Version 4 (modified by 6 years ago) ( diff ) | ,
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Vector-leptoquark model
Authors
- Michael J. Baker
- UZH, Zurich
- baker@…
- Javier Fuentes-Martín
- UZH, Zurich
- fuentes@…
- Gino Isidori
- UZH, Zurich
- isidori@…
- Matthias König
- UZH, Zurich
- koenigma@…
Description of the model
This model is an extension of the SM, featuring a vector leptoquark (U1~(3,2)2/3), a colored vector (G'~(8,1)0), and a Z' (Z'~(1,1)0) as new heavy mediators.
The implementation of the model is based on "High-pT Signatures in Vector-Leptoquark Models" (arXiv:1901.10480). If you use our model file please cite this reference.
Model Files
vector_LQ.fr: This is the Feynrules model file for the vector leptoquark.
coloron.fr: This is the Feynrules model file for the vector color-octect.
Zprime.fr: This is the Feynrules model file for the Z' .
Model Restrictions
Massless.rst: This restriction file set all the masses and Yukawas to zero, except for the ones of the top quark.
Instructions
The model is loaded by merging the model files SM.fr
, vector_LQ.fr
, coloron.fr
and Zprime.fr
. Alternatively, one exclude the model files coloron.fr
or Zprime.fr
, if the user is not interested in these mediators.
The implementation allows for the use of the Feynman gauge in the SM.The switch between the two gauge is achieved via FeynmanGauge = True/False
(see StandardModel).
Examples
model_gen.nb: This is an example Mathematica® notebook that loads the Feynrules model files and calculates UFO model.
widths.nb: This is an example Mathematica® notebook that loads the Feynrules model files and calculates the Feynman rules and widths of the new vectors.
Interfaces
This model implementation is known to work with the following interfaces:
Validation
An alternative Feynrules implementation for the vector leptoquark model (but with interactions to left-handed SM fermions only) is available in https://lqnlo.hepforge.org. We have cross-checked our leptoquark implementation (with β33 = 0) against this one, finding a perfect agreement between the two.
UFO model
vector_LQ_UFO.tar.gz: UFO model including the U1, G' and Z' .
Attachments (9)
- Massless.rst (844 bytes ) - added by 6 years ago.
- widths.nb (157.8 KB ) - added by 6 years ago.
- model_gen.nb (198.1 KB ) - added by 2 years ago.
-
coloron.fr
(6.8 KB
) - added by 2 years ago.
Changed PDG code for coloron
-
Zprime.fr
(8.5 KB
) - added by 2 years ago.
Changed PDG code for Z'
-
vector_LQ.fr
(7.1 KB
) - added by 2 years ago.
Changed PDG code for vector LQ
-
VLferm.fr
(13.2 KB
) - added by 2 years ago.
Changed PDG code for vector-like fermions
-
vector_LQ_UFO.zip
(28.4 KB
) - added by 2 years ago.
Changed PDG code for new particles
-
vector_LQ_UFO.tar
(25.0 KB
) - added by 2 years ago.
Changed PDG code for new paricles
Download all attachments as: .zip