Changes between Version 5 and Version 6 of ChernSimonsPortal
 Timestamp:
 07/09/19 13:31:06 (15 months ago)
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ChernSimonsPortal
v5 v6 1 == Model description1 == Model description 2 2 3 3 The ChernSimons portal adds a new vector particle with zero electric charge, the X boson, interacting with the Standard Model gauge bosons  W, Z, [[latex( $\gamma$ )]] via pseudo ChernSimons current. The low energy effective interaction has the form … … 9 9 [[latex( $\mathcal{O}_{R} = \!\left( \bar{t}_R \gamma^\mu t_R \right) \!\left( \bar{t}_R \gamma_\mu t_R \right)$ )]] 10 10 11 == Implementation description==11 == Implementation description 12 12 13 13 The model has been implemented using merging of SM.fr and ChernSimons.fr files. The implementation introduces one real new vector particle  X boson with the name xb. The implementation contains 6 new parameters: the coupling to W bosons cW (default value: 0.001), the coupling to Z bosons cZ (default value: 0.001), the coupling to the Z boson and photon cZgamma (default value: 0.001), the nonminimal coupling to muons Cmu (default value: 0.1), the X boson mass Mxb (default value: 1 in units of GeV), the X boson width Wxb (default value: 1 in units of GeV). The implementation is performed in the unitary gauge. The implementation format is the UFO format. 14 14 15 ==Using description== 15 == How to use the model in MadGraph 16 16 17 To use the model, unpack the .zip archive and move the resulting folder ChernSimons_UFO to the directory /models of your MadGraph directory. 17 18 18 ==Files== 19 *Model files: 19 == Files 20 === Model files 21 * ChernSimons.fr : this is the main file. 22 * ChernSimons.nb : this is an example Mathematica notebook that loads the model, calculates Feynman rules and makes the UFO implementation. Note that it requires the implementation of the model file of the SM implementation of FeynRules. 23 === Implementation 24 *ChernSimons_UFO.zip 20 25 21 == List of studies used this implementation==26 == List of studies used this implementation 22 27 * [https://arxiv.org/abs/1903.11918 Probing new physics with displaced vertices: muon tracker at CMS] 23 28 24 ==References== 29 == References 30 31 Please cite [1] for the model file 32 33 * K. Bondarenko, A. Boyarsky, M. Ovchynnikov, O. Ruchayskiy, L. Shchutska. ''Probing new physics with displaced vertices: muon tracker at CMS''. [https://arxiv.org/abs/1903.11918 hepph/1903.11918] 25 34 26 35 [[latex( $$\gamma^\mu \delta^{\mu} f^{\rho} g^{\delta} = \!\left( \right) $$ )]]