| 1 | (***************************************************************************************************************)
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| 2 | (****** FeynRules mod-file for Model Independent searches of top partners ******)
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| 3 | (****** X(5/3), T(2/3), B(-1/3) & Y(-4/3) with arbitrary couplings ******)
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| 4 | (****** ******)
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| 5 | (****** Authors: B. Fuks, L. Panizzi ******)
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| 6 | (****** Compatibility with the new SM.fr of FR 2.0 ******)
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| 7 | (***************************************************************************************************************)
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| 8 |
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| 9 | M$ModelName = "VLQ";
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| 10 |
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| 11 | M$Information = {
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| 12 | Authors -> {"L. Panizzi, B. Fuks"},
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| 13 | Version -> "4.0",
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| 14 | Date -> "20.08.2019"
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| 15 | };
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| 16 |
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| 17 | FeynmanGauge =False;
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| 18 |
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| 19 | M$InteractionOrderHierarchy = { {QCD, 1}, {QED, 2}, {VLQ,1}};
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| 20 | M$InteractionOrderLimit = { {QCD, 99}, {QED, 99}, {VLQ,99}};
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| 21 |
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| 22 |
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| 23 |
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| 24 | (* ************************** *)
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| 25 | (* ***** Parameters ***** *)
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| 26 | (* ************************** *)
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| 27 | M$Parameters = {
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| 28 | KTLw == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {{VLQ, 1}, {QED, -1}}, Description -> "TuW coupling (left-handed)",
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| 29 | BlockName -> KTLW, Value -> {KTLw[1] -> 0.120112, KTLw[2] -> 0.120112, KTLw[3] -> 0.160149} },
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| 30 | KTRw == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {{VLQ, 1}, {QED, -1}}, Description -> "TuW coupling (right-handed)",
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| 31 | BlockName -> KTRW, Value -> {KTRw[1] -> 0., KTRw[2] -> 0., KTRw[3] -> 0.} },
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| 32 | KTLz == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {{VLQ, 1}, {QED, -1}}, Description -> "TuZ coupling (left-handed)" ,
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| 33 | BlockName -> KTLZ, Value -> {KTLz[1] -> 0.180284, KTLz[2] -> 0.180284, KTLz[3] -> 0.240379} },
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| 34 | KTRz == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {{VLQ, 1}, {QED, -1}}, Description -> "TuZ coupling (right-handed)",
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| 35 | BlockName -> KTRZ, Value -> {KTRz[1] -> 0., KTRz[2] -> 0., KTRz[3] -> 0.} },
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| 36 | KTLh == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {VLQ, 1}, Description -> "TuH coupling (left-handed)" ,
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| 37 | BlockName -> KTLH, Value -> {KTLh[1] -> 0.479336, KTLh[2] -> 0.479336, KTLh[3] -> 0.639117} },
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| 38 | KTRh == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {VLQ, 1}, Description -> "TuH coupling (right-handed)",
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| 39 | BlockName -> KTRH, Value -> {KTRh[1] -> 0., KTRh[2] -> 0., KTRh[3] -> 0.} },
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| 40 |
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| 41 | KBLw == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {{VLQ, 1}, {QED, -1}}, Description -> "BuW coupling (left-handed)" ,
