Version 2 (modified by 3 years ago) ( diff ) | ,
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Effective model for modifications to Higgs Yukawa couplings
Authors
- Natascia Vignaroli
- University of Naples and INFN Naples
- natascia.vignaroli@…
Description of the model
This model is an extension of the SM, including dim-6 effective operators which generate modification to the Higgs Yukawa couplings to quarks, as described in Ref [1] :
$\mathcal{L} = -y^{NP}_d \frac{ |H|^2}{vev^2}\, \bar{Q}_L d_R H - y_u^{NP} \frac{|H|^2}{vev^2}\, \bar{u}_R Q_L H + h.c.$
where vev=246 GeV and yuNP, ydNP are matrices in the flavor space. By default, they are set to the diagonal values yuNP =diag(YukU, YukC, YukT), ydNP =diag(YukD, YukS, YukB), where Yuk* are adjustable external parameters.
Model files
- YqHEFT.fr: the main model file.
- DiagonalCKM.rst: diagonal CKM restriction.
- YqHEFT_UFO.zip: The model files in UFO format (for MadGraph 5).
Notes:
- By default yuNP =(0,0,1) , ydNP=(0,0,0).
References
[1] A. Falkowski, S. Ganguly, P. Gras, J. M. No, K. Tobioka, N. Vignaroli and T. You, Light quark Yukawas in triboson final states, JHEP 04, 023 (2021), arXiv:2011.09551 [hep-ph].
Attachments (4)
- DiagonalCKM.rst (523 bytes ) - added by 3 years ago.
- YqHEFT.2.fr (26.8 KB ) - added by 3 years ago.
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YqHEFT.fr
(26.8 KB
) - added by 3 years ago.
YqHEFT.fr
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YqHEFT_UFO.zip
(27.5 KB
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YqHEFT_UFO.zip
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