Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1994-12-21
Phys.Rev.D52:142-148,1995
Physics
High Energy Physics
High Energy Physics - Phenomenology
12 pages (LaTeX), 6 figures (included)
Scientific paper
10.1103/PhysRevD.52.142
We consider the production of supersymmetry neutralinos and charginos in $p\bar p$ collisions at the 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 $SU(5)\times U(1)$ 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 $100\ipb$ and $1\ifb$, 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 $100\ipb\,(1\ifb)$. We also discuss the task left for LEPII once the Tevatron has completed its short-term search for dilepton and trilepton production.
Lopez Javier
Nanopoulos Dimitri
Wang Xinhua
Zichichi Antonino
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