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title: Supported matter sector
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permalink: /Supported_matter_sector/
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---
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# Supported matter sector
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[Category:Model](/Category:Model "wikilink") One can define up to 99 matter fields in a single model in SARAH. Each one of them can come with an arbitrary number of generations and can transform as any irreducible representation with respect to the defined gauge groups.
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One can define up to 99 matter fields in a single model in SARAH. Each one of them can come with an arbitrary number of generations and can transform as any irreducible representation with respect to the defined gauge groups.
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#### Supersymmetric models
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... | ... | @@ -23,7 +20,7 @@ In recent years models with Dirac gauginos have been largely explored. They feat |
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For non-supersymmetric models, SARAH supports all general, renormalisable Lagrangians of the form
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$L = m_{ij}^2 \\phi_i \\phi_j + \\frac{1}{3} \\kappa_{ijk} \\phi_i \\phi_j \\phi_k + \\frac{1}{4} \\lambda \\phi_i \\phi_j \\phi_k \\phi_l + M^F_{ij} \\psi_i \\psi_j + Y_{ijk} \\phi_i \\psi_i \\psi_j$
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$`L = m_{ij}^2 \phi_i \phi_j + \frac{1}{3} \kappa_{ijk} \phi_i \phi_j \phi_k + \frac{1}{4} \lambda \phi_i \phi_j \phi_k \phi_l + M^F_{ij} \psi_i \psi_j + Y_{ijk} \phi_i \psi_i \psi_j`$
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for scalars *ϕ*<sub>*i*</sub>, and Weyl fermions *ψ*<sub>*j*</sub>. The Lagrangian needs to be defined by the user in the model file. Note, that we have omitted a tadpole term, *t**ϕ*, for a gauge singlet, as it can always be absorbed in a shift of *ϕ*.
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