Changes between Version 3 and Version 4 of TopHeavyRes


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Timestamp:
Apr 14, 2022, 2:46:04 PM (3 years ago)
Author:
LucDarme
Comment:

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  • TopHeavyRes

    v3 v4  
    99    VectorOctet_UFO : Contains the interactions and particles corresponding to a vector, octet of color, top-philic particle.
    1010
    11 The definition of the coupling and particles follows closely the Lagrangians written in Ref. [1]. They contain both a scalar and pseudo-scalar interactions with the top quarks for the scalar singlet and scalar octet, and a left-handed and right-handed coupling for the vector singlet and vector octet cases. Each coupling carries a NP order to allow for the classification of the diagrams produced in Madgraph. An important catch that they are defined having in mind the possibility of a complex coupling, and therefore with a hermitian conjugate. As a consequence, when comparing with the Lagrangian from [1] for the scalar particles, one has y_S = 2 (y_L + y_R) and y_P = 2 (y_R - y_L).
     11The definition of the coupling and particles follows closely the Lagrangians written in Ref. [1]. They contain both a scalar and pseudo-scalar interactions with the top quarks for the scalar singlet and scalar octet, and a left-handed and right-handed coupling for the vector singlet and vector octet cases. Each coupling carries a NP order to allow for the classification of the diagrams produced in Madgraph. An important catch that they are defined having in mind the possibility of a complex coupling, and therefore with a hermitian conjugate. As a consequence, when comparing with the Lagrangian from [1] for the scalar particles, one has y_S = (y_L + y_R) and y_P = (y_R - y_L).
    1212
    1313The four-top final states in these models must be obtained directly as the final states in the Madgraph generation process, in order to ensure that the interference contribution with the SM processes are correctly included. These models were defined for the python2 versions of Madgraph, they are compatible with the latest versions although you may need to run "set auto_convert_model T" to convert them on-the-fly (or run "convert model <Model with full path>" in the MG command line)