wiki:DMsimp

Version 52 (modified by mawatari, 2 years ago) (diff)

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Simplified dark matter models

Authors

  • s-channel
    • Antony Martini (Université catholique de Louvain) & Kentarou Mawatari (Vrije Universiteit Brussel)
      • Emails: kentarou.mawatari @ vub.ac.be
  • s-channel (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. See more details in

  • 1508.00564 : O. Mattelaer, E. Vryonidou, "Dark matter production through loop-induced processes at the LHC: the s-channel mediator case".
  • 1508.05327 : M. Backovic, M. Kramer, F. Maltoni, A. Martini, K. Mawatari, M. Pellen, "Higher-order QCD predictions for dark matter production at the LHC in simplified models with s-channel mediators".
  • 1509.05785 : M. Neubert, J. Wang, C. Zhang, "Higher-order QCD predictions for dark matter production in mono-Z searches at the LHC".

Model files

  • FR files (for spin-1)
  • FR files (for spin-0)

(The old alpha version is available here.)

Version updates

*2015.08.24 - v1.0: release version.

Sample commands for MadGraph5_aMC@NLO

NLO process samples for s-channel spin-1 mediators

  • Associated production with jets
import model DMsimp_s_spin1
generate p p > xd xd~ j [QCD]
add process p p > xd xd~ j j [QCD]
  • Associated production with a Higgs
import model DMsimp_s_spin1
generate p p > xd xd~ h [QCD] 

NLO process samples for s-channel spin-0 mediators

  • Associated production with a top-quark pair
import model DMsimp_s_spin0
generate p p > xd xd~ t t~ / a z w+ w- [QCD] 
  • Associated production with a photon/Z/W
import model DMsimp_s_spin0
generate p p > xd xd~ a [QCD]
generate p p > xd xd~ z [QCD]
generate p p > xd xd~ w+ [QCD]
generate p p > xd xd~ w- [QCD] 

LO loop-induced process samples for s-channel mediators

  • mono-jet
import model DMsimp_s_spin0
generate p p > xd xd~ j [QCD]
  • mono-Z
import model DMsimp_s_spin0
generate p p > xd xd~ z / a z [QCD]
  • mono-photon (will be 0 for all couplings)
import model DMsimp_s_spin0
generate p p > xd xd~ a / a z [QCD]
  • mono-Higgs
import model DMsimp_s_spin0
generate p p > xd xd~ h / h [QCD]

Model files for tools for DM relic abundance and DM (in)direct detections

(The model keeps all the quark masses finite, and apply only to tree-level processes. In the CH format, we have only Xd without the EW part.)

Attachments