2022 Impact factor 4.4
Particles and Fields

Eur. Phys. J. C 22, 535-561 (2001)
DOI: 10.1007/s100520100792

Proposed Post-LEP benchmarks for supersymmetry

M. Battaglia1, A. De Roeck1, J. Ellis1, F. Gianotti1, K.T. Matchev1, K.A. Olive1, 2, L. Pape1 and G. Wilson3

1  CERN, 1211 Geneva, Switzerland
2  Theoretical Physics Institute, School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA
3  Department of of Physics and Astronomy, Schuster Laboratory, University of Manchester, Manchester, UK

(Received: 28 June 2001 / Revised version: 12 September 2001 / Published online: 23 November 2001 - © Springer-Verlag / Società Italiana di Fisica 2001 )

We propose a new set of supersymmetric benchmark scenarios, taking into account the constraints from LEP, $b \rightarrow s \gamma$, $g_\mu - 2$ and cosmology. We work in the specific context of the constrained MSSM (CMSSM) with universal soft supersymetry-breaking masses and vanishing trilinear terms, assuming that R parity is conserved. We propose benchmark points that exemplify the different generic possibilities in this context, including focus-point models, points where coannihilation effects on the relic density are important, and points with rapid relic annihilation via direct-channel Higgs poles. We discuss the principal decays and signatures of the different classes of benchmark scenarios, and make initial estimates of the physics reaches of different accelerators, including the Tevatron collider, the LHC, and e+ e- colliders in the sub- and multi-TeV ranges. We stress the complementarity of hadron and lepton colliders, with the latter favoured for non-strongly-interacting particles and precision measurements. We mention features that could usefully be included in future versions of supersymmetric event generators.

© Società Italiana di Fisica, Springer-Verlag 2001