English

Prospects for Supersymmetry at LEP2

High Energy Physics - Phenomenology 2009-02-11 v1

Abstract

Working within the framework of the minimal supergravity model with gauge coupling unification and radiative electroweak symmetry breaking (SUGRA), we map out regions of parameter space explorable by experiments at LEP2, for center of mass energy options of s=150, 175\sqrt{s}=150,\ 175, 190190 and 205 GeV. We compute signals from all accessible 222 \rightarrow 2 SUSY pair production processes using the ISAJET simulation program, and devise cuts that enhance the signal relative to Standard Model backgrounds, and which also serve to differentiate various supersymmetric processes from one another. We delineate regions of SUGRA parameter space where production of neutralino pairs, chargino pairs, slepton pairs and the production of the light Higgs scalar of SUSY is detectable above Standard Model backgrounds and distinguishable from other SUSY processes. In addition, we find small regions of SUGRA parameter space where \te\te\te\te, \tz2\tz2\tz_2\tz_2 and \tnuL\tnuL\tnu_L\tnu_L production yields spectacular events with up to four isolated leptons. The combined regions of parameter space explorable by LEP2 are compared with the reach of Tevatron Main Injector era experiments. Finally, we comment on how the reach via the neutralino pair channel is altered when the radiative electroweak symmetry breaking constraint is relaxed.

Keywords

Cite

@article{arxiv.hep-ph/9506459,
  title  = {Prospects for Supersymmetry at LEP2},
  author = {Howard Baer and Michal Brhlik and Ray Munroe and Xerxes Tata},
  journal= {arXiv preprint arXiv:hep-ph/9506459},
  year   = {2009}
}

Comments

22 page REVTEX file + 9 uuencoded figures; a uuencoded PS file with PS figures is available via anonymous ftp at ftp://hep.fsu.edu/preprints/baer/FSUHEP950501.uu

R2 v1 2026-07-22T14:26:39.486Z