Simplified dark matter models

Authors

• s-channel
  • Antony Martini (Université catholique de Louvain) & Kentarou Mawatari (Vrije Universiteit Brussel)
    • Emails: kentarou.mawatari @ vub.ac.be
• electroweak
  • Jian Wang (Johnnas Gutenberg University of Mainz) & Cen Zhang (Brookhaven National Laboratory)
    • Emails: cenzhang @ bnl.gov

Description of the model

This is simplified dark matter models for NLO. Our lagrangian consists of different types of DM:

• Xr (real scalar DM)
• Xc (complex scalar DM)
• Xd (Dirac spinor DM)
• Xm (Majorana spinor DM) (to be done.)
• ...

and different types of mediators:

• s-channel
  • Y0 (spin-0)
  • Y1 (spin-1)
  • Y2 (spin-2) (to be done.)
  • ...

• t-channel (to be done.)

One can find the model lagrangian in the note.

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Beta version

Model files

• TBD : the s-channel model files in UFO format
• TO BE DONE: include the s-channel+EW model files in UFO format

NLO QCD process samples for s-channel mediators

Remember that "scalar" below means scalar/pseudoscalar and "vector" means vector/axial-vector.

• NLO vector mediator + jets
  

import model DMsimp_s_spin1
generate p p > xd xd~ j [QCD]
generate p p > xd xd~ j j [QCD]

• NLO ttbar associated production with a scalar mediator coupling only to tops
  

import model DMsimp_s_spin0
generate p p > xd xd~ t t~ [QCD] 

NLO EW process samples for s-channel mediators

Remember that "scalar" below means scalar/pseudoscalar and "vector" means vector/axial-vector.

• NLO scalar mediator + a,z,w+
  

DMsimp_ew_scalar_5f_UFO 
generate p p > xd xd~ z [QCD]
generate p p > xd xd~ a [QCD]
generate p p > xd xd~ w+ [QCD] 

• NLO vector mediator + h
  

For DMsimp_ew_vector_5f_UFO 
import model DMsimp_s_spin0
generate p p > xd xd~ h [QCD] 

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Alpha version

​https://feynrules.irmp.ucl.ac.be/wiki/DMsimp_alpha

Version updates

*2015.08.20 - v0.1_beta: beta version.