BSM benchmark points

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* Reference : T. Appelquist, H.-C. Cheng, B.A. Dobrescu, Phys. Rev. D64 (2001)
* Reference : T. Appelquist, H.-C. Cheng, B.A. Dobrescu, Phys. Rev. D64 (2001)
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035002 [hep-ph/0012100]
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035002 [http://arxiv.org/abs/hep-ph/0012100 hep-ph/0012100]
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* Pythia implementation is using P.-H. Beauchemin, G. Azuelos, ATL-PHYS-PUB-2005-003
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* Pythia implementation is using P.-H. Beauchemin, G. Azuelos, [http://cdsweb.cern.ch/record/816892/files/phys-pub-2005-003.pdf ATL-PHYS-PUB-2005-003]
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* Herwig implementation is using hep-ph/0507170v3
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* Herwig implementation is using J. M. Smillie, B. R. Webber, [http://arxiv.org/abs/hep-ph/0507170 hep-ph/0507170v3]
  | Pythia6.4  
  | Pythia6.4  
  | Herwig++  
  | Herwig++  
  | Whizard,?  
  | Whizard,?  
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  | Yes, to be cross-checked  
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  | [http://feynrules.phys.ucl.ac.be/view/Main/MUED Yes], to be cross-checked  
  | Further studies needed to understand differences between generator implementations
  | Further studies needed to understand differences between generator implementations
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  | Calchep
  | Calchep
  | Lorenzo Basso cross-checking
  | Lorenzo Basso cross-checking
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  | Z' in the U(1)_B-L model [http://www.http://www.hep.phys.soton.ac.uk/~l.basso/Les_Houches_09_Basso.pdf Basso LH09 talk]
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  | Z' in the U(1)_B-L model [http://www.hep.phys.soton.ac.uk/~l.basso/Les_Houches_09_Basso.pdf Basso LH09 talk]
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  | WR->l VR
  | WR->l VR

Current revision

List of possible benchmark points for LHC first data

Model Reference Pythia Herwig Other Generators FeynRules Comments
UED5D 1/R=500 GeV
  • Reference : T. Appelquist, H.-C. Cheng, B.A. Dobrescu, Phys. Rev. D64 (2001)

035002 hep-ph/0012100

Pythia6.4 Herwig++ Whizard,? Yes, to be cross-checked Further studies needed to understand differences between generator implementations
Leptoquarks 200,350 GeV B = 0.5 1,2,3gen Ref Pythia6.4 No Whizard (part of extended model) No ...
Z'->ee,mumu,tbar{t},WW, Mass=[1-2] TeV Need a clear reference Pythia6.4 (no Helicities) FHerwig (only to fermions), Herwig++(with helicities) in near future Madgraph, McAtNlo, Sherpa (SSM), Whizard (fermions, VV are added) No ...
W'->enu, munu, WZ Mass=[1-2] TeV Need a clear reference Pythia6.4 (no Helicities) FHerwig (only to fermions), Herwig++(with helicities) in near future Whizard (as part of Little Higgs models) No ...
Randall-Sundrum -> photon photon, e+e-, ZZ (K/Mp = 2 Mass(graviton) = 1.5TeV) + (K/Mp = 0.05 Mass(graviton) = 500GeV) Pythia6.4 FHerwig & Herwig++ No ...
BlackHole, missing parameters ? Charybdis or Blackmax ? No ...
ADD -> monojet, monophoton (N=2, mD=1.5 TeV) + (N=6, mD=1 TeV) No Madgraph(?), Sherpa (virtual and real gravitons) Soon ...
Compositeness in dijets, e+e-, mu+mu- Pythia6.4 No No ...
Heavy stable charge particles : stau, gluino, stop Pythia6.4 FHerwig No Can we do a benchmark from this ?
Radions 300 GeV RS ??? Pythia6.4 No Calchep, Sherpa (phantom higgs) No ...
Little(st?) Higgs with T-parity No Maybe in Herwig++ Whizard (alpha version) On-going ...
SUSY Dirac gauginos Dirac Gauginos No No madgraph, sherpa, calchep, Whizard if FeynRules Being tested ...
NMSSM, check previous les houches ? No Final validation in Herwig++ Calchep, Whizard Being tested ...
Hidden valley HidSec_benchmark_points  ??? Working on it (dark cascade) Sherpa (Working on it), what else ? David working on SUSY + hidden U(1) benchmark points not found by standard SUSY searches. multiple leptons, photons, taus, bs. l+l-,gammagamma resonnances.
Heavy Majorana neutrinos Which model ? ex. arXiv/0812.4313 Pythia6.4 No Calchep Lorenzo Basso cross-checking Z' in the U(1)_B-L model Basso LH09 talk
WR->l VR What the model actually is ? Pythia6.4 No  ? ...
Technicolor : techni-a -> Wgamma, Zgamma Low-scale technicolor ? Pythia6.4 No No ...
Unparticles : di-gamma continuum Pythia6.4 No No ...
Fourth generation : b', t' - what masses ? Pythia6.4 No Sherpa (including CKM mixing), Whizard (prep.) Useless ...


Open issues

  • Need to be more explicit about versions of generators required
  • Need to check what can be done with Pythia8
  • Whenever possible, do we compare cross-sections from different generators ?

A les houches BSM svn repository will be setup to store data cards (FeynRules or others) for the different points/generators. Please contact Renaud.BruneliereNoSpamcern.ch and Filip.MoortgatNoSpamcern.ch for getting writting rights.

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