Coordinating a simplified models effort

4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room


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Andreas Weiler (CERN), Benjamin Fuks (Institut Pluridisciplinaire Hubert Curien (FR)), Jacob Wacker (SLAC), Michael Kraemer (Particle Physics), Sabine Kraml (Centre National de la Recherche Scientifique (FR)), Wolfgang Waltenberger (HEPHY VIENNA), Zachary Louis Marshall (Lawrence Berkeley National Lab. (US))
Simplified Models have become one of the standard methods to search for physics beyond the Standard Model, reducing full models with dozens of particles and hundreds of parameters down to a handful of particles and parameters, allowing for the commonalities between different models to become apparent.  

The challenge with Simplified Models is that any full model decomposes into many different Simplified Models. The spectrum of Simplified Models sometimes requires several different particles with many different parameters. Existing experimental analyses are often sensitive to these alternate Simplified Models, so there is not necessarily any additional work for the experiments to do in the limit setting process, it is only a matter of reinterpreting existing results. While the experimental collaborations can do this, it is often beyond their computing resources and the effort required in reinterpreting results could be spent in performing new analyses. 

There are multiple reasons that coordination is desirable.  First, experimental analyses often present results on related, but different Simplified Models. Next, there is no standard format to present the results from Simplified Model results. Finally, there are too many Simplified Models for every relevant experimental analysis to present efficiencies for every Simplified Model.  

This Workshop aims at stimulating more coordination of efforts between theoretical groups and between experimental efforts, starting with the formation of a Simplified Model Working Group.
The goals of this workshop are to:
  1. Define the relevant Simplified Models
  2. Prioritize Simplified Models and assign relevant topologies to different groups
  3. Decide on the format for presentation of efficiencies
  4. Define a format for analysis level cuts and create a standard procedure for reanalysis
A preliminary draft containing the goals of the workshop has been attached (Overview -> Slides).

We have reserved a block of 15 inexpensive rooms (washbasin only) in the St Genis Hostel. If you are interested, please contact Michelle ( 
  • Al Goshaw
  • Alaettin Serhan Mete
  • alessandro ballestrero
  • Alessandro Gaz
  • Andre Lessa
  • Andreas Weiler
  • Arno Heister
  • Artur Apresyan
  • Azar Mustafayev
  • Benjamin Fuks
  • Brett Jackson
  • Brian Petersen
  • Caterina Doglioni
  • Chris Rogan
  • Cristian Pena
  • Daniel Stolarski
  • David COTE
  • Enrico Maria Sessolo
  • Eva Halkiadakis
  • Florian Goertz
  • Giuliano Panico
  • Guillaume Chalons
  • Herbi Dreiner
  • Ian-Woo Kim
  • Jan Heisig
  • Javier Duarte
  • Jay Wacker
  • Jenny List
  • Jory Sonneveld
  • Joseph Lykken
  • Juan Rojo
  • Kamila Kowalska
  • Kazuki Sakurai
  • Lesya Shchutska
  • Lisa Edelhaeuser
  • Lisa Zeune
  • Luca Malgeri
  • Marc Dünser
  • Maria Spiropulu
  • Mariarosaria D'Alfonso
  • Matthias Hamer
  • Maurizio Pierini
  • Michael Kraemer
  • Michael Sigamani
  • Michele Papucci
  • Myeonghun Park
  • Nadja Strobbe
  • Oliver Ricken
  • Paris Sphicas
  • Pedro Schwaller
  • Pieter Everaerts
  • Sabine Kraml
  • Simone Amoroso
  • Sophio Pataraia
  • Stephane Willocq
  • Suchita Kulkarni
  • Tania Robens
  • Till Eifert
  • Tobias Golling
  • Wolfgang Waltenberger
  • Zachary Louis Marshall