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| 42 | BlockName -> KBLW, Value -> {KBLw[1] -> 0.120112, KBLw[2] -> 0.120112, KBLw[3] -> 0.160149} },
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| 43 | KBRw == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {{VLQ, 1}, {QED, -1}}, Description -> "BuW coupling (right-handed)",
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| 44 | BlockName -> KBRW, Value -> {KBRw[1] -> 0., KBRw[2] -> 0., KBRw[3] -> 0.} },
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| 45 | KBLz == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {{VLQ, 1}, {QED, -1}}, Description -> "BuZ coupling (left-handed)" ,
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| 46 | BlockName -> KBLZ, Value -> {KBLz[1] -> 0.180284, KBLz[2] -> 0.180284, KBLz[3] -> 0.240379} },
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| 47 | KBRz == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {{VLQ, 1}, {QED, -1}}, Description -> "BuZ coupling (right-handed)",
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| 48 | BlockName -> KBRZ, Value -> {KBRz[1] -> 0., KBRz[2] -> 0., KBRz[3] -> 0.} },
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| 49 | KBLh == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {VLQ, 1}, Description -> "BuH coupling (left-handed)" ,
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| 50 | BlockName -> KBLH, Value -> {KBLh[1] -> 0.479336, KBLh[2] -> 0.479336, KBLh[3] -> 0.639117} },
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| 51 | KBRh == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {VLQ, 1}, Description -> "BuH coupling (right-handed)",
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| 52 | BlockName -> KBRH, Value -> {KBRh[1] -> 0., KBRh[2] -> 0., KBRh[3] -> 0.} },
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| 53 |
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| 54 | KXL == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {VLQ, 1}, Description -> "XuW coupling (left-handed)" ,
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| 55 | BlockName -> KXLW, Value -> {KXL[1] -> 0.300279, KXL[2] -> 0.300279, KXL[3] -> 0.400379} },
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| 56 | KXR == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {VLQ, 1}, Description -> "XuW coupling (right-handed)",
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| 57 | BlockName -> KXRW, Value -> {KXR[1] -> 0., KXR[2] -> 0., KXR[3] -> 0.} },
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| 58 |
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| 59 | KYL == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {VLQ, 1}, Description -> "YdW coupling (left-handed)" ,
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| 60 | BlockName -> KYLW, Value -> {KYL[1] -> 0.300279, KYL[2] -> 0.300279, KYL[3] -> 0.400379} },
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| 61 | KYR == { ParameterType -> External, ComplexParameter -> False, Indices->{Index[Generation]}, InteractionOrder -> {VLQ, 1}, Description -> "YdW coupling (right-handed)",
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| 62 | BlockName -> KYRW, Value -> {KYR[1] -> 0., KYR[2] -> 0., KYR[3] -> 0.} }
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| 63 | };
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| 64 |
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| 65 |
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| 66 |
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| 67 | (* ************************** *)
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| 68 | (* ***** Fields ***** *)
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| 69 | (* ************************** *)
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| 70 |
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| 71 | M$ClassesDescription = {
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| 72 | (* VLQ Quarks X, Q=5/3*)
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| 73 | F[5] == { ClassName -> x, SelfConjugate -> False, Indices -> {Index[Colour]}, Mass -> {MX,600}, Width -> {WX, 5.}, QuantumNumbers -> {Q -> 5/3},
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| 74 | PropagatorLabel -> "x", PropagatorType -> Straight, PropagatorArrow -> Forward, PDG -> 6000005, FullName -> "X-quark"},
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| 75 |
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| 76 | (* VLQ Quarks T, Q=2/3 *)
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| 77 | F[6] == { ClassName -> tp, SelfConjugate -> False, Indices -> {Index[Colour]}, Mass -> {MTP,600}, Width -> {WTP,5.}, QuantumNumbers -> {Q -> 2/3},
