*)*) (**) (*R1[f1_,p_,a_,b_]:=Expand[Ric1[b,b,f1,p,a]]*) (*R2[f1_,p_,f2_,k_,a_,b_,c_]:=Expand[Expand[Ric2[c,c,f1,p,f2,k,a,b]]+Expand[ginv1[a,b,f1]Ric1[a,b,f2,k,c]]]*) (*R3[f1_,p_,f2_,k_,f3_,q_,a_,b_,c_,d_]:=Expand[Expand[Ric3[d,d,f1,p,f2,k,f3,q,a,b,c]]+Expand[ginv1[a,b,f3]Ric2[a,b,f1,p,f2,k,c,d]]+Expand[ginv2[a,b,f2,f3,c]Ric1[a,b,f1,p,d]]]*) (*R4[f1_,p_,f2_,k_,f3_,q_,f4_,l_,a_,b_,c_,d_,e_]:=Expand[Expand[Ric4[a,a,f1,p,f2,k,f3,q,f4,l,b,c,d,e]]+Expand[ginv1[a,b,f4]Ric3[a,b,f1,p,f2,k,f3,q,c,d,e]]+Expand[ginv2[a,b,f1,f2,c]Ric2[a,b,f3,q,f4,l,d,e]]+Expand[ginv3[a,b,f1,f2,f3,c,d]Ric1[a,b,f4,l,e]]]*) (**) (*(*Square root of det g*)*) (**) (*sqrtg1[f1_,a_]:=1/2 f1[a,a]*) (*sqrtg2[f1_,f2_,a_,b_]:=1/8 f1[a,a]f2[b,b]-1/4 f1[a,b]f2[b,a]*) (*sqrtg3[f1_,f2_,f3_,a_,b_,c_]:=1/48 f1[a,a]f2[b,b]f3[c,c]-1/8 f1[a,a]f2[b,c]f3[b,c]+1/6 f1[a,b]f2[b,c]f3[c,a]*) (*sqrtg4[f1_,f2_,f3_,f4_,a_,b_,c_,d_]:=(f1[a,a]f2[b,b]f3[c,c]f4[d,d])/384-(f1[a,a]f2[b,b] f3[c,d]f4[d,c])/32+(f1[a,b]f2[a,b]f3[c,d]f4[c,d])/32+(f1[a,a] f2[b,c]f3[c,d]f4[d,b])/12-(f1[a,b] f2[b,c]f3[c,d]f4[d,a])/8*) (**) (* ::Input::Closed:: *) (*(*EUCLIDEAN VERTICES*)*) (* ::Input::Closed:: *) (* (*Three graviton vertex, momenta and indices: f1\[Rule](p,\[Mu],\[Nu]), f2\[Rule](k,\[Rho],\[Sigma]), f3\[Rule](q,\[Alpha],\[Beta])*)*) (* ::Input:: *) (**) (*VV3[\[Mu]_,\[Nu]_,p_,\[Rho]_,\[Sigma]_,k_,\[Alpha]_,\[Beta]_,q_,m_,n_,a_,b_,c_]:=Expand[( Aa (Expand[2 Ric2[m,n,f1,p,f2,k,a,b]Ric1[m,n,f3,q,c]]+Expand[sqrtg1[f1,a]Ric1[m,n,f2,k,b]Ric1[m,n,f3,q,c]]+2 Expand[Ric1[m,n,f1,p,a]Ric1[c,n,f2,k,b]ginv1[m,c,f3]])+1/2 (Bb-Aa) (Expand[2Ric2[m,m,f1,p,f2,k,a,b]Ric1[n,n,f3,q,c]]+Expand[sqrtg1[f1,a]Ric1[m,m,f2,k,b]Ric1[n,n,f3,q,c]]+2 Expand[Ric1[m,n,f1,p,a]Ric1[c,c,f2,k,b]ginv1[m,n,f3]])+Cc(ExpandAll[(Expand[Expand[Ric3[c,c,f1,p,f2,k,f3,q,a,b,m]]+Expand[ginv1[a,b,f3]Ric2[a,b,f1,p,f2,k,m,c]]+Expand[ginv2[a,b,f2,f3,m]Ric1[a,b,f1,p,c]]]*) (*+sqrtg1[f3,n](Expand[Expand[Ric2[m,m,f1,p,f2,k,a,b]]+Expand[ginv1[a,b,f1]Ric1[a,b,f2,k,m]]])+sqrtg2[f3,f2,a,b]Expand[Ric1[c,c,f1,p,m]])])-ExpandAll[2\[CapitalLambda] sqrtg3[f1,f2,f3,a,b,c]])/.{f1[x_,y_]:>1/2 (\[Eta][x,\[Mu]]\[Eta][y,\[Nu]]+\[Eta][x,\[Nu]]\[Eta][y,\[Mu]]),f2[z_,t_]:>1/2 (\[Eta][z,\[Rho]]\[Eta][t,\[Sigma]]+\[Eta][z,\[Sigma]]\[Eta][t,\[Rho]]),f3[u_,w_]:>1/2 (\[Eta][u,\[Alpha]]\[Eta][w,\[Beta]]+\[Eta][u,\[Beta]]\[Eta][w,\[Alpha]])}]*) (**) (*V3Sym[\[Mu]_,\[Nu]_,p_,\[Rho]_,\[Sigma]_,k_,\[Alpha]_,\[Beta]_,q_,m_,n_,a_,b_,c_]:=ExpandAll[VV3[\[Mu],\[Nu],p,\[Rho],\[Sigma],k,\[Alpha],\[Beta],q,m,n,a,b,c]+VV3[\[Mu],\[Nu],p,\[Alpha],\[Beta],q,\[Rho],\[Sigma],k,m,n,a,b,c]+VV3[\[Rho],\[Sigma],k,\[Mu],\[Nu],p,\[Alpha],\[Beta],q,m,n,a,b,c]+VV3[\[Rho],\[Sigma],k,\[Alpha],\[Beta],q,\[Mu],\[Nu],p,m,n,a,b,c]+VV3[\[Alpha],\[Beta],q,\[Mu],\[Nu],p,\[Rho],\[Sigma],k,m,n,a,b,c]+VV3[\[Alpha],\[Beta],q,\[Rho],\[Sigma],k,\[Mu],\[Nu],p,m,n,a,b,c]]*) (**) (* ::Input::Closed:: *) (* (*Four gravitons vertex, momenta and indices f1\[Rule](p,\[Mu],\[Nu]), f2\[Rule](k,\[Rho],\[Sigma]), f3\[Rule](q,\[Alpha],\[Beta]), f4\[Rule](l,\[Gamma],\[Delta])*)*) (* ::Input:: *) (*VV4[\[Mu]_,\[Nu]_,p_,\[Rho]_,\[Sigma]_,k_,\[Alpha]_,\[Beta]_,q_,\[Gamma]_,\[Delta]_,l_,m_,n_,a_,b_,c_,d_,e_]:=ExpandAll[(Aa(Expand[Ric1[m,n,f1,p,a]Ric1[c,d,f2,k,b]ginv1[m,c,f3]ginv1[n,d,f4]]+2Expand[Ric1[m,n,f1,p,a]Ric1[c,n,f2,k,b]ginv2[m,c,f3,f4,e]]+4Expand[Ric1[m,n,f1,p,a]Ric2[c,n,f2,k,f3,q,b,e]ginv1[m,c,f4]]+Expand[Ric2[m,n,f1,p,f2,k,a,b]Ric2[m,n,f3,q,f4,l,c,d]]+2Expand[Ric3[m,n,f1,p,f2,k,f3,q,a,b,c]Ric1[m,n,f4,l,d]]+2Expand[sqrtg1[f1,a]Ric1[m,n,f2,k,b]Ric1[c,n,f3,q,d]ginv1[m,c,f4]]+2Expand[sqrtg1[f1,a]Ric1[m,n,f2,k,b]Ric2[m,n,f3,q,f4,l,c,d]]+Expand[sqrtg2[f1,f2,a,b]Ric1[m,n,f3,q,c]Ric1[m,n,f4,l,d]])+1/2 (Bb-Aa)(Expand[Ric1[m,n,f1,p,a]Ric1[c,d,f2,k,b]ginv1[m,n,f3]ginv1[c,d,f4]]+2Expand[Ric1[m,n,f1,p,a]Ric1[c,c,f2,k,b]ginv2[m,n,f3,f4,e]]+2Expand[Ric1[m,n,f1,p,a]Ric2[c,c,f2,k,f3,q,b,e]ginv1[m,n,f4]]+2Expand[Ric1[c,c,f1,p,a]Ric2[m,n,f2,k,f3,q,b,e]ginv1[m,n,f4]]+Expand[Ric2[m,m,f1,p,f2,k,a,b]Ric2[n,n,f3,q,f4,l,c,d]]+2Expand[Ric3[m,m,f1,p,f2,k,f3,q,a,b,c]Ric1[n,n,f4,l,d]]+2Expand[sqrtg1[f1,a]Ric1[m,n,f2,k,b]Ric1[c,c,f3,q,d]ginv1[m,n,f4]]+2Expand[sqrtg1[f1,a]Ric1[m,m,f2,k,b]Ric2[n,n,f3,q,f4,l,c,d]]+Expand[sqrtg2[f1,f2,a,b]Ric1[m,m,f3,q,c]Ric1[n,n,f4,l,d]])*) (*+Cc(R4[f1,p,f2,k,f3,q,f4,l,a,b,c,d,e]+sqrtg1[f1,a]R3[f2,k,f3,q,f4,l,b,c,d,e]+sqrtg2[f1,f2,a,b]R2[f3,q,f4,l,c,d,e]+sqrtg3[f1,f2,f3,a,b,c]R1[f4,l,d,e])-ExpandAll[2\[CapitalLambda] sqrtg4[f1,f2,f3,f4,a,b,c,d]])/.{f1[x_,y_]->1/2 (\[Eta][x,\[Mu]]\[Eta][y,\[Nu]]+\[Eta][x,\[Nu]]\[Eta][y,\[Mu]]),f2[z_,t_]->1/2 (\[Eta][z,\[Rho]]\[Eta][t,\[Sigma]]+\[Eta][z,\[Sigma]]\[Eta][t,\[Rho]]),f3[u_,w_]->1/2 (\[Eta][u,\[Alpha]]\[Eta][w,\[Beta]]+\[Eta][u,\[Beta]]\[Eta][w,\[Alpha]]),f4[h_,i_]->1/2 (\[Eta][h,\[Gamma]]\[Eta][i,\[Delta]]+\[Eta][h,\[Delta]]\[Eta][i,\[Gamma]])}]*) (**) (*V4Sym[\[Mu]_,\[Nu]_,p_,\[Rho]_,\[Sigma]_,k_,\[Alpha]_,\[Beta]_,q_,\[Gamma]_,\[Delta]_,l_,m_,n_,a_,b_,c_,d_,e_]:=ExpandAll[(VV4[\[Mu],\[Nu],p,\[Rho],\[Sigma],k,\[Alpha],\[Beta],q,\[Gamma],\[Delta],l,m,n,a,b,c,d,e]+VV4[\[Mu],\[Nu],p,\[Rho],\[Sigma],k,\[Gamma],\[Delta],l,\[Alpha],\[Beta],q,m,n,a,b,c,d,e]+VV4[\[Mu],\[Nu],p,\[Alpha],\[Beta],q,\[Rho],\[Sigma],k,\[Gamma],\[Delta],l,m,n,a,b,c,d,e]+VV4[\[Mu],\[Nu],p,\[Alpha],\[Beta],q,\[Gamma],\[Delta],l,\[Rho],\[Sigma],k,m,n,a,b,c,d,e]+*) (*VV4[\[Mu],\[Nu],p,\[Gamma],\[Delta],l,\[Rho],\[Sigma],k,\[Alpha],\[Beta],q,m,n,a,b,c,d,e]+*) (*VV4[\[Mu],\[Nu],p,\[Gamma],\[Delta],l,\[Alpha],\[Beta],q,\[Rho],\[Sigma],k,m,n,a,b,c,d,e]+*) (*VV4[\[Rho],\[Sigma],k,\[Mu],\[Nu],p,\[Alpha],\[Beta],q,\[Gamma],\[Delta],l,m,n,a,b,c,d,e]+*) (*VV4[\[Rho],\[Sigma],k,\[Mu],\[Nu],p,\[Gamma],\[Delta],l,\[Alpha],\[Beta],q,m,n,a,b,c,d,e]+*) (*VV4[\[Rho],\[Sigma],k,\[Alpha],\[Beta],q,\[Mu],\[Nu],p,\[Gamma],\[Delta],l,m,n,a,b,c,d,e]+*) (*VV4[\[Rho],\[Sigma],k,\[Alpha],\[Beta],q,\[Gamma],\[Delta],l,\[Mu],\[Nu],p,m,n,a,b,c,d,e]+*) (*VV4[\[Rho],\[Sigma],k,\[Gamma],\[Delta],l,\[Mu],\[Nu],p,\[Alpha],\[Beta],q,m,n,a,b,c,d,e]+*) (*VV4[\[Rho],\[Sigma],k,\[Gamma],\[Delta],l,\[Alpha],\[Beta],q,\[Mu],\[Nu],p,m,n,a,b,c,d,e]+*) (*VV4[\[Alpha],\[Beta],q,\[Mu],\[Nu],p,\[Rho],\[Sigma],k,\[Gamma],\[Delta],l,m,n,a,b,c,d,e]+*) (*VV4[\[Alpha],\[Beta],q,\[Mu],\[Nu],p,\[Gamma],\[Delta],l,\[Rho],\[Sigma],k,m,n,a,b,c,d,e]+*) (*VV4[\[Alpha],\[Beta],q,\[Rho],\[Sigma],k,\[Mu],\[Nu],p,\[Gamma],\[Delta],l,m,n,a,b,c,d,e]+*) (*VV4[\[Alpha],\[Beta],q,\[Rho],\[Sigma],k,\[Gamma],\[Delta],l,\[Mu],\[Nu],p,m,n,a,b,c,d,e]+*) (*VV4[\[Alpha],\[Beta],q,\[Gamma],\[Delta],l,\[Mu],\[Nu],p,\[Rho],\[Sigma],k,m,n,a,b,c,d,e]+*) (*VV4[\[Alpha],\[Beta],q,\[Gamma],\[Delta],l,\[Rho],\[Sigma],k,\[Mu],\[Nu],p,m,n,a,b,c,d,e]+*) (*VV4[\[Gamma],\[Delta],l,\[Mu],\[Nu],p,\[Rho],\[Sigma],k,\[Alpha],\[Beta],q,m,n,a,b,c,d,e]+*) (*VV4[\[Gamma],\[Delta],l,\[Mu],\[Nu],p,\[Alpha],\[Beta],q,\[Rho],\[Sigma],k,m,n,a,b,c,d,e]+*) (*VV4[\[Gamma],\[Delta],l,\[Rho],\[Sigma],k,\[Mu],\[Nu],p,\[Alpha],\[Beta],q,m,n,a,b,c,d,e]+*) (*VV4[\[Gamma],\[Delta],l,\[Rho],\[Sigma],k,\[Alpha],\[Beta],q,\[Mu],\[Nu],p,m,n,a,b,c,d,e]+*) (*VV4[\[Gamma],\[Delta],l,\[Alpha],\[Beta],q,\[Mu],\[Nu],p,\[Rho],\[Sigma],k,m,n,a,b,c,d,e]+VV4[\[Gamma],\[Delta],l,\[Alpha],\[Beta],q,\[Rho],\[Sigma],k,\[Mu],\[Nu],p,m,n,a,b,c,d,e])]*) (**) (* ::Input::Closed:: *) (* (*Graviton-Ghost-Antighost