Single Top plus dark matter at LHC

People: Genevieve Belanger, Jose No, Priscilla Pani, Giacomo Polesello, Bryan Zaldivar, Fabio Maltoni

Email: belanger@lapth.cnrs.fr, jose_miguel.no@kcl.ac.uk, priscilla.pani@cern.ch, giacomo.polesello@cern.ch, fuks@lpthe.jussieu.fr, zaldivar@lapth.cnrs.fr, fabio.maltoni@uclouvain.be

• Understand the power of single top/Wt signatures in the context of Dm simplified models and 2HDM

• Model currently in use is the 2HDM + pseudoscalar from Ref []
• Additional posible models: singlet (available), double singlet (not available)

1) H+t on shell

• check xsec*BR for H+top (Giacomo)
• check multijet susy recast sensitivity (Benji+inputs Giacomo)

2) H+H- (Jose)

• check the cross section and compare with chargino production
• recast the chargino analysis in WW

3) check diphoton constraints on the A/H guys for low tan beta (Brian)

• Establish viable regions of parameter space of 2HDM+S model via scan of parameter space

• Evaluate sensitivity of existing monotop searches in parameter space

• Develop dedicated search strategy based on parametrised simulation of signal and background and evaluate reach for 300 fb-1 (Benj: why would a different monotop strategy be needed? Giacomo Because existing analyses may cut too hard for the topologies we are interested in; Benj: aha this is the thing we discussed the other day! Then I am definitely interested.)

• Compare final state topology with simplified model with only one singlet

• Develop variables for measurement of model characteristics