1 | | ... |
| 1 | == Effective model for modifications to Higgs Yukawa couplings == |
| 2 | |
| 3 | === Authors === |
| 4 | |
| 5 | * Natascia Vignaroli |
| 6 | * University of Naples and INFN Naples |
| 7 | * natascia.vignaroli@na.infn.it |
| 8 | |
| 9 | === Description of the model === |
| 10 | |
| 11 | This model is an extension of the SM, including dim-6 effective operators which generate modification to the Higgs Yukawa couplings to quarks, as |
| 12 | described in Ref [#point1 [1]] : |
| 13 | |
| 14 | {{{ |
| 15 | #!latex |
| 16 | $\mathcal{L} = -y^{NP}_d \frac{ |H|^2}{vev^2}\, \bar{Q}_L d_R H - |
| 17 | y_u^{NP} \frac{|H|^2}{vev^2}\, \bar{u}_R Q_L H + h.c.$ |
| 18 | }}} |
| 19 | |
| 20 | where vev=246 GeV and y,,u,,NP, y,,d,,NP |
| 21 | are matrices in the flavor space. By default, they are set to the diagonal values y,,u,,NP =diag(YukU, YukC, YukT), y,,d,,NP =diag(YukD, YukS, YukB), where Yuk* are adjustable external parameters. |
| 22 | |
| 23 | === Model files === |
| 24 | |
| 25 | * [/raw-attachment/wiki/YqHEFT/YqHEFT.fr YqHEFT.fr]: the main model file. |
| 26 | * [/raw-attachment/wiki/YqHEFT/DiagonalCKM.rst DiagonalCKM.rst]: diagonal CKM restriction. |
| 27 | * [/raw-attachment/wiki/YqHEFT/YqHEFT_UFO.zip YqHEFT_UFO.zip]: The model files in UFO format (for !MadGraph 5). |
| 28 | |
| 29 | Notes: |
| 30 | * By default y,,u,,NP =(0,0,1) , y,,d,,NP=(0,0,0). |
| 31 | |
| 32 | |
| 33 | === References === |
| 34 | |
| 35 | [=#point1] [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]. |
| 36 | |