BSM benchmark points

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'''Defining Les Houches benchmark points for LHC first data'''
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== List of possible benchmark points for LHC first data ==
{| border="1" cellspacing="0" cellpadding="5" align="center"
{| border="1" cellspacing="0" cellpadding="5" align="center"
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  |-
  | UED5D 1/R=500 GeV  
  | UED5D 1/R=500 GeV  
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  | Ref
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  |  
 +
* Reference : T. Appelquist, H.-C. Cheng, B.A. Dobrescu, Phys. Rev. D64 (2001)
 +
035002 [http://arxiv.org/abs/hep-ph/0012100 hep-ph/0012100]
 +
* 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]
 +
* Herwig implementation is using J. M. Smillie, B. R. Webber, [http://arxiv.org/abs/hep-ph/0507170 hep-ph/0507170v3]
  | Pythia6.4  
  | Pythia6.4  
-
  | FHerwig or Herwig++ ??
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  | 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  
-
  | ...
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  | Further studies needed to understand differences between generator implementations
  |-
  |-
  | Leptoquarks 200,350 GeV B = 0.5 1,2,3gen
  | Leptoquarks 200,350 GeV B = 0.5 1,2,3gen
  | Ref
  | Ref
-
  |  
+
  | Pythia6.4
-
  |
+
  | No
-
  |
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  | Whizard (part of extended model)
  | No
  | No
  | ...
  | ...
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  | Need a clear reference
  | Need a clear reference
  | Pythia6.4 (no Helicities)  
  | Pythia6.4 (no Helicities)  
-
  |
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  | FHerwig (only to fermions), Herwig++(with helicities) in near future
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  | Madgraph, McAtNlo
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  | Madgraph, McAtNlo, Sherpa (SSM), Whizard (fermions, VV are added)
  | No
  | No
  | ...
  | ...
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  | Need a clear reference
  | Need a clear reference
  | Pythia6.4 (no Helicities)
  | Pythia6.4 (no Helicities)
-
  |
+
  | FHerwig (only to fermions), Herwig++(with helicities) in near future
-
  |
+
  | Whizard (as part of Little Higgs models)
  | No
  | No
  | ...
  | ...
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  |
  |
  | Pythia6.4
  | Pythia6.4
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  |
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  | FHerwig & Herwig++
  |
  |
  | No
  | No
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  | BlackHole, missing parameters ?
  | BlackHole, missing parameters ?
  |
  |
-
  |
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  |  
  |
  |
  | Charybdis or Blackmax ?
  | Charybdis or Blackmax ?
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  |-
  |-
  | ADD -> monojet, monophoton (N=2, mD=1.5 TeV) + (N=6, mD=1 TeV)
  | ADD -> monojet, monophoton (N=2, mD=1.5 TeV) + (N=6, mD=1 TeV)
 +
|
 +
| No
  |
  |
-
|
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  | Madgraph(?), Sherpa (virtual and real gravitons)
-
|
+
-
  | Madgraph(?)
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  | Soon
  | Soon
  | ...
  | ...
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  |
  |
  | Pythia6.4
  | Pythia6.4
-
  |
+
  | No
  |
  |
  | No
  | No
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  |
  |
  | Pythia6.4
  | Pythia6.4
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  |
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  | FHerwig
  |
  |
  | No
  | No
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  | RS ???
  | RS ???
  | Pythia6.4
  | Pythia6.4
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  |
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  | No
-
  | Calchep
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  | Calchep, Sherpa (phantom higgs)
  | No
  | No
  | ...
  | ...
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  |
  | No
  | No
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  |
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  | Maybe in Herwig++
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  | (Whizard) -> ask whizard authors
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  | Whizard (alpha version)
  | On-going
  | On-going
  | ...
  | ...
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  | No
  | No
  | No
  | No
-
  | madgraph, sherpa, calchep if FeynRules
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  | madgraph, sherpa, calchep, Whizard if FeynRules
  | Being tested
  | Being tested
  | ...
  | ...
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  |  
  |  
  | No
  | No
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  |
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  | Final validation in Herwig++
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  | Calchep
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  | Calchep, Whizard
  | Being tested
  | Being tested
  | ...
  | ...
  |-
  |-
-
  | Hidden valley  
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  | Hidden valley
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  | Matt, Jay, David, ?
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  | [[HidSec_benchmark_points]]
  | ???
  | ???
-
  |
+
  | Working on it (dark cascade)
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  | Sherpa (which version?), what else ?
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  | Sherpa (Working on it), what else ?
  | David working on SUSY + hidden U(1)
  | David working on SUSY + hidden U(1)
  | benchmark points not found by standard SUSY searches. multiple leptons, photons, taus, bs. l+l-,gammagamma resonnances.
  | benchmark points not found by standard SUSY searches. multiple leptons, photons, taus, bs. l+l-,gammagamma resonnances.
  |-
  |-
  | Heavy Majorana neutrinos
  | Heavy Majorana neutrinos
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  | Which model ?
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  | Which model ? ex. [http://arXiv.org/pdf/0812.4313 arXiv/0812.4313]
  | Pythia6.4
  | Pythia6.4
-
  |
+
  | No
  | Calchep
  | Calchep
  | Lorenzo Basso cross-checking
  | Lorenzo Basso cross-checking
-
  | ...
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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]
  |-
  |-
  | WR->l VR
  | WR->l VR
  | What the model actually is ?
  | What the model actually is ?
  | Pythia6.4
  | Pythia6.4
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  |
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  | No
-
  |
+
  |  
  | ?
  | ?
  | ...
  | ...
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  | Low-scale technicolor ?
  | Low-scale technicolor ?
  | Pythia6.4
  | Pythia6.4
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  |
+
  | No
  |
  |
  | No
  | No
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  |
  |
  | Pythia6.4
  | Pythia6.4
-
  |
+
  | No
  |
  |
  | No
  | No
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  |  
  |  
  | Pythia6.4
  | Pythia6.4
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  |
+
  | No
-
  |
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  | Sherpa (including CKM mixing), Whizard (prep.)
  | Useless
  | Useless
  | ...
  | ...
  |}
  |}
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 +
 +
== 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
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.
writting rights.

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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