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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