vertex, momenta and indices: antighost\[Rule](\[Mu],q), ghost\[Rule](\[Nu],p), f1\[Rule](\[Alpha],\[Beta],k)*)*) (* ::Input:: *) (**) (*Vgh[\[Mu]_,\[Nu]_,p_,\[Alpha]_,\[Beta]_,k_,n_]:=Expand[-Expand[I(p[n]+k[n])(f1[\[Mu],\[Nu]]I p[n]+f1[\[Nu],n]I p[\[Mu]]+I k[\[Nu]]f1[\[Mu],n])-\[Omega] I(p[\[Mu]]+k[\[Mu]])(f1[\[Nu],n]I p[n]+1/2 f1[n,n]I k[\[Nu]])]/.{f1[x_,y_]:>1/2 (\[Eta][x,\[Alpha]]\[Eta][y,\[Beta]]+\[Eta][x,\[Beta]]\[Eta][y,\[Alpha]])}]*) (* ::Input::Closed:: *) (*(*PROPAGATORS*)*) (* ::Input::Closed:: *) (* (*Graviton propagator*)*) (* ::Input::Closed:: *) (* (*0 momenta in the numerator, Part I*)*) (* ::Input:: *) (*(*Numerator*)*) (*N01[\[Mu]_,\[Nu]_,\[Rho]_,\[Sigma]_,p_]:= \[Eta][\[Mu],\[Nu]]\[Eta][\[Rho],\[Sigma]]*) (**) (*(*Denominator*)*) (*D01[p2_]:=-(4 \[CapitalLambda] (-Bb p2^2+\[CapitalLambda])+Cc^2 p2^2 \[Lambda] (-2+\[Omega])^2+Aa^2 p2^4 \[Lambda] (-2+\[Omega])^2-2 Cc p2 (\[CapitalLambda]+2 \[Lambda] \[CapitalLambda]+Aa p2^2 \[Lambda] (-2+\[Omega])^2-Bb p2^2 \[Lambda] (-2+\[Omega])^2-\[Lambda] \[CapitalLambda] \[Omega]^2)-2 Aa p2^2 (Bb p2^2 \[Lambda] (-2+\[Omega])^2+\[CapitalLambda] (-1+\[Lambda] (-2+\[Omega]^2))))/((Cc p2-Aa p2^2-2 \[CapitalLambda]) (-6 Bb p2^2 \[CapitalLambda]+4 \[CapitalLambda]^2+Cc^2 p2^2 \[Lambda] (-2+\[Omega])^2+Aa^2 p2^4 \[Lambda] (-2+\[Omega])^2+Aa p2^2 (-3 Bb p2^2 \[Lambda] (-2+\[Omega])^2+2 \[CapitalLambda] (1+\[Lambda]+2 \[Lambda] \[Omega]-2 \[Lambda] \[Omega]^2))-Cc p2 (2 Aa p2^2 \[Lambda] (-2+\[Omega])^2-3 Bb p2^2 \[Lambda] (-2+\[Omega])^2+2 \[CapitalLambda] (1+\[Lambda]+2 \[Lambda] \[Omega]-2 \[Lambda] \[Omega]^2))))*) (**) (**) (* ::Input::Closed:: *) (* (*0 momenta in the numerator Part II*)*) (* ::Input:: *) (**) (*(*Numerator*)*) (*N02[\[Mu]_,\[Nu]_,\[Rho]_,\[Sigma]_,p_]:=\[Eta][\[Mu],\[Rho]] \[Eta][\[Nu],\[Sigma]]+\[Eta][\[Mu],\[Sigma]] \[Eta][\[Nu],\[Rho]]*) (**) (*(*Denominator*)*) (*D02[p2_]:=1/(Cc p2-Aa p2^2-2 \[CapitalLambda])*) (* ::Input::Closed:: *) (* (*2 momenta in the numerator*)*) (* ::Input:: *) (*(*Numerator*)*) (*N2[\[Mu]_,\[Nu]_,\[Rho]_,\[Sigma]_,p_]:=(p[\[Rho]] p[\[Sigma]] \[Eta][\[Mu],\[Nu]]+p[\[Mu]] p[\[Nu]] \[Eta][\[Rho],\[Sigma]])*) (**) (*(*Denominator*)*) (*D2[p2_]:=(2 (Cc^2 p2 \[Lambda] (2-3 \[Omega]+\[Omega]^2)+Cc \[Lambda] (Bb p2^2 (-2+\[Omega])^2+2 \[CapitalLambda] (-1+\[Omega])-2 Aa p2^2 (2-3 \[Omega]+\[Omega]^2))+p2 (-2 Bb \[CapitalLambda]-Aa \[Lambda] (Bb p2^2 (-2+\[Omega])^2+2 \[CapitalLambda] (-1+\[Omega]))+Aa^2 p2^2 \[Lambda] (2-3 \[Omega]+\[Omega]^2))))/((Cc p2-Aa p2^2-2 \[CapitalLambda]) (-6 Bb p2^2 \[CapitalLambda]+4 \[CapitalLambda]^2+Cc^2 p2^2 \[Lambda] (-2+\[Omega])^2+Aa^2 p2^4 \[Lambda] (-2+\[Omega])^2+Aa p2^2 (-3 Bb p2^2 \[Lambda] (-2+\[Omega])^2+2 \[CapitalLambda] (1+\[Lambda]+2 \[Lambda] \[Omega]-2 \[Lambda] \[Omega]^2))-Cc p2 (2 Aa p2^2 \[Lambda] (-2+\[Omega])^2-3 Bb p2^2 \[Lambda] (-2+\[Omega])^2+2 \[CapitalLambda] (1+\[Lambda]+2 \[Lambda] \[Omega]-2 \[Lambda] \[Omega]^2))))*) (* ::Input::Closed:: *) (* (*4 momenta in the