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| 78 | PropagatorLabel -> "tp", PropagatorType -> Straight, PropagatorArrow -> Forward, PDG -> 6000006, FullName -> "T-quark"},
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| 79 |
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| 80 | (* VLQ Quarks B, Q=-1/3 *)
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| 81 | F[7] == { ClassName -> bp, SelfConjugate -> False, Indices -> {Index[Colour]}, Mass -> {MBP,600}, Width -> {WBP, 5.}, QuantumNumbers -> {Q -> -1/3},
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| 82 | PropagatorLabel -> "bp", PropagatorType -> Straight, PropagatorArrow -> Forward, PDG -> 6000007, FullName -> "B-quark"},
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| 83 |
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| 84 | (* VLQ Quarks Y, Q=-4/3 *)
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| 85 | F[8] == { ClassName -> y, SelfConjugate -> False, Indices -> {Index[Colour]}, Mass -> {MY,600}, Width -> {WY, 5.}, QuantumNumbers -> {Q -> -4/3},
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| 86 | PropagatorLabel -> "y", PropagatorType -> Straight, PropagatorArrow -> Forward, PDG -> 6000008, FullName -> "Y-quark"}
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| 87 | };
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| 88 |
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| 89 |
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| 90 | (* ************************** *)
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| 91 | (* ***** Lagrangian ***** *)
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| 92 | (* ************************** *)
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| 93 |
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| 94 | (* Kinetic and mass terms *)
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| 95 | LTK := I tpbar.Ga[mu].DC[tp, mu] - MTP tpbar.tp + 2*ee/3 A[mu] tpbar.Ga[mu].tp;
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| 96 | LBK := I bpbar.Ga[mu].DC[bp, mu] - MBP bpbar.bp - ee/3 A[mu] bpbar.Ga[mu].bp;
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| 97 | LXK := I xbar.Ga[mu].DC[x, mu] - MX xbar.x + 5*ee/3 A[mu] xbar.Ga[mu].x;
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| 98 | LYK := I ybar.Ga[mu].DC[y, mu] - MY ybar.y - 4*ee/3 A[mu] ybar.Ga[mu].y;
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| 99 |
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| 100 | (* T interactions *)
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| 101 | LTW := gw/Sqrt[2] W[mu] Ga[mu,sp1,sp2] tpbar[sp1,cc].dq[sp3,ff,cc] (ProjM[sp2,sp3] KTLw[ff] + ProjP[sp2,sp3] KTRw[ff]);
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| 102 | LTZ := gw/(2 cw) Z[mu] Ga[mu,sp1,sp2] tpbar[sp1,cc].uq[sp3,ff,cc] (ProjM[sp2,sp3] KTLz[ff] + ProjP[sp2,sp3] KTRz[ff]);
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| 103 | LTH := H tpbar[sp1,cc].uq[sp3,ff,cc] (ProjM[sp1,sp3] KTLh[ff] + ProjP[sp1,sp3] KTRh[ff]);
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| 104 |
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| 105 |
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| 106 | (* B interactions *)
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| 107 | LBW := gw/Sqrt[2] Wbar[mu] Ga[mu,sp1,sp2] bpbar[sp1,cc].uq[sp3,ff,cc] (ProjM[sp2,sp3] KBLw[ff] + ProjP[sp2,sp3] KBRw[ff]);
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| 108 | LBZ := gw/(2 cw) Z[mu] Ga[mu,sp1,sp2] bpbar[sp1,cc].dq[sp3,ff,cc] (ProjM[sp2,sp3] KBLz[ff] + ProjP[sp2,sp3] KBRz[ff]);
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| 109 | LBH := H bpbar[sp1,cc].dq[sp3,ff,cc] (ProjM[sp1,sp3] KBLh[ff] + ProjP[sp1,sp3] KBRh[ff]);
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| 110 |
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| 111 | (* X interactions *)
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| 112 | LXW := gw/Sqrt[2] W[mu] Ga[mu,sp1,sp2] xbar[sp1,cc].uq[sp3,ff,cc] (ProjM[sp2,sp3] KXL[ff] + ProjP[sp2,sp3] KXR[ff]);
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| 113 |
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| 114 | (* Y interactions *)
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| 115 | LYW := gw/Sqrt[2] Wbar[mu] Ga[mu,sp1,sp2] ybar[sp1,cc].dq[sp3,ff,cc] (ProjM[sp2,sp3] KYL[ff] + ProjP[sp2,sp3] KYR[ff]);
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| 116 |
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| 117 | LVLQ := LTW + LTZ + LTH + LBW + LBZ + LBH + LXW + LYW + HC[LTW + LTZ + LTH + LBW + LBZ + LBH + LXW + LYW] + LTK + LBK + LXK + LYK + LSM ;
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