1994/12/21 by J. Lopez, Jorge L. Lopez, D.V. Nanopoulos +4 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.52.142
published as Phys.Rev.D52:142-148,1995 · 12 pages (LaTeX), 6 figures (included)
arxiv created 1994/12/21 · openalex publication_date 1995/07/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We consider the production of supersymmetry neutralinos and charginos in pp\ifmmode\else\textasciimacron\fi collisions at the Fermilab Tevatron, and their subsequent decay via hadronically quiet dileptons and trileptons. We perform our computations in the context of a variety of supergravity models, including generic four-parameter supergravity models, the minimal SU(5) supergravity model, and SU(5)\ifmmode×\else\texttimes\fiU(1) supergravity with string-inspired two- and one-parameter moduli and dilaton scenarios. Our results are contrasted with estimated experimental sensitivities for dileptons and trileptons for integrated luminosities of 100 pb^\mathrm\ensuremath-1 and 1 fb^\mathrm\ensuremath-1, which should be available in the short and long terms. We find that the dilepton mode is a needed complement to the trilepton signal when the latter is suppressed by small neutralino leptonic branching ratios. The estimated reaches in chargino masses can be as large as 100 (150) GeV for 100 pb^\mathrm\ensuremath-1 (1 fb^\mathrm\ensuremath-1). We also discuss the task left for CERN LEP II once the Tevatron has completed its short-term search for dilepton and trilepton production.