numerator*)*) (* ::Input:: *) (*(*Numerator*)*) (*N4[\[Mu]_,\[Nu]_,\[Rho]_,\[Sigma]_,p_]:=(p[\[Mu]] p[\[Nu]] p[\[Rho]]p[\[Sigma]])*) (**) (*(*Denominator*)*) (*D4[p2_]:=(4 (4 Bb \[CapitalLambda]^2-Cc^3 p2 \[Lambda] (-1+\[Omega]) (-3+\[Lambda]+\[Omega]+\[Lambda] \[Omega])+Aa^3 p2^4 \[Lambda] (-1+\[Omega]) (-3+\[Lambda]+\[Omega]+\[Lambda] \[Omega])-4 Aa Bb p2^2 \[Lambda] \[CapitalLambda] (2-4 \[Omega]+\[Omega]^2)+Aa^2 p2^2 \[Lambda] (4 \[CapitalLambda] (-1+\[Omega]) (-1+\[Lambda] \[Omega])+Bb p2^2 (\[Lambda] (-2+\[Omega])^2-3 (3-4 \[Omega]+\[Omega]^2)))+Cc^2 \[Lambda] (4 \[CapitalLambda] (-1+\[Omega]) (-1+\[Lambda] \[Omega])+3 Aa p2^2 (-1+\[Omega]) (-3+\[Lambda]+\[Omega]+\[Lambda] \[Omega])+Bb p2^2 (\[Lambda] (-2+\[Omega])^2-3 (3-4 \[Omega]+\[Omega]^2)))+Cc p2 \[Lambda] (-3 Aa^2 p2^2 (-1+\[Omega]) (-3+\[Lambda]+\[Omega]+\[Lambda] \[Omega])+4 Bb \[CapitalLambda] (2-4 \[Omega]+\[Omega]^2)-2 Aa (4 \[CapitalLambda] (-1+\[Omega]) (-1+\[Lambda] \[Omega])+Bb p2^2 (\[Lambda] (-2+\[Omega])^2-3 (3-4 \[Omega]+\[Omega]^2))))))/((Cc p2-Aa p2^2-2 \[CapitalLambda]) (Cc p2 \[Lambda]-Aa p2^2 \[Lambda]-2 \[CapitalLambda]) (-6 Bb p2^2 \[CapitalLambda]+4 \[CapitalLambda]^2+Cc^2 p2^2 \[Lambda] (-2+\[Omega])^2+Aa^2 p2^4 \[Lambda] (-2+\[Omega])^2+Aa p2^2 (-3 Bb p2^2 \[Lambda] (-2+\[Omega])^2+2 \[CapitalLambda] (1+\[Lambda]+2 \[Lambda] \[Omega]-2 \[Lambda] \[Omega]^2))-Cc p2 (2 Aa p2^2 \[Lambda] (-2+\[Omega])^2-3 Bb p2^2 \[Lambda] (-2+\[Omega])^2+2 \[CapitalLambda] (1+\[Lambda]+2 \[Lambda] \[Omega]-2 \[Lambda] \[Omega]^2))))*) (* ::Input::Closed:: *) (* (*Part which vanishes at \[Lambda]=1*)*) (* ::Input:: *) (*(*Numerator*)*) (*NL[\[Mu]_,\[Nu]_,\[Rho]_,\[Sigma]_,p_]:=(p[\[Mu]] p[\[Rho]] \[Eta][\[Nu],\[Sigma]]+p[\[Mu]] p[\[Sigma]] \[Eta][\[Nu],\[Rho]]+p[\[Nu]] p[\[Rho]] \[Eta][\[Mu],\[Sigma]]+p[\[Nu]] p[\[Sigma]] \[Eta][\[Mu],\[Rho]])*) (**) (*(*Denominator*)*) (*DL[p2_]:=-(((Cc-Aa p2) (-1+\[Lambda]))/((Cc p2-Aa p2^2-2 \[CapitalLambda]) (Cc p2 \[Lambda]-Aa p2^2 \[Lambda]-2 \[CapitalLambda])))*) (* ::Input::Closed:: *) (* (*Ghost propagator*)*) (* ::Input:: *) (*(*Numerator*)*) (*Ngh[\[Mu]_,\[Nu]_,p_,a_]:=(\[Omega]-1)/(\[Omega]-2) p[\[Mu]]p[\[Nu]]-p[a]p[a]\[Eta][\[Mu],\[Nu]]*) (*(*Denominator 1/p2^2*)*) (**) (* ::Input::Closed:: *) (*(*SELF-ENERGY*)*) (* ::Input::Closed:: *) (* (*Graviton loop*)*) (* ::Input::Closed:: *) (* (*Bubble diagram*)*) (* ::Input::Closed:: *) (* (*Diagram evaluation*)*) (* ::Input:: *) (*d30101=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N01[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]N01[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d30102=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N01[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]N02[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d30202=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N02[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]N02[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d3012=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N01[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]N2[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d3022=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N02[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]N2[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (*d322=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N2[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]N2[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