Dark Matter Gauge invariant simplified model with CP-even Spin-0 s-channel mediator
Authors
Giorgio Busoni (University of Melbourne) email: giorgio.busoni@…
Description of the model
This is a gauge-invariant simplified model for dark matter with a CP-even spin-0 mediator exchanged in the s-channel. Dark matter is taken to be a Dirac Fermion.
For more details:
- 1612.03475: Nicole F. Bell, Giorgio Busoni, Isaac W. Sanderson, "Self-consistent Dark Matter Simplified Models with an s-channel scalar mediator"
- 1710.10764: Nicole F. Bell, Giorgio Busoni, Isaac W. Sanderson, "Two Higgs Doublet Dark Matter Portal"
Model files
- S2HDM.fr: main model file for spin-0 mediators.
- Massless_4f.rst restriction file for 4F scheme.
- Massless_5f.rst: restriction file for 5F scheme.
- S2HDM.nb: this is an example Mathematica notebook that loads the model, checks consistency, calculates the Feynman rules and outputs the model in various formats.
- unitarity.m: additional mathematica file loaded by the mathematica notebook, that checks unitarity, perturbativity and stability of potential
- SM_CKM.fr: SM implementation with full CKM matrix, to output UFO with flavour-changing processes
Download
- Full package
- UFO Type I (4FS)
- UFO Type II (4FS)
- UFO Aligned (4FS)
- UFO Type I (5FS)
- UFO Type II (5FS)
- UFO Aligned (5FS)
- CALCHEP Aligned
Version updates
v1.0 release version
Sample commands for MadGraph5_aMC@NLO
The UFO provided together with the feynrules model file was generated for four flavour scheme (4FS) calculations. To perform 5FS ones, you need to generate a new UFO by loading massless_5f restriction file instead of massless_4f.
Below we give the MadGraph syntax used to generate various mono-X signals
MONO-JET
generate p p > j ~xd ~xd~ [QCD]
Massive top and bottom quarks. 4FS calculation. This is LO as there are no tree level diagrams in this scheme.
MONO-H
generate p p > h ~xd ~xd~ [QCD]
Same notes as above.
MONO-Z
generate p p > z ~xd ~xd~ [QCD]
Same notes as above.
MONO-W
WARNING: needs 5FS UFO!
generate p p > w+ ~xd ~xd~ [QCD]
This has not been tested. This is LO as there are no tree level diagrams in this scheme.
TT+MET (tree level)
generate p p > t t~ ~xd ~xd~
Massive top and bottom quarks. 4FS calculation.
BB+MET (tree level)
generate p p > b b~ ~xd ~xd~
Massive top and bottom quarks. 4FS calculation.
TT+MET (NLO)
Not working yet. However you can generate
generate p p > t t~ S1 [QCD] generate p p > t t~ S2 [QCD]
Massive top and bottom quarks. 4FS calculation. This is NLO accurate result including both top and bottom loops.
BB+MET (NLO)
same as above.
DI-JET+MET
WARNING: to make 5FS you need to output a new UFO with the right restrictions
generate p p > j j ~xd ~xd~ [QCD]
Massive top and bottom quarks. 4FS calculation. This is LO as there are no tree level diagrams in this scheme.
To use 5FS, you need to generate a new UFO output by loading massless_5f restriction file instead of massless_4f.
Attachments (14)
-
Massless_5f.rst
(803 bytes
) - added by 7 years ago.
Restirction file for 5F scheme
-
Massless_4f.rst
(697 bytes
) - added by 7 years ago.
Restirction file for 4F scheme
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SM_CKM.fr
(26.6 KB
) - added by 7 years ago.
SM file with all non-zero CKM matrix elements
-
unitarity.m
(12.8 KB
) - added by 7 years ago.
Additional mathematica library
-
S2HDM.fr
(19.1 KB
) - added by 7 years ago.
FR model file
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S2HDM_Align_CH.zip
(13.8 KB
) - added by 7 years ago.
calcHep Output
-
S2HDM.nb
(1.2 MB
) - added by 7 years ago.
Mathematica notebook
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S2HDM_4FS_Align_NLO.zip
(40.4 KB
) - added by 7 years ago.
UFO 4FS NLO Aligned
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S2HDM_4FS_TI_NLO.zip
(40.2 KB
) - added by 7 years ago.
UFO 4FS NLO Type I
-
S2HDM_4FS_TII_NLO.zip
(40.4 KB
) - added by 7 years ago.
UFO 4FS NLO Type II
-
S2HDM_Align_NLO.zip
(37.6 KB
) - added by 7 years ago.
UFO 5FS NLO Aligned
-
S2HDM_TI_NLO.zip
(37.4 KB
) - added by 7 years ago.
UFO 5FS NLO Type I
-
S2HDM_TII_NLO.zip
(37.5 KB
) - added by 7 years ago.
UFO 5FS NLO Type II
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S2HDM.zip
(572.1 KB
) - added by 7 years ago.
FR Model + UFO + CalcHEP