We describe an extension of the FeynRules package dedicated to the automatic generation of the mass spectrum associated with any Lagrangian-based quantum field theory. After introducing a simplified way to implement particle mixings, we present a new class of FeynRules functions allowing both for the analytical computation of all the model mass matrices and for the generation of a C++ package, dubbed ASperGe. This program can then be further employed for a numerical evaluation of the rotation matrices necessary to diagonalize the field basis. We illustrate these features in the context of the Two-Higgs-Doublet Model, the Minimal Left-Right Symmetric Standard Model and the Minimal Supersymmetric Standard Model. © 2013 The Author(s).
CITATION STYLE
Alloul, A., D’Hondt, J., De Causmaecker, K., Fuks, B., & Rausch de Traubenberg, M. (2013). Automated mass spectrum generation for new physics. European Physical Journal C, 73(2), 1–11. https://doi.org/10.1140/epjc/s10052-013-2325-x
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