d3014=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N01[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]N4[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d3024=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N02[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]N4[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d324=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N2[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]N4[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d344=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N4[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]N4[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d301L=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N01[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]NL[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d302L=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N02[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]NL[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d32L=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N2[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]NL[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d34L=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]N4[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]NL[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (**) (*d3LL=ExpandAll[ExpandAll[ExpandAll[V3Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,k-p,\[Mu]2,\[Nu]2,-k,m1,n1,a1,b1,c1]NL[\[Mu]1,\[Nu]1,\[Rho]1,\[Sigma]1,k-p]]ExpandAll[V3Sym[\[Rho],\[Sigma],-p,\[Rho]1,\[Sigma]1,p-k,\[Rho]2,\[Sigma]2,k,m2,n2,a2,b2,c2]NL[\[Mu]2,\[Nu]2,\[Rho]2,\[Sigma]2,k]]]];*) (* ::Input::Closed:: *) (* (*UV expansion and divergent parts*)*) (* ::Input:: *) (*Expand[1/2 (d30101 D01[k2-2pk+p2]D01[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D30101=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d30102 D01[k2-2pk+p2]D02[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D30102=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d30202 D02[k2-2pk+p2]D02[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D30202=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d3012 D01[k2-2pk+p2]D2[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D3012=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d3022 D02[k2-2pk+p2]D2[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D3022=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d322 D2[k2-2pk+p2]D2[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D322=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d3014 D01[k2-2pk+p2]D4[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D3014=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d3024 D02[k2-2pk+p2]D4[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D3024=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d324 D2[k2-2pk+p2]D4[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D324=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d344 D4[k2-2pk+p2]D4[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D344=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d301L D01[k2-2pk+p2]DL[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D301L=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d302L D02[k2-2pk+p2]DL[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D302L=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d32L