| 1 | (* ********************************************************* *)
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| 2 | (* ***** ***** *)
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| 3 | (* ***** FeynRules model file: SM + colored scalars ***** *)
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| 4 | (* ***** Author: B. Fuks ***** *)
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| 5 | (* ***** ***** *)
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| 6 | (* ********************************************************* *)
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| 7 |
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| 8 | (* ************************** *)
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| 9 | (* ***** Information ***** *)
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| 10 | (* ************************** *)
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| 11 | M$ModelName = "ColoredScalars";
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| 12 | M$Information = {
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| 13 | Authors -> {"Benjamin Fuks"},
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| 14 | Emails -> {"benjamin.fuks@iphc.cnrs.fr"},
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| 15 | Institutions -> {"IPHC Strasbourg / University of Strasbourg"},
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| 16 | Date -> "11.07.14",
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| 17 | Version -> "1.0",
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| 18 | References -> "C. Degrande, B. Fuks, V. Hirschi, J. Proudom and H.S. Shao, arXiv:1412.XXXX [hep-ph]"
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| 19 | };
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| 20 |
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| 21 | (* Change log *)
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| 22 | (* 11.07.2014 - v1.0 - version 1 of the model *)
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| 23 |
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| 24 |
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| 25 | (* ************************** *)
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| 26 | (* ***** Orders ***** *)
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| 27 | (* ************************** *)
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| 28 | M$InteractionOrderHierarchy = { {QCD, 1}, {QED, 2}, {NP,1} };
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| 29 | M$InteractionOrderLimit = { {QCD, 99}, {QED, 99}, {NP,1} };
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| 30 |
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| 31 | (* ************************** *)
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| 32 | (* ***** Fields ***** *)
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| 33 | (* ************************** *)
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| 34 | M$ClassesDescription = {
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| 35 | S[5] == {
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| 36 | ClassName -> sig3,
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| 37 | SelfConjugate -> False,
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| 38 | Indices -> {Index[Colour]},
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| 39 | Mass -> {m3,400},
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| 40 | Width -> {w3,10},
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| 41 | ParticleName -> "sig3",
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| 42 | AntiParticleName -> "sig3~",
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| 43 | PDG -> 9000002,
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| 44 | PropagatorLabel -> "sig3",
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| 45 | PropagatorType -> ScalarDash,
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| 46 | PropagatorArrow -> Forward,
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| 47 | QuantumNumbers -> {Q -> 2/3}
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| 48 | },
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| 49 |
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| 50 | F[16] == {
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| 51 | ClassName -> chi,
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| 52 | SelfConjugate -> True,
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| 53 | Mass -> {mchi,50},
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| 54 | Width -> 0,
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| 55 | ParticleName -> "chi",
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| 56 | PDG -> 1000022,
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| 57 | PropagatorLabel -> "chi",
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| 58 | PropagatorType -> Straight,
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| 59 | PropagatorArrow -> None
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| 60 | }
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| 61 | };
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| 62 |
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| 63 | (* ************************** *)
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| 64 | (* ***** Parameters ***** *)
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| 65 | (* ************************** *)
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| 66 | M$Parameters = {
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| 67 | gtL == {
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| 68 | TeX -> Superscript[OverTilde[g],L],
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| 69 | ParameterType -> External,
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| 70 | ComplexParameter -> False,
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| 71 | BlockName -> NP3GT,
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| 72 | Value -> 0.25,
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| 73 | InteractionOrder -> {NP,1},
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| 74 | Description -> "Left-handed neutralino-stop-top coupling"},
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| 75 | gtR == {
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| 76 | TeX -> Superscript[OverTilde[g],R],
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| 77 | ParameterType -> External,
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| 78 | ComplexParameter -> False,
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| 79 | BlockName -> NP3GT,
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| 80 | Value -> 0.06,
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| 81 | InteractionOrder -> {NP,1},
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| 82 | Description -> "Right-handed neutralino-stop-top coupling"}
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| 83 | };
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| 84 |
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| 85 | (* ************************** *)
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| 86 | (* ***** Lagrangian ***** *)
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| 87 | (* ************************** *)
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| 88 | L1 := DC[sig3bar[aa],mu] DC[sig3[aa],mu] - m3^2 sig3bar[aa] sig3[aa];
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| 89 |
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| 90 | L3:= i/2 chibar.Ga[mu].del[chi,mu] - 1/2 mchi chibar.chi +
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| 91 | sig3[cc] tbar[sp1,cc].chi[sp2] (gtL ProjM[sp1,sp2] + gtR ProjP[sp1,sp2]);
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| 92 |
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| 93 | LagNP := L1 + L3 + HC[L3];
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