== Monotop effective theory ==
=== Author ===

[http://www.cern.ch/fuks Benjamin Fuks]
   * IPHC Strasbourg / University of Strasbourg 
   * fuks@cern.ch


=== Description of the model ===

This model is an extension of the SM, including additional interactions with additional fields so that monotop signatures at colliders are made possible. It follows the model constructed in the paper
  [http://arxiv.org/abs/1106.6199 arXiv:1106.6199]: J. Andrea, B. Fuks and F. Maltoni, ''Monotops at the LHC.''


=== Model files ===
   * [/attachment/wiki/Monotops/monotops.fr monotops.fr]: the main model file. 
   * This model requires the [wiki:StandardModel Standard Model implementation] of !FeynRules. 
   * [/attachment/wiki/Monotops/MonoTops.nb MonoTops.nb]: this is an example Mathematica notebook that loads the model, calculates the Feynman rules and extract the model files within the UFO format.

== Matrix element generator files ==
Several coupling strength are set by hand to zero. We refer to [http://arxiv.org/abs/1106.6199 arXiv:1106.6199] for more informatiom. '''Please note that due to unusual color structures appearing in this model, it only works with the limited set of matrix element generators shown below'''.
||[/attachment/wiki/Monotops/monotops_FA.tgz monotops_FA.tgz]||The model files for !FeynArts.||
||[/attachment/wiki/Monotops/monotops_UFO.tgz monotops_UFO.tgz]||The model files in UFO format (e.g. for !MadGraph 5).||


== LHC events and cross sections ==
The five benchmark scenarios are described in [http://arxiv.org/abs/1106.6199 arXiv:1106.6199]. For event generation, we use the following cuts, with jet being any (parton-level) light or b jet:
  * deltaR(jet,jet) > 0.5
  * eta(jet) < 2.5
  * pt(jet) > 50 GeV
and consider hadronic monotop final state (three jets plus missing energy) at the LHC for a center-of-mass energy of 7 TeV. The corresponding cross section is given in the third column. In the fourth column, we provide total cross sections without including cuts and top decays.

|| '''Signal samples'''  || '''Download''' || '''Cross section (including top decay and cuts) [pb] ''' || '''Cross section (no top decay, no cut) [pb] ''' ||
|| Scenario 1: 50.000 events || [/attachment/wiki/Monotops/S1LHC.lhe.tgz S1LHC.lhe.tgz] || 0.362 || 5.521 ||
|| Scenario 2: 50.000 events || [/attachment/wiki/Monotops/S2LHC.lhe.tgz S2LHC.lhe.tgz] || 0.616 || ??? ||
|| Scenario 3: 50.000 events || [/attachment/wiki/Monotops/S3LHC.lhe.tgz S3LHC.lhe.tgz] || 0.043 || ??? ||
|| Scenario 4: 50.000 events || [/attachment/wiki/Monotops/S4LHC.lhe.tgz S4LHC.lhe.tgz] || 3.854 || ??? ||
|| Scenario 5: 50.000 events || [/attachment/wiki/Monotops/S5LHC.lhe.tgz S5LHC.lhe.tgz] || 1.031e-06 || ??? || 

== Tevatron events and cross sections ==
The five benchmark scenarios are described in [http://arxiv.org/abs/1106.6199 arXiv:1106.6199].  For event generation, we use the following cuts, with jet being any (parton-level) light or b jet:
  * deltaR(jet,jet) > 0.5
  * eta(jet) < 2.5
  * pt(jet) > 30 GeV
and consider hadronic monotop final state (three jets plus missing energy) at the Tevatron for a center-of-mass energy of 1.96 TeV.  The corresponding cross section is given in the third column. In the fourth column, we provide total cross sections without including cuts and top decays.

|| '''Signal samples'''  || '''Download''' || '''Cross section (including top decay and cuts) [pb] ''' || '''Cross section (no top decay, no cut) [pb] ''' || 
|| Scenario 1: 50.000 events || [/attachment/wiki/Monotops/S1TeV.lhe.tgz S1TeV.lhe.tgz] || 0.021 || 0.082 || 
|| Scenario 2: 50.000 events || [/attachment/wiki/Monotops/S2TeV.lhe.tgz S2TeV.lhe.tgz] || 0.233 || ??? || 
|| Scenario 3: 50.000 events || [/attachment/wiki/Monotops/S3TeV.lhe.tgz S3TeV.lhe.tgz] || 0.002 || ??? || 
|| Scenario 4: 50.000 events || [/attachment/wiki/Monotops/S4TeV.lhe.tgz S4TeV.lhe.tgz] || 1.370 || ??? || 
|| Scenario 5: 50.000 events || [/attachment/wiki/Monotops/S5TeV.lhe.tgz S5TeV.lhe.tgz] || 1.704e-08   || ??? ||