D2[k2-2pk+p2]DL[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D32L=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d34L D4[k2-2pk+p2]DL[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D34L=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d3LL D01[k2-2pk+p2]DL[k2])]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y};*) (**) (*D3LL=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (* ::Input::Closed:: *) (* (*Tadpole diagram*)*) (* ::Input::Closed:: *) (* (*Diagram evaluation*)*) (* ::Input:: *) (*d401=ExpandAll[ExpandAll[ExpandAll[V4Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,q,\[Mu]2,\[Nu]2,-q,\[Rho],\[Sigma],-p,m1,n1,a1,b1,c1,d1,e1]]N01[\[Mu]1,\[Nu]1,\[Mu]2,\[Nu]2,q]]];*) (**) (*d402=ExpandAll[ExpandAll[ExpandAll[V4Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,q,\[Mu]2,\[Nu]2,-q,\[Rho],\[Sigma],-p,m1,n1,a1,b1,c1,d1,e1]]N02[\[Mu]1,\[Nu]1,\[Mu]2,\[Nu]2,q]]];*) (**) (*d42=ExpandAll[ExpandAll[ExpandAll[V4Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,q,\[Mu]2,\[Nu]2,-q,\[Rho],\[Sigma],-p,m1,n1,a1,b1,c1,d1,e1]]N2[\[Mu]1,\[Nu]1,\[Mu]2,\[Nu]2,q]]];*) (**) (*d44=ExpandAll[ExpandAll[ExpandAll[V4Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,q,\[Mu]2,\[Nu]2,-q,\[Rho],\[Sigma],-p,m1,n1,a1,b1,c1,d1,e1]]N4[\[Mu]1,\[Nu]1,\[Mu]2,\[Nu]2,q]]];*) (**) (*d4L=ExpandAll[ExpandAll[ExpandAll[V4Sym[\[Mu],\[Nu],p,\[Mu]1,\[Nu]1,q,\[Mu]2,\[Nu]2,-q,\[Rho],\[Sigma],-p,m1,n1,a1,b1,c1,d1,e1]]NL[\[Mu]1,\[Nu]1,\[Mu]2,\[Nu]2,q]]];*) (* ::Input::Closed:: *) (* (*UV expansion and divergent parts*)*) (* ::Input:: *) (*Expand[1/2 (d401 D01[q2])]/.{q2->q2/y^2,pq->pq/y,q[m_]->q[m]/y};*) (**) (*D401=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d402 D02[q2])]/.{q2->q2/y^2,pq->pq/y,q[m_]->q[m]/y};*) (**) (*D402=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d42 D2[q2])]/.{q2->q2/y^2,pq->pq/y,q[m_]->q[m]/y};*) (**) (*D42=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d44 D4[q2])]/.{q2->q2/y^2,pq->pq/y,q[m_]->q[m]/y};*) (**) (*D44=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (*Expand[1/2 (d4L DL[q2])]/.{q2->q2/y^2,pq->pq/y,q[m_]->q[m]/y};*) (**) (*D4L=Expand[Simplify[Coefficient[Normal[Series[%,{y,0,4}]],y,4]]];*) (**) (* ::Input::Closed:: *) (* (*Ghost loop*)*) (* ::Input::Closed:: *) (* (*Diagram evaluation and divergent part*)*) (* ::Input:: *) (*Expand[Expand[Vgh[\[Mu]1,\[Mu]2,-k,\[Mu],\[Nu],p,n1]]Expand[Ngh[\[Mu]1,\[Nu]2,p-k,a1]]Expand[Vgh[\[Nu]1,\[Nu]2,p-k,\[Rho],\[Sigma],-p,n2]]Expand[Ngh[\[Mu]2,\[Nu]1,k,a2]]];*) (**) (*ExpandAll[Expand[-(%/(k2^2 (p2+k2-2 pk)^2))]/.{k2->q2/y^2,pk->pq/y,k[m_]->q[m]/y}];*) (**) (*Expand[Simplify[%]];*) (**) (*ExpandAll[Coefficient[Normal[Series[%,{y,0,4}]],y,4]];*) (**) (*Dgh=Expand[Simplify[ExpandAll[%]]];*) (* ::Input::Closed:: *) (* (*Partial result*)*) (* ::Input::Closed:: *) (* (*In terms of tensors*)*) (* ::Input:: *) (*(*Sum of all the pieces and symmetric integration*)*) (*DivS=Expand[Simplify[Expand[D30101+2D30102+D30202+2D3012+2D3022+D322+2D3014+2D3024+2D324+D344+(D401+D402+D42+D44+D4L)+2D301L+2D302L+2D32L+2D34L+D3LL+Dgh]]];*) (*Expand[%/.{rp106}];*) (*Expand[%/.{rp84,rp85,rp86,rp87,rp88}];*) (*Expand[%/.{rp62,rp63,rp64,rp65,rp66}];*) (*Expand[%/.{rp40,rp41,rp42,rp43,rp44}];*) (*Expand[%/.{rp20,rp21,rp22}];*) (*ris=Expand[%/.{1/q2^2->2/((4 Pi)^2 \[Epsilon])}];*) (* ::Input::Closed:: *) (* (*In terms of spin-2 projectors*)*) (* ::Input:: *) (*Expand[ris/.{\[Eta][\[Mu],\[Rho]]\[Eta][\[Nu],\[Sigma]]->2 P1+2P2+2P0+2 PP0-\[Eta][\[Mu],\[Sigma]]\[Eta][\[Nu],\[Rho]]}];*) (*Expand[%/.{p[\[Mu]]p[\[Nu]]p[\[Rho]]p[\[Sigma]]->p2^2 PP0}];*) (*Expand[%/.{\[Eta][\[Mu],\[Nu]]\[Eta][\[Rho],\[Sigma]]->(3 P0+PP0+PPP0)}];*) (*Expand[%/.{\[Eta][\[Mu],\[Rho]]p[\[Nu]]p[\[Sigma]]->2p2 P1+4 p2 PP0-\[Eta][\[Mu],\[Sigma]]p[\[Rho]]p[\[Nu]]-\[Eta][\[Nu],\[Sigma]]p[\[Mu]]p[\[Rho]]-\[Eta][\[Nu],\[Rho]]p[\[Mu]]p[\[Sigma]]}];*) (*Expand[%/.{\[Eta][\[Mu],\[Nu]]p[\[Rho]]p[\[Sigma]]->p2 PPP0+2 p2 PP0-\[Eta][\[Rho],\[Sigma]]p[\[Mu]]p[\[Nu]]}];*) (*Ris=Simplify[Coefficient[%,P1]]P1+Simplify[Coefficient[%,P0]]P0+Simplify[Coefficient[%,P2]]P2+Simplify[Coefficient[%,PP0]]PP0+Simplify[Coefficient[%,PPP0]]PPP0;*) (**) (* ::Input::Closed:: *) (* (*Terms proportional to the equations of motion*)*) (* ::Input::Closed:: *) (* (*Parameters obtained from the file QGFieldRedefinitions.nb (.m)*)*) (* ::Input:: *) (*t1=(-Aa (9-8 \[Omega]+2 \[Omega]^2+\[Lambda] (12-9 \[Omega]+\[Omega]^2))+Bb (5 \[Lambda] (8-6 \[Omega]+\[Omega]^2)+3 (9-8 \[Omega]+2 \[Omega]^2)))/(24 Aa (Aa-3 Bb) \[Pi]^2 \[Epsilon] \[Lambda] (-2+\[Omega])^2);*) (*t2=(Aa (-21+20 \[Omega]-5 \[Omega]^2+2 \[Lambda] (12-9 \[Omega]+\[Omega]^2))+Bb (63-60 \[Omega]+15 \[Omega]^2-10 \[Lambda] (8-6 \[Omega]+\[Omega]^2)))/(192 Aa (Aa-3 Bb) \[Pi]^2 \[Epsilon] \[Lambda] (-2+\[Omega])^2);*) (*t3=(-2 Aa (3-4 \[Omega]+\[Omega]^2+\[Lambda] (37-24 \[Omega]+3 \[Omega]^2))+Bb (6 (3-4 \[Omega]+\[Omega]^2)+5 \[Lambda] (48-32 \[Omega]+5 \[Omega]^2)))/(192 Aa (Aa-3 Bb) \[Pi]^2 \[Epsilon] \[Lambda] (-2+\[Omega])^2);*) (*t4=(-5 Bb (48-32 \[Omega]+5 \[Omega]^2)+Aa (74-48 \[Omega]+6 \[Omega]^2))/(384 Aa (Aa-3 Bb) \[Pi]^2 \[Epsilon] (-2+\[Omega])^2);*) (*t5=(2 Aa (42-40 \[Omega]+10 \[Omega]^2+\[Lambda] (17-16 \[Omega]+7 \[Omega]^2))-Bb (12 (21-20 \[Omega]+5 \[Omega]^2)+5 \[Lambda] (16-16 \[Omega]+9 \[Omega]^2)))/(768 Aa (Aa-3 Bb) \[Pi]^2 \[Epsilon] \[Lambda] (-2+\[Omega])^2);*) (*t6=(-2 Aa (27-20 \[Omega]+5 \[Omega]^2)+5 Bb (32-24 \[Omega]+7 \[Omega]^2))/(1536 Aa (Aa-3 Bb) \[Pi]^2 \[Epsilon] (-2+\[Omega])^2);*) (* ::Input::Closed:: *) (* (*Field redefinitions and equations of motion*)*) (* ::Input:: *) (*(*Field redefinition linear in the graviton*)*) (*deltaG1[m_,n_,r_,s_,a_]:=Expand[(t1 f1[m,n]+t2 \[Eta][m,n]f1[a,a])/.{f1[x_,y_]:>1/2 (\[Eta][x,r]\[Eta][y,s]+\[Eta][x,s]\[Eta][y,r])}]*) (*(*Field redefinition quadratic in the graviton*)*) (*deltaG2[\[Mu]_,\[Nu]_,m_,n_,r_,s_,a_,b_]:=Expand[((t3)(f1[\[Mu],a]f2[a,\[Nu]])+t4(f1[a,a]f2[\[Mu],\[Nu]])+t5(\[Eta][\[Mu],\[Nu]]f1[a,b]f2[a,b])+(t6)\[Eta][\[Mu],\[Nu]]f1[a,a]f2[b,b])/.{f1[x_,y_]:>1/2 (\[Eta][x,m]\[Eta][y,n]+\[Eta][x,n]\[Eta][y,m]),f2[z_,u_]:>1/2 (\[Eta][z,r]\[Eta][u,s]+\[Eta][z,s]\[Eta][u,r])}]*) (*(*Linear equations of motions of the graviton*)*) (*EE1[m_,n_,r_,s_,p_,p2_,a_,b_]:=Expand[((-Aa p2+Cc)(Ric1[m,n,f1,p,a]-1/2 \[Eta][m,n]R1[f1,p,a,b])+Bb(-p2 \[Eta][m,n]R1[f1,p,a,b]+p[m]p[n]R1[f1,p,a,b])+ \[CapitalLambda](sqrtg1[f1,a]\[Eta][m,n]+ginv1[m,n,f1]))/.{f1[x_,y_]:>1/2 (\[Eta][x,r]\[Eta][y,s]+\[Eta][x,s]\[Eta][y,r])}]*) (*(*Trace of covariant equations of motion, quadratic in the graviton*)*) (*EEC[m_,n_,r_,s_,p_,p2_,a_,b_,c_]:=Expand[(-AA( Cc (sqrtg1[f1,a]R1[f2,-p,b,c]+sqrtg1[f2,a]R1[f1,p,b,c]+R2[f1,p,f2,-p,a,b,c]+R2[f2,-p,f1,p,a,b,c])-8\[CapitalLambda] sqrtg2[f1,f2,a,b]))/.{f1[x_,y_]:>1/2 (\[Eta][x,m]\[Eta][y,n]+\[Eta][x,n]\[Eta][y,m]),f2[z_,u_]:>1/2 (\[Eta][z,r]\[Eta][u,s]+\[Eta][z,s]\[Eta][u,r])}]*) (*(*Lagrangian terms*)*) (*Expand[EEC[\[Mu],\[Nu],\[Rho],\[Sigma],p,p2,a3,b3,c3]+deltaG1[m,n,\[Mu],\[Nu],a1]EE1[m,n,\[Rho],\[Sigma],p,p2,a2,b2]+deltaG1[m,n,\[Rho],\[Sigma],a1]EE1[m,n,\[Mu],\[Nu],p,p2,a2,b2]+\[CapitalLambda] \[Eta][m,n](deltaG2[m,n,\[Mu],\[Nu],\[Rho],\[Sigma],a4,b4]+deltaG2[m,n,\[Rho],\[Sigma],\[Mu],\[Nu],a4,b4])];*) (*Expand[%/.{\[Eta][\[Mu],\[Rho]]\[Eta][\[Nu],\[Sigma]]->2 P1+2P2+2P0+2 PP0-\[Eta][\[Mu],\[Sigma]]\[Eta][\[Nu],\[Rho]]}];*) (*Expand[%/.{p[\[Mu]]p[\[Nu]]p[\[Rho]]p[\[Sigma]]->p2^2 PP0}];*) (*Expand[%/.{\[Eta][\[Mu],\[Nu]]\[Eta][\[Rho],\[Sigma]]->(3 P0+PP0+PPP0)}];*) (*Expand[%/.{\[Eta][\[Mu],\[Rho]]p[\[Nu]]p[\[Sigma]]->2p2 P1+4 p2 PP0-\[Eta][\[Mu],\[Sigma]]p[\[Rho]]p[\[Nu]]-\[Eta][\[Nu],\[Sigma]]p[\[Mu]]p[\[Rho]]-\[Eta][\[Nu],\[Rho]]p[\[Mu]]p[\[Sigma]]}];*) (*Expand[%/.{\[Eta][\[Mu],\[Nu]]p[\[Rho]]p[\[Sigma]]->p2 PPP0+2 p2 PP0-\[Eta][\[Rho],\[Sigma]]p[\[Mu]]p[\[Nu]]}];*) (*EEN=Simplify[Coefficient[%,P1]]P1+Simplify[Coefficient[%,P0]]P0+Simplify[Coefficient[%,P2]]P2+Simplify[Coefficient[%,PP0]]PP0+Simplify[Coefficient[%,PPP0]]PPP0;*) (**) (**) (* ::Input::Closed:: *) (* (*Final result*)*) (* ::Input:: *) (*Tt=Expand[1/2 (Ris+EEN)];*) (* ::Input::Closed:: *) (*(*BETA FUNCTIONS*)*) (* ::Input::Closed:: *) (* (*Beta functions, program notation*)*) (* ::Input::Closed:: *) (*\[CapitalDelta]Aa=Simplify[Coefficient[-2(32 \[Pi]^2 \[Epsilon]) Tt/p2^2/.{Cc->0,\[CapitalLambda]->0},P2]]*) (**) (*\[CapitalDelta]Bb=Simplify[-6Coefficient[-(1/6)(32 \[Pi]^2 \[Epsilon])Tt/.{Cc->0,\[CapitalLambda]->0},p2^2P0]]*) (*\[CapitalDelta]Cc=Simplify[-2Cc(32 \[Pi]^2 \[Epsilon]) Coefficient[Tt,Cc,1]/(p2 (2P0-P2))]*) (*\[CapitalDelta]\[CapitalLambda]=Simplify[-2(32 \[Pi]^2 \[Epsilon])Cc^2 Coefficient[Tt,Cc,2]/(P0-2 P1-2 P2-PP0+PPP0)]+Simplify[2 \[CapitalLambda] (32 \[Pi]^2 \[Epsilon])Coefficient[Tt/(P0-2 P1-2 P2-PP0+PPP0),\[CapitalLambda],1]]*) (*(*To obtain the beta functions multiply by -1/(32\[Pi]^2) these results*)*) (* ::Input:: *) (*Simplify[Cc \[CapitalDelta]\[CapitalLambda]-2 \[CapitalLambda] \[CapitalDelta]\[Zeta]]*) (**) (* ::Input::Closed:: *) (* (*Beta functions, paper notation*)*) (* ::Input::Closed:: *) (*\[CapitalDelta]\[Alpha]=\[CapitalDelta]Aa*) (*\[CapitalDelta]\[Xi]=Expand[Simplify[\[CapitalDelta]Bb/.{Cc->\[Zeta],Aa->\[Alpha],Bb->-\[Eta],\[Omega]->2\[Omega]+2,\[CapitalLambda]->Subscript[\[CapitalLambda], C]}/.\[Eta]->(\[Xi]-\[Alpha])/3]]*) (*\[CapitalDelta]\[Zeta]=Expand[Simplify[\[CapitalDelta]Cc/.{Cc->\[Zeta],Aa->\[Alpha],Bb->-\[Eta],\[Omega]->2\[Omega]+2,\[CapitalLambda]->Subscript[\[CapitalLambda], C]}/.\[Eta]->(\[Xi]-\[Alpha])/3/.{AA->-((-AA-3/(2\[Alpha] \[Lambda])-1/(8\[Alpha] \[Lambda] \[Omega]^2)+3/(8\[Xi] \[Omega]^2)+3/(2\[Xi] \[Omega]))/(16\[Pi]^2\[Epsilon]))}]]*) (*Subscript[\[CapitalDelta]\[CapitalLambda], C]=Expand[Simplify[\[CapitalDelta]\[CapitalLambda]/.{Cc->\[Zeta],Aa->\[Alpha],Bb->-\[Eta],\[Omega]->2\[Omega]+2,\[CapitalLambda]->Subscript[\[CapitalLambda], C]}/.\[Eta]->(\[Xi]-\[Alpha])/3/.{AA->-((-AA-3/(2\[Alpha] \[Lambda])-1/(8\[Alpha] \[Lambda] \[Omega]^2)+3/(8\[Xi] \[Omega]^2)+3/(2\[Xi] \[Omega]))/(16\[Pi]^2\[Epsilon]))}]]*) (*(*To obtain the beta functions multiply by -2\[Kappa]^2/(4\[Pi])^2 these results*)*) (* ::Input:: *) (*(*Gauge independent quantities, i.e. independent on A*)*) (*Simplify[\[Zeta] Subscript[\[CapitalDelta]\[CapitalLambda], C]-2Subscript[\[CapitalLambda], C] \[CapitalDelta]\[Zeta]]*)